51吃瓜

Sheet metal is a comprehensive cold working process for metal sheets, including cutting, punching/cutting/composite, folding, welding, riveting, splicing, forming (such as automotive body), etc. ????? ?????????? ????????????? ??? ??? ?? ???????? ??? ??? ???????? ???????????? ??? ?????????.

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Sheet metal is generally made by manual or die stamping some metal sheets to produce plastic deformation, forming the desired shape and size, and can be further welded or processed with a small amount of mechanical processing to form more complex parts. Sheet Metal Processing is called sheet metal processing, and the main processes include cutting, bending, shaping, welding, riveting, etc., which require a certain amount of geometric knowledge. Sheet metal parts are thin metal parts that can be processed through stamping, bending, stretching, and other methods. For example, the outer iron shell of a car is a sheet metal part.

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