Shanghai Highmind Super-hard Material S&T Development Ltd

Our Mainly Products PCD Inserts, PCBN Inserts, Mono Diamond And CVD Inserts,
Diamond Machine Processing Cutting Tool.

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The Main Indexes Of Polycrystalline Diamond Cutter
- Apr 27, 2017 -

PCD hardness up to 8000HV, for cemented carbide 8~12 times;

The thermal conductivity of PCD is 700W/mK, which is 1.5~9 times of cemented carbide, even higher than PCBN and copper, so the thermal transfer of PCD cutter is fast;

The friction coefficient of PCD is generally only 0.1~0.3 (the friction coefficient of cemented carbide is 0.4~1), so the PCD cutter can significantly reduce the cutting force;

The thermal expansion coefficient of PCD is only 0.9x10^-6~1.18x10^-6, which is equivalent to 1/5 of cemented carbide, so the thermal distortion of PCD cutter is small and the machining precision is high.

The affinity between PCD cutter and nonferrous metals and nonmetallic materials is very small, and the chips are not easily adhered to the tip of the machining process.