What kind of hardness tester should be used for different metal stamping materials

Stamping parts processing factory, processing metal stamping parts, stainless steel stamping parts, various mechanical accessories, with the development of society, stamping products have been applied to various fields, metal stamping parts used materials are also divided into many kinds, making metal stamping parts, we need to understand the characteristics of products, material performance, among them, we also need to test the hardness of metal stamping parts The main purpose is to determine whether the annealing degree of the purchased sheet metal is suitable for stamping parts processing;

Different kinds of metal stamping parts processing technology, need different hardness level of the plate. Each kind of plate hardness detection has a specified hardness tester to measure, let’s take a look at it;

1. Hot rolled steel plate is usually relatively thick, and it is generally stipulated to use Brinell hardness tester to test hardness and Rockwell hardness tester to test hot-rolled steel plate; HRB scale can be used and portable Rockwell hardness tester can be used to test hot-rolled steel plate without sampling, and the operation is simple;

2. The hardness of cold-rolled steel sheet used for processing metal stamping parts is mainly measured by Rockwell hardness tester, usually HRB scale is used, and HRC scale is used for harder steel plate;

3. The material of the thin plate can be made of either the Vickers hardness tester or the surface Rockwell hardness tester hrn or HRT scale;

4. The hardness of brass plate used for metal stamping parts can be tested by HRB scale of Rockwell hardness tester, and HRF scale can be used for softer brass and copper plate;

5. The aluminum alloy plate used for processing metal stamping parts can be tested by Vickers hardness tester. When the material thickness island is 13mm, the Babbitt hardness tester can be used, and the bus hardness tester should be used for pure aluminum plate or low hardness aluminum alloy plate;

The main material of stamping die is die steel, and sometimes cemented carbide is used. The stamping die usually requires high hardness and wear resistance, and heat treatment is essential. The hardness of die steel is tested by Rockwell hardness tester. When the die is large and inconvenient to move, Leeb hardness tester can be used. In order to improve the surface hardness and wear resistance, many metal stamping dies and Die accessories need surface heat treatment, such as surface nitriding;