{"id":11690,"date":"2024-10-14T18:57:05","date_gmt":"2024-10-15T02:57:05","guid":{"rendered":"https:\/\/shengenfab.com\/?p=11690"},"modified":"2026-07-20T19:59:57","modified_gmt":"2026-07-21T03:59:57","slug":"what-is-electric-resistance-welding","status":"publish","type":"post","link":"https:\/\/shengenfab.com\/fr\/what-is-electric-resistance-welding\/","title":{"rendered":"Soudage par r\u00e9sistance \u00e9lectrique : proc\u00e9d\u00e9, conception et qualit\u00e9"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"11690\" class=\"elementor elementor-11690\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-24b6b152 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"24b6b152\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4548a3f5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4548a3f5\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5e3a3fe2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5e3a3fe2\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6b444424 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6b444424\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-75b604dd elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"75b604dd\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-40286811 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"40286811\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3a1c0182 custom-ele-section-css elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3a1c0182\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-66 elementor-top-column elementor-element elementor-element-1613cf45\" data-id=\"1613cf45\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-53537d5 elementor-widget elementor-widget-text-editor\" data-id=\"53537d5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Electric resistance welding (ERW) is a manufacturing process that fuses metals using localized heat generated by electrical resistance and mechanical pressure. It requires no filler materials or shielding gases, making it a high-speed, cost-effective method for sheet metal assembly and mass production.<\/p>\n<p>While the underlying physics are straightforward, achieving consistent results on the factory floor is a completely different challenge. A poorly controlled ERW process quickly leads to high scrap rates, weak joints, or ruined surface finishes.<\/p>\n<p>Reliable results depend on material selection, joint design, electrode condition, and precise process control. This guide explains how to select the right resistance welding process, design weldable parts, control common defects, and estimate production requirements for your manufacturing projects.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-00eb6da elementor-widget elementor-widget-image\" data-id=\"00eb6da\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"600\" height=\"375\" src=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2024\/10\/Electric-Resistance-Welding.jpg\" class=\"attachment-large size-large wp-image-11702\" alt=\"Electric Resistance Welding\" srcset=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2024\/10\/Electric-Resistance-Welding.jpg 600w, https:\/\/shengenfab.com\/wp-content\/uploads\/2024\/10\/Electric-Resistance-Welding-300x188.jpg 300w, https:\/\/shengenfab.com\/wp-content\/uploads\/2024\/10\/Electric-Resistance-Welding-18x12.jpg 18w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2e5bd51 elementor-widget elementor-widget-text-editor\" data-id=\"2e5bd51\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"understand-how-resistance-welding-forms-the-joint\" class=\"atx\">Understand How Resistance Welding Forms the Joint<\/h2>\n<p>To master resistance welding, you must first grasp the physical forces at play. Current, time, and pressure combine to fuse metals seamlessly without filler materials.<\/p>\n<h3 id=\"joule-heating-and-electrode-force-mechanics\" class=\"atx\">Joule Heating and Electrode Force Mechanics<\/h3>\n<p>The core mechanism of resistance welding is Joule heating. When copper electrodes clamp metal sheets together, the natural electrical resistance at the metal interface converts the applied current into heat.<\/p>\n<p>This process follows a basic physical relationship:<\/p>\n<p>Q = I\u00b2Rt<\/p>\n<p>In this formula, heat (Q) is determined by current (I), electrical resistance (R), and weld time (t). Because current is squared, it has the largest impact on heat generation. Even minor voltage drops in a factory grid can result in cold welds.<\/p>\n<p>Current and weld time control the total heat input, while electrode force serves a mechanical purpose. The force controls the contact pressure and contains the molten metal. Excessive heat or insufficient electrode force causes expulsion (spatter)\u2014where molten metal blasts out of the joint. Insufficient heat fails to melt the interface completely, creating a weak weld that may fail under load.<\/p>\n<h3 id=\"weld-cycle-and-nugget-formation\" class=\"atx\">Weld Cycle and Nugget Formation<\/h3>\n<p>A consistent joint requires a precise mechanical and electrical sequence. The welding machine controller typically manages four main stages for every weld:<\/p>\n<ul>\n<li><strong>Squeeze time:<\/strong> The electrodes close and apply full mechanical force before the current begins to flow. This ensures stable electrical contact and clamps the parts flat.<\/li>\n<li><strong>Weld time:<\/strong> Electrical current passes through the sheets, melting the metal at the interface to form a molten pool.<\/li>\n<li><strong>Hold time:<\/strong> The current stops, but the electrodes maintain full pressure while the molten metal cools and solidifies into a solid weld nugget.<\/li>\n<li><strong>Off time:<\/strong> The electrodes retract, releasing the part so the operator or robot can index to the next weld location.<\/li>\n<\/ul>\n<blockquote>\n<p><strong>Engineering Tip:<\/strong> Releasing electrode pressure before the hold time completes is a leading cause of internal voids and unseen weld cracking.<\/p>\n<\/blockquote>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-eff8fe1 elementor-widget elementor-widget-image\" data-id=\"eff8fe1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"768\" height=\"388\" src=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2024\/10\/Critical-Equipment-Used-in-Electric-Resistance-Welding.jpg\" class=\"attachment-large size-large wp-image-11704\" alt=\"Critical Equipment Used in Electric Resistance Welding\" srcset=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2024\/10\/Critical-Equipment-Used-in-Electric-Resistance-Welding.jpg 768w, https:\/\/shengenfab.com\/wp-content\/uploads\/2024\/10\/Critical-Equipment-Used-in-Electric-Resistance-Welding-300x152.jpg 300w, https:\/\/shengenfab.com\/wp-content\/uploads\/2024\/10\/Critical-Equipment-Used-in-Electric-Resistance-Welding-18x9.jpg 18w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b9e91f6 elementor-widget elementor-widget-text-editor\" data-id=\"b9e91f6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"choose-the-right-resistance-welding-process\" class=\"atx\">Choose the Right Resistance Welding Process<\/h2>\n<p>In manufacturing, &#8220;electric resistance welding&#8221; (ERW) serves as an umbrella term for a family of processes. While high-frequency ERW is widely used in continuous tube and pipe production, most product design and sheet metal assembly rely on spot, seam, and projection welding.<\/p>\n<h3 id=\"spot-and-seam-welding-for-sheet-metal-assemblies\" class=\"atx\">Spot and Seam Welding for Sheet Metal Assemblies<\/h3>\n<p><a href=\"https:\/\/shengenfab.com\/what-is-spot-welding\/\" target=\"_blank\" rel=\"noopener\">Resistance spot welding<\/a> is the standard process for repeated lap joints in sheet metal assemblies. It is highly efficient for materials typically ranging from 0.5mm to 3.0mm in thickness per sheet.