We regularly update articles related to the manufacturing industry.
CNC tapping is an automated process that creates internal threads in holes using a computer-controlled machine. CNC tapping utilizes a specialized tool known as a tap. The tap spins and moves into the hole at the right speed. The machine follows a set program, so every thread has the same depth and pitch.
Fourslide metal stamping is a forming method that uses four moving slides to shape metal. These slides sit around a central point and move in from four sides. Each one holds a tool that bends or cuts the metal strip. Sometimes, a vertical press head is added to facilitate additional shaping.
Salt spray testing, also known as salt fog testing, is a method used for corrosion testing. It exposes metal parts to a fine mist of saltwater solution inside a controlled chamber. The goal is to create an accelerated corrosive environment. This test helps evaluate how coatings, platings, and surface treatments withstand harsh conditions.
Machining is a subtractive process. It removes material from a solid block, often metal, to create specific shapes. This is done using cutting tools, grinding wheels, or electric discharge. Most machining is performed on machines such as lathes, mills, drills, and grinders.
Metal embossing is a process that creates raised or recessed designs on metal sheets. It uses male and female dies to press the metal with force. This forms shapes like logos, textures, or warning signs without cutting or removing material. Embossing enhances both appearance and surface grip and can be used for decorative or functional purposes.
Step turning is a turning method that creates two or more distinct diameters on a single round workpiece. It uses a lathe to cut along the axis at fixed points, removing material in steps.
What makes step turning unique is the sharp 90° shoulder between each diameter. This clean transition is the “step” that defines the process.
Press brake coining is a metal bending process that shapes sheet metal using very high pressure. The punch presses deeply into the metal, forcing it entirely into the die cavity. Unlike air bending, where the metal only partially contacts the tools, coining creates complete contact between the punch, metal, and die surface.
Nitrogen laser cutting uses high-pressure nitrogen gas to blow away molten material while preventing oxidation. This results in smooth, burr-free edges with no discoloration. It’s ideal for cutting stainless steel, aluminum, and other metals where appearance and precision matter. Unlike oxygen-assisted cuts, it produces cleaner finishes and helps prevent the need for secondary treatments.
Sheet metal setback is the distance from the bend’s apex to the start of the flange. It includes part of the bend radius and material thickness. This measurement helps define the amount of material used in the bend.
To make a plastic prototype, you can use several methods like 3D printing, CNC machining, or vacuum casting. Choose the process based on the part’s shape, quantity, and timeline. Start with a CAD model, select a material that matches your end-use needs, and work with a supplier or in-house tools to produce and refine the part.
Metal grooving removes material from a metal surface to create a recessed channel. These grooves can help with bending, joining, sealing, or guiding parts during assembly.
Grooves can be broad or narrow. They can be shallow or deep. Some are cut in a straight line. Others follow a curved or circular path. The shape depends on the job’s needs.
Low-volume CNC machining refers to the production of a limited number of parts using computer-controlled machines. The volume usually ranges from a single unit up to a few hundred pieces. These parts are made with tight tolerances and repeatable accuracy.
18/8 stainless steel is an alloy mainly made of iron, chromium, and nickel. Chromium provides rust resistance, while nickel helps maintain the metal’s stability and shine. The typical blend is 18% chromium and 8% nickel, balanced with iron and tiny amounts of other elements. These different elements might include carbon and manganese to add strength.
Metal Injection Molding (MIM) is a manufacturing method that uses metal powder and a plastic binder. First, the metal powder mixes with the binder to form a feedstock. This mix is injected into a mold, much like how plastic parts are manufactured.
Cold rolled steel stamping forms metal parts by pressing steel sheets into specific shapes using a die. The process happens at room temperature. This gives better dimensional control and surface quality. The steel used is first cold rolled—passed through rollers to reduce thickness and improve strength.
CNC milling costs vary based on material type, part design, quantity, machine time, and labor. On average, prices range from $50 to $150 per hour. Simpler aluminum parts cost less, while complex stainless steel parts or prototypes cost more. Knowing what affects the price helps you control it.
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