磁場援用切削加工に関する研究 : オーステナイト系ステンレス鋼加工時の被削性の向上

概要

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Some effects of magnetic field on metal cutting have been revealed. 3-20 wt% cobalt (Co) is used as cement in a common cemented carbide tool. However, Co cement may be washed away from the subsurface of the tool in the cutting area where both high temperature and high pressure are applied. This is one of the main reasons for tool wear. Considering that Co is a ferromagnetic substance, there is a possibility that tool wear can be reduced by applying magnetic power near the cutting area. Thus many cutting tests with various combinations of materials and tools were performed under a magnetic field. Consequently, long life of carbide tools was obtained in the Magnetic-Field Assisted Cutting (MFAC). Improvement of surface roughness and suppression of chattering during the turning of austenitic stainless steel and invar alloy were acomplished by a magnetic-field-induced martensitic transformation.
一般社団法人日本機械学会の論文
2000-08-25