Metal stamping is the use of punch and die to iron, aluminum, copper plate and heterosexual wood make its deformation or fracture, to have a certain shape and size of a process. Sheet metal stamping sometimes called forming, but a little difference. Sheet forming refers to the use thin plate, thin wall pipe, profiles, etc as raw materials. Method of plastic forming, collectively known as the sheet metal forming, at this time, the direction of the plate deformation is generally not considered. Stamping industry is a very widely in the field of industry involved, deep into all aspects of manufacturing, called stamping sheet metal forming in foreign countries. Its basic process is as follows:

1、deep drawing

The flat wool or process into the hollow parts, or put hollow pieces of further change shape and size of a stamping process. When drawing the hollow pieces rely mainly on the punch at the bottom of the outside of the material flow into the die to form.

2、trimming

Using metal stamping mold trim the edge of the forming process, make it has a certain diameter, a certain height, or must be in the shape of a stamping process.

3、punching

Will waste along the closed contour from material or process on the separation of a stamping process, in the material or workpieces need hole.

4、flanging

Around the curve shape will turn into a short side edge of a stamping process.

5、the double hole

Around the hole the material into its side flange of a stamping process.

6、blanking

Separate the material along the closed contour of a stamping process, isolated materials become artifacts or process, most is flat.

7、plastic

Depend on the material flow, a small amount of change process in shape and size, to ensure the accuracy of a workpiece stamping process.