HighPerformance Cutting and Grinding （高性能切削和磨削）.pdf

Mitsubishi Heavy Industries Technical Review Vol. 49 No. 3 (September 2012) 3 High-Performance Cutting and Grinding Technology for CFRP (Carbon Fiber Reinforced Plastic) HIDEAKI ARISAWA*1 SATORU AKAMA*1 HARUHIKO NIITANI*2 Since it is not only a high-strength, but also light-weight material, carbon fiber reinforced p lastic (CFRP) has recently been used in certain specific sectors including aircraft, medical equipment and other applications, while attracting attention to the expected future increase in its utilization volume for moderately mass-produced items, such as in the auto industry, as well. This is, however, a difficult-to-machine material which suffers easy delamination of fiber beds. It also shortens tool life and, therefore, studies on tools and cutting/grinding technologies are now under way at manufacturers and research facilities. We hereby report our successful materialization of a machining technology superior to any existing techniques in terms of machining efficiency and tool life. | 1. Introduction Carbon fiber reinforced plastic (CFRP) is a composite material fabricated by impregnating carbon fibers with resin and then curing and molding it. CFRP, a material boasting high strength and light weight at the same time, started to be practically used first in golf club shafts, fishing rods and other sports goods but in recent years, it