焼入れした炭素鋼の高温切削

抄録

Cutting tests with ceramic tool are performed on hardened S 45 C steel billet at high temperature by using flame heating method. Hardness on the work surface, cutting forces, tool life, roughness on the work surface, chip, and other pertinent data are taken.
Tool life test is conducted from room temperature to 500°C work temperature and other test are conducted from room temperature to 600°C work temperature.
The results showed that tool life is increased with the rise of work temperature but hardness on the work surface is linearly decreased with work temperature. Also, it is pointed out that the optimum heating temperature for hardened carbon steel will be 200300°C.