<\/p>\n<p>Typical applications include:<\/p>\n<ul>\n<li><strong>Enclosures:<\/strong> Where overlapping sheet metal flanges provide structural rigidity.<\/li>\n<li><strong>Brackets:<\/strong> For fast assembly without adding the weight of mechanical fasteners.<\/li>\n<li><strong>Automotive panels:<\/strong> Suitable for high-speed, automated robotic welding.<\/li>\n<li><strong>Electrical cabinets<\/strong><\/li>\n<li><strong>Appliance components<\/strong><\/li>\n<\/ul>\n<p>Resistance seam welding operates on the same physical principles but uses rotating copper-alloy wheels instead of point electrodes. As the sheet feeds between the wheels, the machine pulses the current to create a series of overlapping weld nuggets.<\/p>\n<p>Typical applications include:<\/p>\n<ul>\n<li><strong>Tanks:<\/strong> Where leak-resistant or hermetic seams are required.<\/li>\n<li><strong>Drums and metal containers<\/strong><\/li>\n<li><strong>Thin-wall tubular products<\/strong><\/li>\n<\/ul>\n<h3 id=\"projection-welding\" class=\"atx\">Projection Welding<\/h3>\n<p>Unlike spot welding, where the electrode tip defines the weld location, <a href=\"https:\/\/shengenfab.com\/projection-welding\/\" target=\"_blank\" rel=\"noopener\">projection welding<\/a> uses the shape of the part itself to concentrate current and pressure. One of the mating parts features small, raised dimples (projections). When flat electrodes apply force, these projections heat rapidly, collapse, and fuse with the flat mating sheet.<\/p>\n<p>This process allows for multiple weld points in a single machine stroke and reduces visible indentation on the external surface (a major cosmetic advantage). Common applications include:<\/p>\n<ul>\n<li><strong>Weld nuts and weld studs:<\/strong> Fasteners are supplied with pre-formed projections.<\/li>\n<li><strong>Crossed wires:<\/strong> Commonly used in wire mesh manufacturing.<\/li>\n<li><strong>Multiple weld points:<\/strong> For small stamped parts needing simultaneous welds.<\/li>\n<li><strong>Thick-to-thin joints:<\/strong> Where spot welding would cause severe heat imbalance.<\/li>\n<\/ul>\n<p>Weld consistency in this process relies heavily on projection shape, precise part location, and rigid fixture accuracy to ensure all projections collapse evenly.<\/p>\n<h3 id=\"butt-and-high-frequency-welding\" class=\"atx\">Butt and High-Frequency Welding<\/h3>\n<p>Upset butt welding and flash welding are used to join the ends of components rather than overlapping sheets. Typical applications involve wire and rod, rings, structural profiles, and rail components.<\/p>\n<p>High-frequency (HF) contact and induction welding use high-frequency current to heat the edges of a continuous seam. This method is almost exclusively used for continuous tube and pipe production in rolling mills.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-10bbcf8 elementor-widget elementor-widget-html\" data-id=\"10bbcf8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div style=\"\r\n  width: 100%;\r\n  max-width: 100%;\r\n  overflow-x: auto;\r\n  margin: 24px 0;\r\n  font-family: Arial, Helvetica, sans-serif;\r\n  -webkit-overflow-scrolling: touch;\r\n\">\r\n  <table style=\"\r\n    width: 100%;\r\n    min-width: 820px;\r\n    border-collapse: collapse;\r\n    table-layout: fixed;\r\n    background-color: #ffffff;\r\n    color: #111111;\r\n    font-size: 16px;\r\n    line-height: 1.45;\r\n  \">\r\n    <thead>\r\n      <tr>\r\n        <th style=\"\r\n          width: 19%;\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n          font-size: 16px;\r\n          font-weight: 700;\r\n          background-color: #ffffff;\r\n        \">\r\n          Process\r\n        <\/th>\r\n\r\n        <th style=\"\r\n          width: 20%;\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n          font-size: 16px;\r\n          font-weight: 700;\r\n          background-color: #ffffff;\r\n        \">\r\n          Joint Type\r\n        <\/th>\r\n\r\n        <th style=\"\r\n          width: 20%;\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n          font-size: 16px;\r\n          font-weight: 700;\r\n          background-color: #ffffff;\r\n        \">\r\n          Typical<br>Application\r\n        <\/th>\r\n\r\n        <th style=\"\r\n          width: 20%;\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n          font-size: 16px;\r\n          font-weight: 700;\r\n          background-color: #ffffff;\r\n        \">\r\n          Production<br>Volume\r\n        <\/th>\r\n\r\n        <th style=\"\r\n          width: 21%;\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n          font-size: 16px;\r\n          font-weight: 700;\r\n          background-color: #ffffff;\r\n        \">\r\n          Main Limitation\r\n        <\/th>\r\n      <\/tr>\r\n    <\/thead>\r\n\r\n    <tbody>\r\n      <tr>\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n          font-weight: 700;\r\n        \">\r\n          Spot Welding\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Lap joint\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Enclosures,<br>brackets\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Medium to High\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Leaves visible surface indentations\r\n        <\/td>\r\n      <\/tr>\r\n\r\n      <tr>\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n          font-weight: 700;\r\n        \">\r\n          Seam Welding\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Continuous lap\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Fluid tanks, drums\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Medium to High\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Limited to straight lines or large radii\r\n        <\/td>\r\n      <\/tr>\r\n\r\n      <tr>\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n          font-weight: 700;\r\n        \">\r\n          Projection\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Lap or hardware\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Weld nuts, wire mesh\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          High\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Requires precise fixturing\r\n        <\/td>\r\n      <\/tr>\r\n\r\n      <tr>\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n          font-weight: 700;\r\n        \">\r\n          Butt \/ Flash\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          End-to-end\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Rods, rings, chain links\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Medium to High\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Often requires post-weld grinding\r\n        <\/td>\r\n      <\/tr>\r\n\r\n      <tr>\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n          font-weight: 700;\r\n        \">\r\n          HF ERW\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Continuous seam\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Structural steel tube\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Very High\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 16px 10px;\r\n          border: 1px solid #222222;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Economical only for continuous linear production\r\n        <\/td>\r\n      <\/tr>\r\n    <\/tbody>\r\n  <\/table>\r\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5fe7295 elementor-widget elementor-widget-text-editor\" data-id=\"5fe7295\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"check-material-and-thickness-limits\" class=\"atx\">Check Material and Thickness Limits<\/h2>\n<p>Every alloy behaves differently under the electrode. Your material choice directly dictates your cycle times, maintenance intervals, and the risk of hidden cold welds.