General
Design and development of a stamping range

Thin sheet metal stamping is usually carried out on double-acting presses (see article on Presses[B 7 570]) using tooling comprising (figure 1):

• a punch on which the metal is bent and stretched;

• a die to support the metal, which can sometimes be a counter-form (at least partial) to the punch;

• a sheet clamp to hold the sheet in place and slow the flow of metal into the die.

The metal to be stamped can be either in coil form (continuous feed), or in the form of blanks, which are pre-cut plates, usually circular or polygonal in outline. During the...