Experimental Study on the Tool Wear in Milling Carbon Fiber Reinforced Plastics

Basing on the milling experiment of carbon fiber reinforced plastics (CFRP), the wear performance of CVD diamond coated tool with different cutting edge is compared and studied. The result shows that lifetimes of interlaced edge and herringbone edge milling cutters are significantly higher than general edge milling cutter, under the same parameters. The lifetime of interlaced edge milling cutter is about 2 times than herringbone edge milling cutter, and 3.5 times than general edge milling cutter. The wear failure mechanisms of CVD diamond coated tools are abrasive wear and coating peeling, which are caused by micro-cutting of hard carbon fiber and the impact action of mechanical load and thermal stress.