<\/p>\n<h3 id=\"low-carbon-and-stainless-steel-alloys\" class=\"atx\">Low-Carbon and Stainless Steel Alloys<\/h3>\n<p>Low-carbon steel (mild steel) is the baseline material for resistance welding. It provides a wide, forgiving parameter window by naturally balancing electrical resistance and thermal conductivity. This results in stable nugget formation and excellent repeatability. For automated production lines, mild steel requires the least amount of process troubleshooting.<\/p>\n<p>Stainless steel behaves differently. Because it possesses higher electrical resistance and lower thermal conductivity than carbon steel, heat concentrates much faster at the joint. While this means stainless requires less welding current, it introduces significant cosmetic challenges. The intense, localized heat often causes heat tint (discoloration) and leaves visible electrode marks.<\/p>\n<h3 id=\"galvanized-and-coated-sheet-metal\" class=\"atx\">Galvanized and Coated Sheet Metal<\/h3>\n<p>Applying a protective zinc coating to steel fundamentally changes the electrical contact. Zinc melts at a much lower temperature than steel. During the weld cycle, the zinc layer melts first, acting as a conductive bridge that lowers the contact resistance and forces the machine to push more current to achieve the same heat.<\/p>\n<p>For production, coated steels introduce significant maintenance variables, primarily electrode contamination. The molten zinc alloys with the copper electrodes, forming a brass layer on the tip. This causes the electrodes to physically stick to the workpiece and accelerate tip wear, which drops the current density and causes cold welds.<\/p>\n<blockquote>\n<p>\u26a0\ufe0f <strong>Production Note:<\/strong> Welding galvanized steel introduces molten zinc into the copper electrodes. Without automated tip dressing (cutting the electrode face back to its original geometry), cycle times drop and cold welds increase. Always verify that your manufacturing partner accounts for this in their high-volume tooling strategy.<\/p>\n<\/blockquote>\n<h3 id=\"high-conductivity-metals-and-complex-stacks\" class=\"atx\">High-Conductivity Metals and Complex Stacks<\/h3>\n<p>Metals with high thermal and electrical conductivity actively resist this welding process. The heat dissipates into the surrounding metal before a stable molten pool can form.<\/p>\n<ul>\n<li><strong>Aluminum:<\/strong> Requires massive current spikes (often 2 to 3 times that of steel), extremely short weld times, and aggressive mechanical or chemical removal of surface oxides prior to welding. It degrades electrodes rapidly.<\/li>\n<li><strong>Copper:<\/strong> Notoriously difficult to spot weld to itself because heat moves away from the joint instantly. It typically requires specialized refractory electrodes (like tungsten or molybdenum) that generate heat at the electrode face to push into the copper.<\/li>\n<\/ul>\n<p>When dealing with material stacks, there is no universal &#8220;maximum thickness&#8221; rule\u2014final limits must be verified by equipment capacity and destructive testing. However, engineers must carefully evaluate <strong>thickness ratios<\/strong> (joining a 3.0mm sheet to a 0.5mm sheet is difficult as the thin sheet overheats before the thick sheet melts) and <strong>total layer count<\/strong> (welding three or more layers increases the risk of internal voids and inconsistent heat distribution).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-79406e6 elementor-widget elementor-widget-image\" data-id=\"79406e6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"534\" src=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2024\/10\/spot-welding-1024x683.jpg\" class=\"attachment-large size-large wp-image-11700\" alt=\"spot welding\" srcset=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2024\/10\/spot-welding-1024x683.jpg 1024w, https:\/\/shengenfab.com\/wp-content\/uploads\/2024\/10\/spot-welding-300x200.jpg 300w, https:\/\/shengenfab.com\/wp-content\/uploads\/2024\/10\/spot-welding-768x512.jpg 768w, https:\/\/shengenfab.com\/wp-content\/uploads\/2024\/10\/spot-welding-1536x1024.jpg 1536w, https:\/\/shengenfab.com\/wp-content\/uploads\/2024\/10\/spot-welding-2048x1365.jpg 2048w, https:\/\/shengenfab.com\/wp-content\/uploads\/2024\/10\/spot-welding-18x12.jpg 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3c40c89 elementor-widget elementor-widget-text-editor\" data-id=\"3c40c89\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Design Parts for Reliable Welding (DFM)<\/h2>\n<p>Excellent manufacturing begins on the drafting board. Optimize your part geometry and clearances early to avoid expensive tooling revisions and assembly failures.<\/p>\n<h3 id=\"electrode-clearances-and-minimum-flange-widths\" class=\"atx\">Electrode Clearances and Minimum Flange Widths<\/h3>\n<p>Resistance welding electrodes require unobstructed, perpendicular access to both sides of the joint. If the tooling cannot physically reach the weld location, the part cannot be manufactured.<\/p>\n<p>During the design phase, engineers must verify:<\/p>\n<ul>\n<li><strong>Approach direction:<\/strong> Are there deep enclosures, ribs, or hardware blocking the electrode shank?<\/li>\n<li><strong>Nearby bends:<\/strong> Tooling will crash if a weld is placed too close to a vertical wall or bend radius.<\/li>\n<li><strong>Minimum flange width:<\/strong> The flange must be wide enough to accommodate the full face of the electrode, the expanding weld nugget, the required edge distance, and normal sheet metal folding tolerances.<\/li>\n<\/ul>\n<h3 id=\"shunting-effects-weld-spacing-and-edge-distances\" class=\"atx\">Shunting Effects, Weld Spacing, and Edge Distances<\/h3>\n<p>Placing a weld too close to the edge of a flange causes edge blowout (expulsion). The molten metal lacks enough surrounding solid material to contain it, resulting in severe local deformation, sharp burrs, and weak joint strength.<\/p>\n<p>Equally important is the spacing between multiple welds, driven by a phenomenon called <strong>shunting<\/strong>. Electric current takes the path of least resistance. If a new spot weld is placed too close to a previously completed weld, a large portion of the current will &#8220;shunt&#8221; (divert) through the existing solid weld rather than flowing through the new sheet interface. The result is a cold, undersized nugget at the new location.<\/p>\n<p>While a general guideline like 3 to 4 times the material thickness (3t to 4t) is often cited as a starting point for weld spacing, this is not a universal rule. Actual required spacing is dictated by the target nugget size, material conductivity, electrode diameter, and the programmed welding sequence.<\/p>\n<h3 id=\"part-fit-up-and-welded-fastener-integration\" class=\"atx\">Part Fit-Up and Welded Fastener Integration<\/h3>\n<p>A resistance welder is not a press brake; it should not be used to force poorly formed parts together. If there are gaps, springback, or burrs between the mating sheets, the machine wastes its electrode force closing the gap rather than containing the weld. This leads to heavy expulsion, rapid electrode damage, and inconsistent weld strength. Parts must sit flush in the fixture before the electrodes clamp down.<\/p>\n<p>When integrating weld nuts and studs (projection welding), control over the hardware is critical. Engineers must specify:<\/p>\n<ul>\n<li><strong>Hole position and tolerances:<\/strong> To ensure the fastener seats flat against the sheet.<\/li>\n<li><strong>Thread protection:<\/strong> Weld spatter can easily ruin internal threads; specify spatter-resistant coatings or masking if necessary.<\/li>\n<li><strong>Mechanical performance:<\/strong> The final assembly drawings must clearly define the required push-out strength and torque resistance for all welded hardware, which the factory will verify via destructive testing during setup.