What are the technical requirements for stamping materials

Stamping materials also have certain technical requirements, so how to detect whether they meet the technical requirements? Let's take a look below; 1. Chemical analysis and metallographic inspection analyze the content of chemical elements in stamping materials, determine the uniformity of the material grain size, and evaluate the free cementite, band structure and non-metallic inclusions in the material Check the material of stamping parts for shrinkage, porosity and other defects; 2. The materials for processing stamping parts are mainly hot-rolled or cold-rolled (mainly cold-rolled) metal plate and strip materials, and the raw materials of stamping parts should have quality certificates , It guarantees that the stamping parts materials meet the specified technical requirements. When there is no quality certificate or due to other reasons, the stamping parts manufacturer can return it or allow it to re-inspect the raw materials according to the regulations; Cupping test is used to determine the work hardening index n value and plastic strain ratio r value of the material. In addition, the steel sheet forming performance test method can be carried out according to the thin steel sheet forming performance and test method; 4. The hardness test of stamping parts adopts Luo Hardness Tester. Small stamping parts with complex shapes can be used to test the small plane, which cannot be tested on an ordinary desktop Rockwell hardness tester; recommended article: What are the stamping parts production costs in a stamping part processing plant? Previous post: What are the production costs of stamping parts in a stamping parts processing plant?