Like any other cutting tool, the life of coated diamond tool is different, which mainly depends on the material to be cut, the feed rate and cutting speed selected, and the 

geometry of the workpiece. 

Generally speaking, the life of PCD coated tools for machining graphite is 10-20 times longer than that of uncoated cemented carbide tools, or even longer in some cases.

In this way, almost any machining task can be completed with one turning tool, without tool change due to tool wear, and machining interruption and recalibration can be 

avoided, so it is possible to realize unattended machining. In the processing of composite materials, it is possible to obtain a longer tool life. It is reported that the service life 

of diamond coated tools can reach 70 times that of uncoated cemented carbide tools when machining high-density glass fiber, carbon fiber and gl0-fr4 composites.

Coating peeling is not only a serious problem of diamond coated tools, but also a common problem (especially in the processing of carbon fiber and other materials), which 

can lead to the difficult prediction of tool life. By selecting the chemical characteristics of cemented carbide with good compatibility, adopting proper pretreatment technology

and reasonable deposition reaction conditions, 

it is possible to reduce or eliminate the peeling of diamond coating and achieve stable wear mode. It is found that the diamond is steadily worn to the cemented carbide substrate 

without chipping or peeling. LINKUT supply any technical support for your Polycrystalline Diamond(PCD) application.