<\/li>\n<\/ul>\n<blockquote>\n<p><strong>Engineering Tip:<\/strong> Always design self-locating features into sheet metal parts (such as tabs and slots) wherever possible. This reduces reliance on expensive custom welding fixtures and prevents parts from shifting under electrode pressure.<\/p>\n<\/blockquote>\n<h2 id=\"control-the-main-welding-parameters\" class=\"atx\">Control the Main Welding Parameters<\/h2>\n<p>Precision relies on strict control of your machinery&#8217;s variables. Balancing current, force, and timing is essential to maintain consistent nugget sizes and joint strength.<\/p>\n<h3 id=\"current-time-and-electrode-force\" class=\"atx\">Current, Time, and Electrode Force<\/h3>\n<p>Process stability relies on balancing three core variables: current, weld time, and electrode force.<\/p>\n<p>Current and time dictate the total heat input. Insufficient heat generation leads to small weld nuggets, incomplete fusion, and &#8220;cold welds&#8221; that possess little to no mechanical strength. Conversely, excessive heat causes expulsion (where molten metal shoots out from the joint interface), surface burning, protective coating damage, and deep surface indentations.<\/p>\n<p>Electrode force serves a dual purpose. Mechanically, it contains the molten metal pool to prevent expulsion. Electrically, it dictates the contact resistance between the sheets. Higher electrode force presses the microscopic peaks of the metal surfaces closer together, <em>lowering<\/em> the contact resistance.<\/p>\n<blockquote>\n<p><strong>Engineering Tip:<\/strong> A common factory error is increasing electrode force to stop expulsion without adjusting the current. Because higher force lowers contact resistance, it decreases the total heat generated, frequently turning an expulsion problem into a hidden cold weld problem.<\/p>\n<\/blockquote>\n<h3 id=\"electrode-shape-cooling-and-wear\" class=\"atx\">Electrode Shape, Cooling, and Wear<\/h3>\n<p>The physical geometry of the copper electrode dictates the current density (Amps per square millimeter) and the pressure distribution across the joint.<\/p>\n<p>In a high-volume production environment, electrodes degrade continuously. The repeated heat and mechanical pounding cause &#8220;mushrooming&#8221;\u2014the tip flattens and its contact area enlarges. If the contact area increases by just 20%, the current density drops significantly. The machine will continue to deliver the programmed current, but the dispersed heat will no longer be sufficient to melt the steel, resulting in joint failure.<\/p>\n<p>Stable production requires active heat removal and surface maintenance:<\/p>\n<ul>\n<li><strong>Cooling-water flow:<\/strong> Chilled water must circulate directly inside the electrode shank to extract heat between cycles.<\/li>\n<li><strong>Tip dressing:<\/strong> Automated or manual cutting tools must periodically shave the copper tip back to its original geometry to maintain consistent current density.<\/li>\n<\/ul>\n<h3 id=\"welding-windows-and-process-monitoring\" class=\"atx\">Welding Windows and Process Monitoring<\/h3>\n<p>Relying on a single, fixed machine setting is a risk in mass manufacturing. Production should instead operate within an approved &#8220;parameter window&#8221; (often mapped as a lobe curve) that accounts for normal fluctuations in material thickness, factory voltage, and tool wear.<\/p>\n<p>A standard welding schedule must explicitly define:<\/p>\n<ul>\n<li>Allowable current and force ranges<\/li>\n<li>Weld and hold times<\/li>\n<li>Electrode alloy and tip geometry specifications<\/li>\n<li>Mandatory tip dressing intervals<\/li>\n<\/ul>\n<p>Modern manufacturing relies on in-process monitoring rather than just post-weld inspection. By tracking actual current delivery, electrode displacement (how much the metal compresses as it melts), and dynamic resistance curves in real-time, process controllers can detect electrode wear, surface contamination, or missing parts before a defective batch is produced.<\/p>\n<h2 id=\"prevent-defects-and-verify-weld-quality\" class=\"atx\">Prevent Defects and Verify Weld Quality<\/h2>\n<p>Visual checks are never enough to guarantee structural integrity. Implement rigorous testing and monitoring to catch hidden defects before parts reach your customers.<\/p>\n<h3 id=\"cold-welds-and-small-nuggets\" class=\"atx\">Cold Welds and Small Nuggets<\/h3>\n<p>Cold welds are the most dangerous defect in sheet metal assembly because the joint appears fully formed on the outside but lacks internal fusion.<\/p>\n<p>Common causes include low current, worn (mushroomed) electrode tips, heavy surface contamination (like oil or heavy mill scale), and current shunting through adjacent welds. Because a cold weld leaves a normal-looking indentation on the metal surface, <strong>visual inspection cannot reliably identify it.<\/strong> Detecting cold welds requires strict adherence to destructive testing schedules and in-process current monitoring.<\/p>\n<h3 id=\"expulsion-indentation-and-electrode-sticking\" class=\"atx\">Expulsion, Indentation, and Electrode Sticking<\/h3>\n<p>Expulsion is a visible indicator of process instability. It is primarily caused by excessive current, delayed hold times, low electrode force, or poor sheet fit-up that prevents the electrodes from properly containing the molten pool.<\/p>\n<p>Visible expulsion does not mean the weld is stronger; in fact, the loss of metal often results in deep electrode marks, severe assembly distortion, and a weaker overall joint. For coated materials like galvanized steel, excessive heat also causes the zinc to alloy with the copper tip, leading to severe electrode sticking and part deformation upon release.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a89ca73 elementor-widget elementor-widget-html\" data-id=\"a89ca73\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div style=\"\r\n  width: 100%;\r\n  max-width: 100%;\r\n  margin: 24px 0;\r\n  overflow-x: auto;\r\n  font-family: Arial, Helvetica, sans-serif;\r\n  -webkit-overflow-scrolling: touch;\r\n\">\r\n  <table style=\"\r\n    width: 100%;\r\n    min-width: 760px;\r\n    margin: 0;\r\n    border-collapse: collapse;\r\n    table-layout: fixed;\r\n    background-color: #ffffff;\r\n    color: #111111;\r\n    font-family: Arial, Helvetica, sans-serif;\r\n    font-size: 16px;\r\n    line-height: 1.45;\r\n  \">\r\n    <thead>\r\n      <tr>\r\n        <th style=\"\r\n          width: 33%;\r\n          padding: 12px 10px;\r\n          border: 1px solid #222222;\r\n          border-bottom: 3px solid #111111;\r\n          background-color: #ffffff;\r\n          color: #111111;\r\n          font-size: 16px;\r\n          font-weight: 700;\r\n          line-height: 1.35;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Defect\r\n        <\/th>\r\n\r\n        <th style=\"\r\n          width: 33%;\r\n          padding: 12px 10px;\r\n          border: 1px solid #222222;\r\n          border-bottom: 3px solid #111111;\r\n          background-color: #ffffff;\r\n          color: #111111;\r\n          font-size: 16px;\r\n          font-weight: 700;\r\n          line-height: 1.35;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Primary Cause\r\n        <\/th>\r\n\r\n        <th style=\"\r\n          width: 34%;\r\n          padding: 12px 10px;\r\n          border: 1px solid #222222;\r\n          border-bottom: 3px solid #111111;\r\n          background-color: #ffffff;\r\n          color: #111111;\r\n          font-size: 16px;\r\n          font-weight: 700;\r\n          line-height: 1.35;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          First Corrective Action\r\n        <\/th>\r\n      <\/tr>\r\n    <\/thead>\r\n\r\n    <tbody>\r\n      <tr>\r\n        <td style=\"\r\n          padding: 13px 10px;\r\n          border: 1px solid #222222;\r\n          background-color: #ffffff;\r\n          color: #111111;\r\n          font-weight: 700;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Cold Weld \/ No Fusion\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 13px 10px;\r\n          border: 1px solid #222222;\r\n          background-color: #ffffff;\r\n          color: #222222;\r\n          font-weight: 400;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Insufficient current density\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 13px 10px;\r\n          border: 1px solid #222222;\r\n          background-color: #ffffff;\r\n          color: #222222;\r\n          font-weight: 400;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Check tip for mushrooming; dress tip or increase current.