Stretch piece

Stretch piece is a kind of regular curved surface or free-form surface parts which are processed by drawing and other forming methods. These parts are processed by punching and deformation of plate blank. They are very similar to those processed by general machining methods. Flat plate refers to general plane blanking parts. Bending type is composed of bending or bending plus simple forming

 

Forming parts are regular curved surface parts or free-form surface parts processed by drawing and other forming methods. These parts are processed by punching and deformation of plate blank, which are quite different from those processed by general machining methods

 

In the stamping process, Bending deformation is the main processing method that makes stamping parts, stretch piece and sheet metal parts produce complex spatial position relationship. Other processing methods only produce bulge or depression, notch, hole and edge on the flat plate. This feature must be paid attention to when establishing the modeling system of stamping parts, stretch piece and sheet metal parts!