Stainless steel lock case

he stamping part is a forming method of a workpiece (stamping part) of a desired shape and size by applying an external force to a plate, a strip, a pipe, a profile, and the like by a press and a die to cause plastic deformation or separation. Stamping and forging are the same plastic processing (or pressure processing), collectively called forging. The stamped blanks are mainly hot rolled and cold rolled steel sheets and strips.

FAQ handling

1, adhesion, scratches: due to the material rubbing with the punch or die to appear on the surface of the workpiece or mold;

2, burr: mainly occurs in the shearing die and blanking die, the gap between the cutting edge or large or small will produce burrs;

3, line offset: when the part is formed, the part that first contacts the mold is squeezed and forms a line;

4, convex and concave: the unwinding line has foreign matter (iron filings, rubber, dust) mixed into the convex and concave;

5, zigzag: due to uneven stress, poor drawbead matching or poor control of the slider of the press, etc., causing tortuosity and strain of the r-angle or embossed part of the workpiece;

6, wrinkles: due to poor adjustment of the slider of the press, low precision of the press, improper adjustment of the air cushion pressure, large punch or r parts caused by wrinkles at the edge or r.

7. Other specific problems: In daily production, there will be cases where the punching size is too large or too small (may exceed the specification) and the difference from the size of the punch is large, except for the design dimensions of the forming convex and concave molds. In addition to factors such as machining accuracy and blanking clearance, hinge manufacturers should also consider the following aspects.