\r\n        <\/td>\r\n      <\/tr>\r\n\r\n      <tr>\r\n        <td style=\"\r\n          padding: 13px 10px;\r\n          border: 1px solid #222222;\r\n          background-color: #ffffff;\r\n          color: #111111;\r\n          font-weight: 700;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Heavy Expulsion\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 13px 10px;\r\n          border: 1px solid #222222;\r\n          background-color: #ffffff;\r\n          color: #222222;\r\n          font-weight: 400;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Force too low or current too high\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 13px 10px;\r\n          border: 1px solid #222222;\r\n          background-color: #ffffff;\r\n          color: #222222;\r\n          font-weight: 400;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Increase electrode force; verify parts sit flat in fixture.\r\n        <\/td>\r\n      <\/tr>\r\n\r\n      <tr>\r\n        <td style=\"\r\n          padding: 13px 10px;\r\n          border: 1px solid #222222;\r\n          background-color: #ffffff;\r\n          color: #111111;\r\n          font-weight: 700;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Deep Indentation\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 13px 10px;\r\n          border: 1px solid #222222;\r\n          background-color: #ffffff;\r\n          color: #222222;\r\n          font-weight: 400;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Excessive heat or excessive force\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 13px 10px;\r\n          border: 1px solid #222222;\r\n          background-color: #ffffff;\r\n          color: #222222;\r\n          font-weight: 400;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Decrease current\/weld time; verify correct tip diameter.\r\n        <\/td>\r\n      <\/tr>\r\n\r\n      <tr>\r\n        <td style=\"\r\n          padding: 13px 10px;\r\n          border: 1px solid #222222;\r\n          background-color: #ffffff;\r\n          color: #111111;\r\n          font-weight: 700;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Electrode Sticking\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 13px 10px;\r\n          border: 1px solid #222222;\r\n          background-color: #ffffff;\r\n          color: #222222;\r\n          font-weight: 400;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Coating buildup (brass formation)\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 13px 10px;\r\n          border: 1px solid #222222;\r\n          background-color: #ffffff;\r\n          color: #222222;\r\n          font-weight: 400;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Implement tip dressing; optimize cooling water flow.\r\n        <\/td>\r\n      <\/tr>\r\n\r\n      <tr>\r\n        <td style=\"\r\n          padding: 13px 10px;\r\n          border: 1px solid #222222;\r\n          background-color: #ffffff;\r\n          color: #111111;\r\n          font-weight: 700;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Edge Blowout\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 13px 10px;\r\n          border: 1px solid #222222;\r\n          background-color: #ffffff;\r\n          color: #222222;\r\n          font-weight: 400;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Weld placed too close to flange edge\r\n        <\/td>\r\n\r\n        <td style=\"\r\n          padding: 13px 10px;\r\n          border: 1px solid #222222;\r\n          background-color: #ffffff;\r\n          color: #222222;\r\n          font-weight: 400;\r\n          text-align: left;\r\n          vertical-align: middle;\r\n        \">\r\n          Adjust weld location or increase flange width.\r\n        <\/td>\r\n      <\/tr>\r\n    <\/tbody>\r\n  <\/table>\r\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a9de0f1 elementor-widget elementor-widget-text-editor\" data-id=\"a9de0f1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3 id=\"inspection-testing-and-production-approval\" class=\"atx\">Inspection, Testing, and Production Approval<\/h3>\n<p>Quality verification occurs in two phases: pre-production setup and in-process monitoring.<\/p>\n<p><strong>Destructive Testing (Setup &amp; Verification):<\/strong><\/p>\n<p>Before a production run begins, the welding schedule must be validated through destructive methods.<\/p>\n<ul>\n<li><strong>Peel and Chisel Tests:<\/strong> Physically tearing the welded sheets apart. A successful weld will pull a &#8220;button&#8221; of solid metal out of one sheet, proving the weld is stronger than the base material.<\/li>\n<li><strong>Tensile Shear and Push-Out Tests:<\/strong> Laboratory tests used to verify that the joint meets the precise load requirements defined in the engineering drawings.<\/li>\n<li><strong>Metallographic Cross-Sections:<\/strong> Cutting and etching the weld to inspect internal nugget diameter and check for micro-cracking.<\/li>\n<\/ul>\n<p><strong>Non-Destructive &amp; In-Process Inspection:<\/strong><\/p>\n<p>During mass production, operators rely on visual inspection to catch part deformation, severe indentation, or surface burning. Simultaneously, automated ultrasonic inspection or dynamic resistance analysis monitors the internal integrity of the joint without destroying the final assembly.<\/p>\n<p>Transparency is key to international supply chains. We provide complete metallurgical cross-section reports and destructive test logs alongside our initial sample shipments, ensuring engineering teams across the globe have verifiable proof of joint integrity before authorizing mass production.<\/p>\n<h2 id=\"conclusion\" class=\"atx\">Conclusion<\/h2>\n<p>Electric resistance welding is just one piece of the puzzle. Whether you are transitioning a custom sheet metal enclosure from rapid prototyping directly into mass manufacturing, or integrating CNC machined components with welded assemblies, success requires a fabrication partner who understands the mechanical realities of the factory floor.<\/p>\n<p>Every engineering decision\u2014from selecting the right alloy to respecting minimum flange widths\u2014directly impacts final production costs, assembly speed, and joint integrity. Do not let poor fit-up or process instability delay your supply chain.<\/p>\n<p><strong>Ready to move your project into production?<\/strong><\/p>\n<p><a href=\"https:\/\/shengenfab.com\/contact\/\" target=\"_blank\" rel=\"noopener\">Submit your STEP files or technical drawings to Shengen today<\/a> for a comprehensive Design for Manufacturability (DFM) review. We will evaluate your designs for weldability, tolerance stack-ups, and cost-efficiency to ensure a seamless transition from concept to finished assembly.