Progressive stamping

Progressive stamping is a metalworking method that can encompass punching, coining, bending and several other ways of modifying metal raw material, combined with an automatic feeding system.

The feeding system pushes a strip of metal (as it unrolls from a coil) through all of the stations of a progressive stamping die. Each station performs one or more operations until a finished part is made per the requirements on the blueprint. The final station is a cutoff operation, which separates the finished part from the carrying web. The carrying web, along with metal that is punched away in previous operations, is treated as scrap metal.

The progressive stamping die is placed into a reciprocating stamping press. As the stamping press moves up, the progressive stamping die opens. When the stamping press moves down, the progressive stamping die closes. When the stamping press opens, the metal material is able to feed. As the stamping press closes, the progressive stamping die performs work on the raw material. With each stroke of the press, a completed part is removed from the die.