①CDCD hardness up to 8000HV, 8 to 12 times as hard alloy;
②PCD thermal conductivity of 700W / mK, carbide 1.5 to 9 times, or even higher than the PCBN and copper, PCD tool heat transfer quickly;
③PCD friction coefficient is generally only 0.1 ~ 0.3 (carbide coefficient of friction of 0.4 to 1), so PCD tool can significantly reduce the cutting force;
④PCD thermal expansion coefficient of only 0.9 × 10 ^ -6 ~ 1.18 × 10 ^ -6, equivalent to only 1/5 of the cemented carbide, PCD tool thermal deformation is small, high precision;
⑤PCD tool and non-ferrous metals and non-metallic materials between the affinity is very small, in the process of chip bonding is not easy to form a chip edge tumor tip.
