Basic knowledge of stamping die

Basic knowledge of stamping die terminology
1. Crimping
Hemming is a stamping process in which the edge of the process part is rolled into a closed circle. The axis of the crimped circle is straight.
2. Curled edge
Crimping is a metal stamping process in which the upper edge of the hollow part is rolled into a closed circle.
3. Drawing
Drawing is a stamping process that transforms straight wool or process parts into a curved surface. The curved surface is mainly formed by the extension of the material at the bottom of the punch.
4. Pull bend
Stretch bending is a stamping process in which bending deformation is realized under the combined action of tensile force and bending moment, so that the entire bending cross section is subjected to tensile stress.
5. Bulging
Bulging is a stamping process in which hollow or tubular parts are expanded radially outward. Sectioning Sectioning is a stamping process that divides the forming process into several pieces.
6. Leveling
Leveling is a copper stamping process to improve the flatness of partial or overall planar parts.
7, ups and downs forming
It is a stamping process that relies on the extension of the material to form partial depressions or protrusions in the process parts. The change of material thickness in the undulating forming is unintentional, that is, a small amount of change in thickness is formed naturally during the deformation process, and is not a requirement specified by the design.