{"id":10363,"date":"2024-08-04T23:25:43","date_gmt":"2024-08-05T07:25:43","guid":{"rendered":"https:\/\/shengenfab.com\/?p=10363"},"modified":"2024-08-05T00:06:38","modified_gmt":"2024-08-05T08:06:38","slug":"additive-manufacturing-vs-subtractive-manufacturing","status":"publish","type":"post","link":"https:\/\/shengenfab.com\/en_gb\/additive-manufacturing-vs-subtractive-manufacturing\/","title":{"rendered":"Additive Manufacturing vs Subtractive Manufacturing"},"content":{"rendered":"
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Do you know which manufacturing process is better for your product: subtractive or additive?\u00a0Understanding the differences between these two processes will help you make informed decisions about your next project.\u00a0We’ll explore their differences and see how they can affect your production goals.<\/p>

Subtractive manufacturing involves removing the material from a block to achieve a specific shape.\u00a0On the contrary, additive manufacturing creates objects layer-by-layer, usually using 3D printer technology.\u00a0Each has its strengths–subtractive offers precision, while additive allows for complex geometries with less material waste.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Additive Manufacturing Basics<\/h2>

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Additive Manufacturing, or AM, is often synonymous with 3D Printing<\/a>.\u00a0This method creates complex, lightweight, and detailed structures by building up digital designs layer by layer.<\/p>

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What is an Additive Manufacturing Process?<\/h3>

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This process starts with a digital design, typically created using Computer-Aided Design software.\u00a0The model is then cut into thin layers and printed individually to create a three-dimensional object.\u00a0The layers are fused until the object is completed.<\/p>

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Types of Additive Manufacturing Technologies<\/h3>

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Additive Manufacturing comprises several technologies, each suited to different materials and applications.<\/p>

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Stereolithography (SLA)<\/h4>

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SLA technique uses an ultraviolet laser to solidify the photopolymer layer by layer.\u00a0This technique is known as a high-precision and smooth finish.<\/p>

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Fused Deposition Modeling<\/h4>

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FDM is a process that involves extruding filaments of thermoplastic through a heated nozzle and laying material down in layers.<\/p>

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Selective Laser Sintering<\/h4>

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SLS uses a laser to sinter the powdered materials, forming a solid structure.<\/p>

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Direct Metal Laser Sintering<\/h4>

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DMLS is similar to SLS because it uses laser sintering powdered metals to create dense and complex metal components.<\/p>

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Subtractive Manufacturing Basics<\/h2>

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Subtractive manufacturing involves hollowing out or removing material sections from a solid object, like metal or plastic, to create a final product.<\/p>

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What is the Subtractive Manufacturing Process?<\/h3>

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The process begins with a solid rod, sheet, or block of material, which is then precisely shaped using different cutting and milling instruments.\u00a0Computer Numerical Control machines are often used to guide these tools. This allows for high precision, efficiency, and repeatability.<\/p>

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Common Techniques<\/h3>

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Subtractive Manufacturing encompasses a variety of techniques that are each tailored to specific materials and applications.<\/p>

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CNC Machining<\/h4>

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CNC Machining<\/a> uses computer-controlled machines to remove material with high precision.<\/p>

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Laser Cutting<\/h4>

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Laser cutting<\/a> is cutting or engraving a material using a laser beam.<\/p>

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Milling<\/h4>

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The milling process<\/a> involves rotating cutting instruments that remove material.\u00a0Milling can create many features, including contours, slots, and holes.<\/p>

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Lathe<\/h4>

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The material is shaped by rotating it against a cutting instrument.\u00a0This technique is used primarily for cylindrical parts and produces precise, consistent results.<\/p>

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Electrical Discharge Machining (EDM)<\/h4>

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EDM removes material using electrical discharges.\u00a0This method is highly effective when working with complex or intricate materials.<\/p>

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Advantages and disadvantages of additive manufacturing<\/h2>

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Benefits<\/h3>

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