Metal stamping parts factory production is the use of press and die on the plate, strip, pipe and profile to apply external force, so that plastic deformation or separation, so as to attain the desired shape and size of the workpiece. This is the stamping process. The three indispensable things in the stamping process are the metal material, the die and the press.
Metal stamping part manufacturer hardware stamping parts hardness testing using Rockwell hardness tester. Tiny, COMPLEX SHAPED STAMpings can BE USED TO test flat surfaces that are too small to be identified on an ordinary BENCHtop ROCKwell hardness tester. Stamping parts processing including punching, bending, deep drawing, shaping, finishing and other processes, due to various reasons in the production process of stamping parts precision is not sufficient, Hao Xin precision summary of the reasons are as follows:
1. Low quality of raw materials.
2. Due to the improper adjustment of the last process or the wear of the rounded corners, the principle of equal volume during deformation is destroyed and the size shift after blanking is induced.
3. Due to poor positioning during operation or poor design of positioning mechanism, the blank moves during blanking. Or due to the shear defects (prisms, lack of edges, etc.) and caused by incorrect positioning, can cause size out of tolerance.
4. The cutting sequence is incorrect.
5, mold edge size manufacturing out of tolerance
6, the springback of precision stamping parts in the punching process, the shape of the workpiece in the last process is inconsistent with the shape of the supporting surface of the working part of the mold in the following process, so that the deformation of the precision stamping parts arises in the punching process, and the elastic recovery occurs after the punching is finished, thus affecting the dimensional accuracy.