The domestic metal stamping industry is constantly catching up with the world's advanced level and narrowing the technological gap with developed countries. Therefore, metal stamping products are ubiquitous in daily life. So, what should metal stamping manufacturers pay attention to when producing stamping parts to ensure product quality? Below, the editor has summarized a few points for your reference.

Points to note in the production of metal stamping parts

1. Regularly inspect the installation base of the punch press turntable and stamping parts mold to ensure the coaxial accuracy of the upper and lower turntables.

2Metal stamping partsBefore installation and use, strict inspection should be carried out, dirt should be removed, and the guide sleeve and mold of the drawn and stamped parts should be carefully checked for good lubrication.

3. In order to ensure the service life of the tension and compression parts, the springs of the mold should be replaced regularly to prevent fatigue damage to the springs from affecting the use of the tension and stamping parts.

4. When installing the mold, stamping personnel should use soft metal manufacturing tools to prevent damage to the stamped parts caused by knocking and crushing during the installation process.

5. When the convex and concave die edges of stamping parts wear out, they should be stopped from use in a timely manner and sharpened in a timely manner. Otherwise, it will quickly increase the wear of the mold edge, accelerate mold wear, and reduce the quality and service life of the stamping parts.

6. According to the installation procedure of the mold, install the convex and concave molds on the turntable to ensure that the direction of the convex and concave drawing stamping parts is consistent. Especially for stamping parts with directional requirements, they should be installed carefully to prevent incorrect installation and reverse installation.

How to ensure the quality of metal stamping parts

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 carbides, banded structures, and non-metallic inclusions in the material, and inspect defects such as shrinkage and porosity.

2. Material inspection

The materials used for stamping parts processing are mainly hot-rolled or cold-rolled (mainly cold-rolled) metal sheet and strip materials. The raw materials for metal stamping parts should have quality certificates to ensure that the materials meet the specified technical requirements. When there is no quality certificate or for other reasons,Metal stamping partsThe production factory can select raw materials for retesting as needed.

3. Forming performance test

Perform bending tests and cupping tests on the material to determine its work hardening index n value and plastic strain ratio r. In addition, regarding the testing method for steel plate formability, it can be carried out according to the regulations for thin steel plate formability and testing methods.

4. Hardness testing

The hardness testing of metal stamping parts adopts Rockwell hardness tester. Small and complex shaped stamped parts can be used to test surfaces that are too small to be tested on ordinary desktop Rockwell hardness testers.

5. Determination of other performance requirements

Measurement of the electromagnetic properties of materials and their adhesion to coatings and coatings.

The above is about the introduction of Bosi Hardware by the editorKey points to note in the production of metal stamping parts： http://www.bosiwj.com/mp-11.html

And how to ensure the quality of metal stamping parts, I hope it can help everyone. If you would like to learn more about this area, please continue to follow Bosi College