Deep drawing, also known as drawing or calendering, is a stamping processing method that uses a die to turn a flat blank obtained after punching into an open hollow part.
The deep-drawing process can be used to make cylindrical, stepped, tapered, spherical, box-shaped and other irregular-shaped thin-walled parts. If combined with other stamping and forming processes, parts with extremely complex shapes can also be manufactured. In stamping production, there are many types of drawn parts.
Due to their different geometrical characteristics, the location of the deformation zone, the nature of the deformation, the distribution of the deformation, and the stress state and distribution of the various parts of the blank are quite large, or even essential. Therefore, the determination methods of process parameters, the number and sequence of processes, and the principles and methods of mold design are different.
According to the characteristics of deformation mechanics, various drawing parts can be divided into four types: straight-walled revolving body (cylindrical part), straight-wall non-revolving body (box-shaped body), curved revolving body (curved shape part) and curved non-revolving body Types of.