The hardness is more than 100 times that of ordinary cemented carbide tools. It can reach more than 8000HV, and the thermal conductivity is also 6 or 7 times higher.
PCD tools are mainly used in the following two aspects:
1. Processing of refractory non-ferrous metal materials: When processing refractory non-ferrous metal materials with common tools, there are often defects such as easy tool wear and low processing efficiency, while PCD tools can show good processing performance. For example, PCD tools can effectively process a new type of engine piston material-ultra-microcrystalline silicon-aluminum alloy (a breakthrough has been made in the research on the processing mechanism of this material).
2. Processing of refractory nonmetallic materials: PCD tools are very suitable for processing refractory nonmetallic materials, such as stone, hard carbon, carbon fiber reinforced plastics (CFRP) and wood-based panels.
Extended data PCD is the most commonly used diamond material in production. It is not only suitable for general processing field, but also widely used in automobile, motorcycle, high-speed train, petroleum, chemical industry, construction, wood processing, aerospace and other industrial sectors.
In the field of automobile and motorcycle, PCD is suitable for machining the wear-resistant parts such as skirt, pin hole, cylinder block, gearbox and carburetor of engine aluminum alloy piston.
When machining high hardness and high brittleness materials, the bonding wear of PCD tools is not obvious; On the contrary, when machining low brittle materials (such as carbon fiber reinforced materials), tool wear increases, and bonding wear plays a leading role at this time.
Baidu encyclopedia -PCD tool