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-3dcc885b\" data-id=\"3dcc885b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-548dd73e elementor-widget elementor-widget-heading\" data-id=\"548dd73e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Hey, I'm Kevin Lee<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3fdb7a16 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"3fdb7a16\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"640\" src=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2023\/12\/Kevin-Lee.webp\" class=\"attachment-large size-large wp-image-6422\" alt=\"Kevin Lee\" srcset=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2023\/12\/Kevin-Lee.webp 1024w, https:\/\/shengenfab.com\/wp-content\/uploads\/2023\/12\/Kevin-Lee-300x240.webp 300w, https:\/\/shengenfab.com\/wp-content\/uploads\/2023\/12\/Kevin-Lee-768x614.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4744ce14 elementor-widget elementor-widget-text-editor\" data-id=\"4744ce14\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u00a0<\/p><p>For the past 10 years, I&#8217;ve been immersed in various forms of sheet metal fabrication, sharing cool insights here from my experiences across diverse workshops.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4466dd94 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"4466dd94\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/shengenfab.com\/about-author\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">ABOUT ME<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-43b4d0a9 elementor-widget elementor-widget-heading\" data-id=\"43b4d0a9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"> Get in touch<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-31a089e7 elementor-button-align-stretch elementor-widget elementor-widget-global elementor-global-893 elementor-widget-form\" data-id=\"31a089e7\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;step_next_label&quot;:&quot;\\u4e0b\\u4e00\\u4e2a&quot;,&quot;step_previous_label&quot;:&quot;\\u4e0a\\u4e00\\u4e2a&quot;,&quot;sticky&quot;:&quot;top&quot;,&quot;sticky_parent&quot;:&quot;yes&quot;,&quot;sticky_offset&quot;:76,&quot;sticky_effects_offset&quot;:75,&quot;button_width&quot;:&quot;100&quot;,&quot;step_type&quot;:&quot;number_text&quot;,&quot;step_icon_shape&quot;:&quot;circle&quot;,&quot;sticky_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;,&quot;mobile&quot;],&quot;sticky_anchor_link_offset&quot;:0}\" data-widget_type=\"form.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<form class=\"elementor-form\" method=\"post\" name=\"\u65b0\u8868\u5355\" aria-label=\"\u65b0\u8868\u5355\">\n\t\t\t<input type=\"hidden\" name=\"post_id\" value=\"11690\"\/>\n\t\t\t<input type=\"hidden\" name=\"form_id\" value=\"31a089e7\"\/>\n\t\t\t<input type=\"hidden\" name=\"referer_title\" value=\"\" \/>\n\n\t\t\t\n\t\t\t<div class=\"elementor-form-fields-wrapper elementor-labels-\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-name elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-name\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tName\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[name]\" id=\"form-field-name\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Name\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-email elementor-field-group elementor-column elementor-field-group-email elementor-col-100 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-email\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tEmail\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"email\" name=\"form_fields[email]\" id=\"form-field-email\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Email\" required=\"required\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-tel elementor-field-group elementor-column elementor-field-group-field_59b0978 elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_59b0978\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tPhone\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t<input size=\"1\" type=\"tel\" name=\"form_fields[field_59b0978]\" id=\"form-field-field_59b0978\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Phone\" pattern=\"[0-9()#&amp;+*-=.]+\" title=\"Only numbers and phone characters (#, -, *, etc) are accepted.\">\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-textarea elementor-field-group elementor-column elementor-field-group-message elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-message\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tMessage\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t<textarea class=\"elementor-field-textual elementor-field  elementor-size-sm\" name=\"form_fields[message]\" id=\"form-field-message\" rows=\"4\" placeholder=\"Message\"><\/textarea>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-upload elementor-field-group elementor-column elementor-field-group-field_3054d6d elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_3054d6d\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tUpload files\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t<input type=\"file\" name=\"form_fields[field_3054d6d]\" id=\"form-field-field_3054d6d\" class=\"elementor-field elementor-size-sm  elementor-upload-field\">\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-recaptcha_v3 elementor-field-group elementor-column elementor-field-group-field_7cab1df elementor-col-100 recaptcha_v3-inline\">\n\t\t\t\t\t<div class=\"elementor-field\" id=\"form-field-field_7cab1df\"><div class=\"elementor-g-recaptcha\" data-sitekey=\"6Ld96zomAAAAAFa92bnUaWtgdyyax_AThlz6udzh\" data-type=\"v3\" data-action=\"Form\" data-badge=\"inline\" data-size=\"invisible\"><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-group elementor-column elementor-field-type-submit elementor-col-100 e-form__buttons\">\n\t\t\t\t\t<button class=\"elementor-button elementor-size-sm\" type=\"submit\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Get Instant Quote<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/button>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/form>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-203ddc5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"203ddc5\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-743b1db6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"743b1db6\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7e565deb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7e565deb\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-430caaff custom-ele-section-css elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"430caaff\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-top-column elementor-element elementor-element-5af07506\" data-id=\"5af07506\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-509c6c31\" data-id=\"509c6c31\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-6a327dba custom-ele-section-css elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6a327dba\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-2aa25ec9\" data-id=\"2aa25ec9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-34d1b054 elementor-widget elementor-widget-image\" data-id=\"34d1b054\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"640\" src=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2023\/12\/Kevin-Lee.webp\" class=\"attachment-large size-large wp-image-6422\" alt=\"Kevin Lee\" srcset=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2023\/12\/Kevin-Lee.webp 1024w, https:\/\/shengenfab.com\/wp-content\/uploads\/2023\/12\/Kevin-Lee-300x240.webp 300w, https:\/\/shengenfab.com\/wp-content\/uploads\/2023\/12\/Kevin-Lee-768x614.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-30c8ac29\" data-id=\"30c8ac29\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-18b45cd7 elementor-widget elementor-widget-heading\" data-id=\"18b45cd7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Kevin Lee<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6843dd5a elementor-widget elementor-widget-text-editor\" data-id=\"6843dd5a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>I have over ten years of professional experience in sheet metal fabrication, specializing in laser cutting, bending, welding, and surface treatment techniques. As the Technical Director at Shengen, I am committed to solving complex manufacturing challenges and driving innovation and quality in each project.