Metal automobile stamping parts have penetrated into various fields

2020-06-06 08:51:13

With the improvement of life quality, metal automobile stamping parts have penetrated into various fields. No matter in industrial production or daily life, many places will use various metal stamping parts. It is closely related to our life and cannot be separated. What process and technical requirements are needed in the production of metal stamping parts in the hardware processing factory to produce hardware products that can meet the production and life of consumers?

1. Chemical analysis and metallographic examination are used to analyze the content of chemical elements in materials, determine the grade and uniformity of material grain size, evaluate the grade of free cementite, banded structure and non-metallic inclusion in materials, and check the defects such as shrinkage and porosity of materials.

2. Material inspection: the materials processed by stamping parts are mainly hot-rolled or cold-rolled (mainly cold-rolled) metal plate and strip materials. The raw materials of metal stamping parts shall have quality certificates to ensure that the materials meet the specified technical requirements. When there is no quality certificate or for other reasons, the hardware stamping parts manufacturer can select raw materials for re inspection as required.

3. The forming performance test is to carry out the bending test and cupping test on the material, to determine the work hardening index n value and the plastic strain ratio R value of the material, etc. in addition, the forming performance test method of the steel plate can be carried out according to the provisions of the forming performance and test method of the steel plate.

4. Hardness testing hardware stamping hardness testing using Rockwell hardness tester. Small stamping parts with complex shape can be used to test the small plane, which can not be tested on ordinary Rockwell hardness tester.

Automobile stamping parts are mainly formed by stamping metal or non-metal plates with the help of the pressure of the press through the stamping die. It mainly has the following characteristics:

(1) the stamping parts of automobile parts are made by stamping on the premise of little material consumption. The parts are light in weight and good in rigidity. After plastic deformation, the internal structure of metal is improved, and the strength of stamping parts is improved.

(2) the stamping parts of automobile parts have high dimensional accuracy, uniform size with the die, and good interchangeability. No further machining is needed to meet the general assembly and use requirements.

(3) in the stamping process, because the surface of the material is not damaged, the stamping parts have good surface quality and smooth appearance, which provides convenient conditions for surface painting, electroplating, phosphating and other surface treatment.