Diamond tools are not suitable for chip metal

- Apr 17, 2020-

Diamond tools are not suitable for chip metal


Today, I'd like to introduce to you why diamond tools are not suitable for cutting metal. Let's learn quickly!


When diamond is used to process metal matrix composites, either dry cutting or wet cutting is possible. However, due to the low thermal stability of diamond, it will carbonize (i.e. graphitization) at 700-800 ℃, which will sharply reduce the life of diamond tools. For example, wet cutting with cutting fluid can reduce cutting temperature and increase tool life. However, before the cutter cuts into the workpiece, the cutting fluid should be poured until the cutting is completed. The cutting fluid needs to be supplied continuously, and it can't be interrupted from time to time, otherwise it is easy to cause the cutter damage or edge collapse. In the same way, in the process of cutting, it is also necessary to avoid stopping in the middle or changing the cutting parameters.


Diamond is a natural stone or man-made building material, which is stone in the final analysis. However, it has a higher Mohs hardness than other stone materials, which is 10, and its hardness is different from that of metal. In addition, the melting point of metal is high. Similarly, the hardness of diamond will decrease after the heat generated in the friction process.


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