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-top-column elementor-element elementor-element-594ae057\" data-id=\"594ae057\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-541b40a8 custom-ele-section-css elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"541b40a8\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7a9783fc\" data-id=\"7a9783fc\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-730ae1fc elementor-widget elementor-widget-heading\" data-id=\"730ae1fc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Related Resource<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-643e36fc uael-post__link-complete-yes uael-equal__height-yes elementor-widget elementor-widget-uael-posts\" data-id=\"643e36fc\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;classic_slides_to_show&quot;:4,&quot;classic_slides_to_show_tablet&quot;:2,&quot;classic_slides_to_show_mobile&quot;:1,&quot;classic_pagination_type&quot;:&quot;ajax&quot;,&quot;classic_show_filters&quot;:&quot;no&quot;}\" data-widget_type=\"uael-posts.classic\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"uael-post__header\">\n\t\t\t\t\t<\/div>\n\t\t<div class=\"uael-post__body\">\n\t\t\t\n\t\t\n\t\t<div class=\"uael-blog-terms-position- uael-post-image-top uael-post-grid uael-posts\" data-query-type=\"custom\" data-structure=\"normal\" data-layout=\"\" data-page=\"11690\" data-skin=\"classic\" data-filter-default=\"\" data-offset-top=\"30\" >\n\n\t\t\t\t\t\t\t<div class=\"uael-post-grid__inner uael-post__columns-4 uael-post__columns-tablet-2 uael-post__columns-mobile-1\">\n\t\t\t\n<div class=\"uael-post-wrapper   blog \">\n\t<div class=\"uael-post__bg-wrap uael-bg-wrap-disabled \">\n\n\t\t\t\t\t<a href=\"https:\/\/shengenfab.com\/fr\/laser-texturing-for-metals\/\" target=\"_self\" class=\"uael-post__complete-box-overlay\" aria-label=\"Link Complete Box\"><\/a>\n\t\t\t\t\n\t\t<div class=\"uael-post__inner-wrap uael-inner-wrap-disabled\">\n\n\t\t\t\t<div class=\"uael-post__thumbnail\">\n\t\t\t\n\t\t\t<a href=\"https:\/\/shengenfab.com\/fr\/laser-texturing-for-metals\/\" target=\"_blank\" title=\"Laser Texturing for Metals: Prep, DFM &amp; Cost Control\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"391\" src=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/06\/Why-Surface-Condition-Matters-Before-Coating-or-Bonding.jpg\" class=\"attachment-full size-full wp-image-25222\" alt=\"Why Surface Condition Matters Before Coating or Bonding\" srcset=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/06\/Why-Surface-Condition-Matters-Before-Coating-or-Bonding.jpg 700w, https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/06\/Why-Surface-Condition-Matters-Before-Coating-or-Bonding-300x168.jpg 300w, https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/06\/Why-Surface-Condition-Matters-Before-Coating-or-Bonding-18x10.jpg 18w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/a>\n\t\t\t\t\t<\/div>\n\t\t\n\t\t\t\n\t\t\t<div class=\"uael-post__content-wrap uael-content-wrap-disabled\">\n\t\t\t\t\t<h3 class=\"uael-post__title\">\n\n\t\t\n\t\t\t\t\t\t<a href=\"https:\/\/shengenfab.com\/fr\/laser-texturing-for-metals\/\" target=\"_blank\">\n\t\t\t\tLaser Texturing for Metals: Prep, DFM &amp; Cost Control\t\t\t<\/a>\n\n\t\t\t\t<\/h3>\n\t\t\t\t\t<div class=\"uael-post__meta-data\">\n\t\t\t\t\t<span class=\"uael-post__date\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fa-calendar\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M12 192h424c6.6 0 12 5.4 12 12v260c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V204c0-6.6 5.4-12 12-12zm436-44v-36c0-26.5-21.5-48-48-48h-48V12c0-6.6-5.4-12-12-12h-40c-6.6 0-12 5.4-12 12v52H160V12c0-6.6-5.4-12-12-12h-40c-6.6 0-12 5.4-12 12v52H48C21.5 64 0 85.5 0 112v36c0 6.6 5.4 12 12 12h424c6.6 0 12-5.4 12-12z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\n\t\t\t29 juin 2026\t\t<\/span>\n\t\t\t\t<span class=\"uael-post__comments\">\n\t\t\t\t\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fa-comments\" viewBox=\"0 0 576 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 192c0-88.4-93.1-160-208-160S0 103.6 0 192c0 34.3 14.1 65.9 38 92-13.4 30.2-35.5 54.2-35.8 54.5-2.2 2.3-2.8 5.7-1.5 8.7S4.8 352 8 352c36.6 0 66.9-12.3 88.7-25 32.2 15.7 70.3 25 111.3 25 114.9 0 208-71.6 208-160zm122 220c23.9-26 38-57.7 38-92 0-66.9-53.5-124.2-129.3-148.1.9 6.6 1.3 13.3 1.3 20.1 0 105.9-107.7 192-240 192-10.8 0-21.3-.8-31.7-1.9C207.8 439.6 281.8 480 368 480c41 0 79.1-9.2 111.3-25 21.8 12.7 52.1 25 88.7 25 3.2 0 6.1-1.9 7.3-4.8 1.3-2.9.7-6.3-1.5-8.7-.3-.3-22.4-24.2-35.8-54.5z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\tAucun commentaire\t\t<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t\t<a class=\"uael-post__read-more elementor-button\" href=\"https:\/\/shengenfab.com\/fr\/laser-texturing-for-metals\/\" target=\"_blank\" aria-labelledby=\"uael-post-25210\">\n\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-icon elementor-align-icon-left\">\n\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"elementor-button-text\" id=uael-post-25210>Readmore<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\n\t<\/div>\n\n<\/div>\n\n<div class=\"uael-post-wrapper   blog \">\n\t<div class=\"uael-post__bg-wrap uael-bg-wrap-disabled \">\n\n\t\t\t\t\t<a href=\"https:\/\/shengenfab.com\/fr\/electro-galvanized-steel\/\" target=\"_self\" class=\"uael-post__complete-box-overlay\" aria-label=\"Link Complete Box\"><\/a>\n\t\t\t\t\n\t\t<div class=\"uael-post__inner-wrap uael-inner-wrap-disabled\">\n\n\t\t\t\t<div class=\"uael-post__thumbnail\">\n\t\t\t\n\t\t\t<a href=\"https:\/\/shengenfab.com\/fr\/electro-galvanized-steel\/\" target=\"_blank\" title=\"Electro-Galvanized Steel: Fabrication &amp; Selection Guide\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"394\" src=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/06\/Why-Electro-Galvanized-Steel-Is-Chosen-for-Precision-Parts.jpg\" class=\"attachment-full size-full wp-image-25184\" alt=\"Why Electro Galvanized Steel Is Chosen for Precision Parts\" srcset=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/06\/Why-Electro-Galvanized-Steel-Is-Chosen-for-Precision-Parts.jpg 700w, https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/06\/Why-Electro-Galvanized-Steel-Is-Chosen-for-Precision-Parts-300x169.jpg 300w, https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/06\/Why-Electro-Galvanized-Steel-Is-Chosen-for-Precision-Parts-18x10.jpg 18w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/a>\n\t\t\t\t\t<\/div>\n\t\t\n\t\t\t\n\t\t\t<div class=\"uael-post__content-wrap uael-content-wrap-disabled\">\n\t\t\t\t\t<h3 class=\"uael-post__title\">\n\n\t\t\n\t\t\t\t\t\t<a href=\"https:\/\/shengenfab.com\/fr\/electro-galvanized-steel\/\" target=\"_blank\">\n\t\t\t\tElectro-Galvanized Steel: Fabrication &amp; Selection Guide\t\t\t<\/a>\n\n\t\t\t\t<\/h3>\n\t\t\t\t\t<div class=\"uael-post__meta-data\">\n\t\t\t\t\t<span class=\"uael-post__date\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fa-calendar\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M12 192h424c6.6 0 12 5.4 12 12v260c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V204c0-6.6 5.4-12 12-12zm436-44v-36c0-26.5-21.5-48-48-48h-48V12c0-6.6-5.4-12-12-12h-40c-6.6 0-12 5.4-12 12v52H160V12c0-6.6-5.4-12-12-12h-40c-6.6 0-12 5.4-12 12v52H48C21.5 64 0 85.5 0 112v36c0 6.6 5.4 12 12 12h424c6.6 0 12-5.4 12-12z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\n\t\t\t12 juin 2026\t\t<\/span>\n\t\t\t\t<span class=\"uael-post__comments\">\n\t\t\t\t\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fa-comments\" viewBox=\"0 0 576 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 192c0-88.4-93.1-160-208-160S0 103.6 0 192c0 34.3 14.1 65.9 38 92-13.4 