The causes of cbn pcd cutting tool wear are manifold. Under different tool materials, workpiece materials and cutting conditions, the causes of tool wear are different, 

it may be one of them, or it may be the result of several of them. Generally, when cutting at low speed. The main causes of tool wear are abrasive wear and bond wear;

during high-speed cutting, oxidized wear and diffusion wear occur with carbide cutting tools, and phase change wear occurs with high-speed steel tools.

There are several ways to improve tool wear:

Control the influence of cutting speed on wear and select the appropriate cutting speed area.

Reasonable selection of cutting tool materials, giving full play to the performance characteristics of cutting tool materials, including: hardness, strength, chemical stability,

thermal conductivity, thermal expansion, surface inertia, etc.

Improving the quality of tool sharpening and fully pouring cutting fluid, the cutting temperature is greatly reduced, and it has obvious effects on preventing the built-up edge

from damaging the tool, bonding wear, thermal cracking and anti-wear particles.

Improve the strength of the tool, increase the rigidity of the blade and the tool, increase the rigidity of the processing system, and prevent fatigue cracks, chipping, spalling, 

and thermal cracking of the tool.

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