インコネル718切削における超硬合金の工具摩耗

抄録

The tool life in turning of Inconel 718 becomes shorter than that in turning of carbon steel. In order to clarify an effective tool material for the cutting of Inconel 718, the tool wear and the surface roughness were experimentally investigated. The Inconel 718 was turned with WC-Co cemented carbide tool and WC-Ni cemented carbide tool. The main results obtained are as follows: (1) In the WC-Co cemented carbide tools, the wear progress of WC-7%Co cemented carbide tool was slowest. (2) The wear progress of WC-7%Ni cemented carbide tool was slower than that of WC-7%Co cemented carbide tool. (3) In the WC-Ni cemented carbide tools, the wear progress of WC-7%Ni cemented carbide tool was slowest.