Metal sheet processing is called sheet metal processing. For example, sheet metal is used to make chimneys, iron barrels, oil tanks, ventilation ducts, elbows, round heads, funnels, etc. The main processes include shearing, bending, buckling, bending, welding, riveting, etc., which require certain geometric knowledge. Sheet metal parts are thin plate hardware parts, that is, parts that can be processed by stamping, bending, stretching, etc. A general definition is a part whose thickness remains unchanged during the processing process. Corresponding are castings, forgings, machined parts, etc.
