Dr. Dmitri Kopeliovich
Deep drawing is a cold metal forming process, in which a flat metal blank is forced into a die cavity by hydraulically driven punch.
A cup-like cylindrical part, having the depth greater than its diameter, is formed as a result of deep drawing.
The process is presented in the picture:
Typical stages of a deep drawing process are as follows:
The maximum amount of deformation occurs in the cup walls, deformation of the flange is lower, bottom region undergoes no deformation.
Deep drawing alloys should possess high ductility in order to withstand large amounts of deformation.
Car bodies, pans, cartridge cases, kitchen sinks, beverage cans, bullet envelopes and other cup-like parts are manufactured by deep drawing process.