Although a bend gain may be tiny, failing to consider bend allowances in the initial design can throw a prototype way out of proportion. The small amount of material that this stretching adds to a part is known as a sheet metal bend gain. When a sheet of metal is bent into an angle, the outer part of the material gets stretched into a curve, while the inner part gets crushed into a V or U shape. Quick Recap: What’s a Sheet Metal Bend Gain? You’ve probably adjusted your CAD models for bend gains thousands of times before. If you’re a design engineer, you know that one of the most important DFM considerations for sheet metal fabrication is sheet metal bend gains. These processes deform and stretch the metal, altering the material length and/or thickness. Before a prototype becomes the complex structure an engineer designed it to be, it needs to be formed via bending, cutting, punching, and welding. The one thing all sheet metal parts have in common is that they start out flat. Last updated on September 12th, 2023 at 02:32 pm
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