What kind of instrument can be selected to test the hardness of materials used in automobile stamping parts?

2021-08-24 08:30:24

There are many ways to test the performance of materials used in a stamping part. For its hardness testing, Rockwell hardness tester is more used. It can accurately measure the accuracy of stamping parts and judge whether they are qualified. Is this measuring instrument really so easy to use?

Because there is no standard for the shape of automotive stamping parts, it is difficult to measure their performance, especially for those small and complex stamping parts, which can not be measured by ordinary equipment. At this time, portable surface Rockwell hardness tester provides many aspects, and it is just suitable for this kind of stamping parts.

The hardness levels of materials used to make different stamping parts are also different, so there are different hardness testers that can be used. For example, aluminum alloy plate can be tested with Wechsler hardness tester. After the material thickness is greater than a certain degree, it can be changed to Babbitt hardness tester, so as to achieve more accurate measurement effect.

In the process of stamping forming, the temperature of the workpiece will change. If it is not controlled by the role of lubricating oil, not only the quality of the stamping part will be affected, but also the stamping die may be damaged. It is different when lubricating oil is added, so that it can form a protective film on the surface of stamping parts, avoiding the adverse consequences of temperature production.

Especially for cold forging and stamping, lubricating oil is one of the indispensable processing aids. Of course, we should also pay attention to the amount of lubricating oil to avoid waste and ensure the cleanliness of the environment on the premise of ensuring the effectiveness.