Requirements for the processing of precision metal stamping parts
Precision metal stamping parts are widely used in industry and life. In industry, it can be used for overall stamping in the automotive industry. In life, it can be used for stamping of daily necessities and home appliances. Precision metal stamping parts are everywhere in our lives, and precision metal stamping parts are processed. Next, the editor will explain the requirements of precision metal stamping parts processing for you!
1. Chemical analysis, metallographic examination
Analyze the content of chemical elements in the material, determine the grain size level and uniformity of the material, evaluate the level of free cementite, banded structure and non-metallic inclusions in the material, and inspect the material for defects such as shrinkage and porosity.
2. Material inspection
The materials for precision metal stamping parts are mainly hot-rolled or cold-rolled (mainly cold-rolled) metal strip materials. The raw materials of precision metal stamping parts should have a quality certificate, which ensures that the materials meet the specified technical requirements. When there is no quality certificate or for other reasons, the precision metal stamping parts manufacturer can select raw materials for re-inspection as needed.
3. Formability test
Bending test and cupping test are carried out on the material, and the work hardening index n value and plastic strain ratio r value of the material are determined. In addition, the test method for the formability of the steel plate can be carried out according to the provisions of the formability and test method of the thin steel plate.
4. Hardness testing
The hardness test of precision metal stamping parts adopts Rockwell hardness tester. Small, complex-shaped stampings can be used to test small planes that cannot be tested on ordinary benchtop Rockwell hardness testers.
5. Determination of other performance requirements
Determination of the electromagnetic properties of materials and the adhesion of coatings and coatings.
mobile website