30.2-35.5 54.2-35.8 54.5-2.2 2.3-2.8 5.7-1.5 8.7S4.8 352 8 352c36.6 0 66.9-12.3 88.7-25 32.2 15.7 70.3 25 111.3 25 114.9 0 208-71.6 208-160zm122 220c23.9-26 38-57.7 38-92 0-66.9-53.5-124.2-129.3-148.1.9 6.6 1.3 13.3 1.3 20.1 0 105.9-107.7 192-240 192-10.8 0-21.3-.8-31.7-1.9C207.8 439.6 281.8 480 368 480c41 0 79.1-9.2 111.3-25 21.8 12.7 52.1 25 88.7 25 3.2 0 6.1-1.9 7.3-4.8 1.3-2.9.7-6.3-1.5-8.7-.3-.3-22.4-24.2-35.8-54.5z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\tAucun 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uael-inner-wrap-disabled\">\n\n\t\t\t\t<div class=\"uael-post__thumbnail\">\n\t\t\t\n\t\t\t<a href=\"https:\/\/shengenfab.com\/fr\/punching-vs-laser-cutting\/\" target=\"_blank\" title=\"Punching vs Laser Cutting: Cost, Speed and DFM Trade-Offs\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"391\" src=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/05\/Quick-Process-Selection-Guide-for-Punching-vs-Laser-Cutting-in-Manufacturing-Decisions.jpg\" class=\"attachment-full size-full wp-image-24795\" alt=\"Quick Process Selection Guide for Punching vs Laser Cutting in Manufacturing Decisions\" srcset=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/05\/Quick-Process-Selection-Guide-for-Punching-vs-Laser-Cutting-in-Manufacturing-Decisions.jpg 700w, https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/05\/Quick-Process-Selection-Guide-for-Punching-vs-Laser-Cutting-in-Manufacturing-Decisions-300x168.jpg 300w, https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/05\/Quick-Process-Selection-Guide-for-Punching-vs-Laser-Cutting-in-Manufacturing-Decisions-18x10.jpg 18w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/a>\n\t\t\t\t\t<\/div>\n\t\t\n\t\t\t\n\t\t\t<div class=\"uael-post__content-wrap uael-content-wrap-disabled\">\n\t\t\t\t\t<h3 class=\"uael-post__title\">\n\n\t\t\n\t\t\t\t\t\t<a href=\"https:\/\/shengenfab.com\/fr\/punching-vs-laser-cutting\/\" target=\"_blank\">\n\t\t\t\tPunching vs Laser Cutting: Cost, Speed and DFM Trade-Offs\t\t\t<\/a>\n\n\t\t\t\t<\/h3>\n\t\t\t\t\t<div class=\"uael-post__meta-data\">\n\t\t\t\t\t<span class=\"uael-post__date\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fa-calendar\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M12 192h424c6.6 0 12 5.4 12 12v260c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V204c0-6.6 5.4-12 12-12zm436-44v-36c0-26.5-21.5-48-48-48h-48V12c0-6.6-5.4-12-12-12h-40c-6.6 0-12 5.4-12 12v52H160V12c0-6.6-5.4-12-12-12h-40c-6.6 0-12 5.4-12 12v52H48C21.5 64 0 85.5 0 112v36c0 6.6 5.4 12 12 12h424c6.6 0 12-5.4 12-12z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\n\t\t\t19 mai 2026\t\t<\/span>\n\t\t\t\t<span class=\"uael-post__comments\">\n\t\t\t\t\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fa-comments\" viewBox=\"0 0 576 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 192c0-88.4-93.1-160-208-160S0 103.6 0 192c0 34.3 14.1 65.9 38 92-13.4 30.2-35.5 54.2-35.8 54.5-2.2 2.3-2.8 5.7-1.5 8.7S4.8 352 8 352c36.6 0 66.9-12.3 88.7-25 32.2 15.7 70.3 25 111.3 25 114.9 0 208-71.6 208-160zm122 220c23.9-26 38-57.7 38-92 0-66.9-53.5-124.2-129.3-148.1.9 6.6 1.3 13.3 1.3 20.1 0 105.9-107.7 192-240 192-10.8 0-21.3-.8-31.7-1.9C207.8 439.6 281.8 480 368 480c41 0 79.1-9.2 111.3-25 21.8 12.7 52.1 25 88.7 25 3.2 0 6.1-1.9 7.3-4.8 1.3-2.9.7-6.3-1.5-8.7-.3-.3-22.4-24.2-35.8-54.5z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\tAucun commentaire\t\t<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t\t<a class=\"uael-post__read-more elementor-button\" href=\"https:\/\/shengenfab.com\/fr\/punching-vs-laser-cutting\/\" target=\"_blank\" aria-labelledby=\"uael-post-24793\">\n\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-icon elementor-align-icon-left\">\n\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"elementor-button-text\" id=uael-post-24793>Readmore<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\n\t<\/div>\n\n<\/div>\n\n<div class=\"uael-post-wrapper   blog \">\n\t<div class=\"uael-post__bg-wrap uael-bg-wrap-disabled \">\n\n\t\t\t\t\t<a href=\"https:\/\/shengenfab.com\/fr\/fillet-machining\/\" target=\"_self\" class=\"uael-post__complete-box-overlay\" aria-label=\"Link Complete Box\"><\/a>\n\t\t\t\t\n\t\t<div class=\"uael-post__inner-wrap uael-inner-wrap-disabled\">\n\n\t\t\t\t<div class=\"uael-post__thumbnail\">\n\t\t\t\n\t\t\t<a href=\"https:\/\/shengenfab.com\/fr\/fillet-machining\/\" target=\"_blank\" title=\"Fillet Machining: What Drives Cost and Part Quality\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"419\" src=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/04\/Why-Tight-Internal-Fillets-Get-Expensive.jpg\" class=\"attachment-full size-full wp-image-24569\" alt=\"Why Tight Internal Fillets Get Expensive\" srcset=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/04\/Why-Tight-Internal-Fillets-Get-Expensive.jpg 750w, https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/04\/Why-Tight-Internal-Fillets-Get-Expensive-300x168.jpg 300w, https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/04\/Why-Tight-Internal-Fillets-Get-Expensive-18x10.jpg 18w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/a>\n\t\t\t\t\t<\/div>\n\t\t\n\t\t\t\n\t\t\t<div class=\"uael-post__content-wrap uael-content-wrap-disabled\">\n\t\t\t\t\t<h3 class=\"uael-post__title\">\n\n\t\t\n\t\t\t\t\t\t<a href=\"https:\/\/shengenfab.com\/fr\/fillet-machining\/\" target=\"_blank\">\n\t\t\t\tFillet Machining: What Drives Cost and Part Quality\t\t\t<\/a>\n\n\t\t\t\t<\/h3>\n\t\t\t\t\t<div class=\"uael-post__meta-data\">\n\t\t\t\t\t<span class=\"uael-post__date\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fa-calendar\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M12 192h424c6.6 0 12 5.4 12 12v260c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V204c0-6.6 5.4-12 12-12zm436-44v-36c0-26.5-21.5-48-48-48h-48V12c0-6.6-5.4-12-12-12h-40c-6.6 0-12 5.4-12 12v52H160V12c0-6.6-5.4-12-12-12h-40c-6.6 0-12 5.4-12 12v52H48C21.5 64 0 85.5 0 112v36c0 6.6 5.4 12 12 12h424c6.6 0 12-5.4 12-12z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\n\t\t\t13 avril 2026\t\t<\/span>\n\t\t\t\t<span class=\"uael-post__comments\">\n\t\t\t\t\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fa-comments\" viewBox=\"0 0 576 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 192c0-88.4-93.1-160-208-160S0 103.6 0 192c0 34.3 14.1 65.9 38 92-13.4 30.2-35.5 54.2-35.8 54.5-2.2 2.3-2.8 5.7-1.5 8.7S4.8 352 8 352c36.6 0 66.9-12.3 88.7-25 32.2 15.7 70.3 25 111.3 25 114.9 0 208-71.6 208-160zm122 220c23.9-26 38-57.7 38-92 0-66.9-53.5-124.2-129.3-148.1.9 6.6 1.3 13.3 1.3 20.1 0 105.9-107.7 192-240 192-10.8 0-21.3-.8-31.7-1.9C207.8 439.6 281.8 480 368 480c41 0 79.1-9.2 111.3-25 21.8 12.7 52.1 25 88.7 25 3.2 0 6.1-1.9 7.3-4.8 1.3-2.9.7-6.3-1.5-8.7-.3-.3-22.4-24.2-35.8-54.5z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\tAucun commentaire\t\t<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t\t<a class=\"uael-post__read-more elementor-button\" href=\"https:\/\/shengenfab.com\/fr\/fillet-machining\/\" target=\"_blank\" aria-labelledby=\"uael-post-24568\">\n\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-icon elementor-align-icon-left\">\n\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"elementor-button-text\" id=uael-post-24568>Readmore<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\n\t<\/div>\n\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\n\t\t<\/div>\n\n\t\t\t\t\t\t<\/div>\n\t\t<div class=\"uael-post__footer\">\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Le soudage par r\u00e9sistance \u00e9lectrique (ERW) est un proc\u00e9d\u00e9 de fabrication qui permet de souder des m\u00e9taux gr\u00e2ce \u00e0 la chaleur localis\u00e9e g\u00e9n\u00e9r\u00e9e par la r\u00e9sistance \u00e9lectrique et \u00e0 la pression m\u00e9canique. 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