Tool life is difficult to predict

Like any other tool, stone chisel life varies, depending on the material to be cut, the choice of feed rate and cutting speed, and the geometry of the workpiece and so on. Generally, diamond-coated graphite machining tool life is uncoated carbide tools 10-20 times, in some cases, may even be longer. This way, you can use a tool to polycrystalline diamond any processing tasks without tool change due to tool wear and to avoid disruption and recalibration process, making it possible to achieve unattended machining. The processing of the composite material, is entirely possible to obtain a longer tool life.
Diamond coating flaking coating can prevent spalling of diamond coated tools a serious problem, but also a common problem, can cause cutting tools tool life. The late 1990s, interfacial chemical properties were identified as affecting the diamond coating adhesion properties of important factors. By selecting good compatibility Carbide chemical characteristics, the use of Synthetic diamond technology and reasonable pre-deposition reaction conditions, it is possible to reduce or eliminate the diamond coating spalling, stably smooth wear patterns. Observed under the microscope normal wear diamond coated tool, you can find the diamond was worn until stable carbide substrate, without chipping or peeling.