Do you know the usual methods for checking PCD tool hardness? At present, diamond is more popular, mainly because its strength is relatively large, and when used, it can greatly improve work efficiency, but now there are various brands on the market, which also leads to the emergence of many unqualified products. There will be problems with hardness, so it is necessary to master some detection methods.

PCD tool hardness testing method:

1. Introduction of PCD reamer Chemical heat treatment is to infiltrate the surface of the workpiece with atoms of one or several chemical elements, thereby changing the chemical composition, structure and properties of the surface of the workpiece. After quenching and low temperature tempering, the surface of the workpiece has high hardness, wear resistance and contact fatigue strength, and the core of the workpiece has high toughness.

2. Surface quenching and tempering heat treatment method. Surface quenching, tempering heat treatment is usually carried out by induction heating or flame heating. The main technical parameters are surface hardness, local hardness and effective hardened layer depth. Vickers hardness tester can be used for hardness testing, Rockwell or surface Rockwell hardness tester can also be used. The selection of the test force (scale) is related to the depth of the effective hardened layer and the surface hardness of the workpiece.

3. PCD tool hardness testing method: local heat treatment method. If the local hardness requirements of the parts are high, the local quenching heat treatment can be carried out by means of induction heating. For such parts, the location of the local quenching heat treatment and the local hardness value are usually marked on the drawings.

PCD reamer with too high strength will make the crystal not easy to be broken, the abrasive grains will be polished during use, and the sharpness will decrease, which will lead to the deterioration of tool performance.

The detection method of PCD tool hardness is very wet and it is necessary to know and understand. As far as the current market is concerned, there are various brands on the market, but there will also be many substandard products. If you do not know PCD The detection method of tool hardness, it is not allowed that unqualified products will be picked by you. In short, it is not a bad thing to understand the detection method of PCD tool hardness. On the contrary, it may help you when necessary.