Sheet stamping
A metal plastic processing method in which metal sheets and strips are stamped into various parts on the mold of a press. Generally, the sheet metal thickness of blanking parts is less than 10mm, and the thickness of formed parts is less than 20mm. For materials such as nickel-chromium steel, titanium alloys and magnesium alloys, hot stamping is sometimes used to reduce deformation resistance. Plate stamping has high productivity and can realize mechanization and automation; it has low cost and high product precision in mass production.
Sheet stamping includes shearing, punching, bending and stretching. The stamping performance of the sheet is measured by tensile, hardness, metallographic, cupping, cold bending and other tests. Before stamping, in addition to providing values such as yield strength, tensile strength, and elongation of the sheet, values such as strain hardening, thickness, and plane anisotropy should also be provided. Different processing methods should have different requirements for the above values in order to achieve the best stamping effect.
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