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How to ensure the quality of metal stamping parts


In daily life, metal stamping parts are ubiquitous. How to improve customer productivity and quality assurance is the core direction of DESHENGRUI Machinery. To help customers improve their competitiveness, equipment and technology are indispensable. Metal stamping parts are indispensable in the following aspects.
1, hardness test
The hardness of the metal stamping parts is measured by a Rockwell hardness tester. Small, complex-shaped stampings can be used to test small planes that cannot be tested on ordinary benchtop Rockwell hardness testers.
2. Chemical analysis and metallographic examination
Analyze the content of chemical elements in the material, determine the grade and uniformity of the grain size of the material, evaluate the grade of free cementite, banded structure and non-metallic inclusions in the material, and inspect the defects such as shrinkage and porosity of the material.
3, forming performance test
The material is subjected to a bending test and a cupping test, and the work hardening index n value and the plastic strain ratio r value of the material are measured, and the test method for the forming property of the steel sheet can be carried out according to the forming properties of the steel sheet and the test method.
4, material inspection
The materials processed by stamping parts are mainly hot-rolled or cold-rolled (mainly cold-rolled) metal strip materials. The raw materials of metal stamping parts should have quality certificates, which ensure that the materials meet the specified technical requirements. When there is no quality certificate or for other reasons, the metal stamping parts manufacturer can select the raw materials for re-inspection as needed.
5, hardness testing
The hardness of the metal stamping parts is measured by a Rockwell hardness tester. Small, complex-shaped stampings can be used to test small planes that cannot be tested on ordinary benchtop Rockwell hardness testers.
6, other performance requirements determination

Determination of the electromagnetic properties of the material and the adhesion to the coating, the coating, and the like.



DESHENGRUI Machinery is a professional CNC manufacturing and Sheet metal fabrication company, including CNC machining services, CNC Turning service, CNC milling services, CNC drilling services, laser cutting services, stamping services, Die casting service, iron casting service and Steel Forging service.


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