5143 ホブ切りにおける生成切りくずの歯面かみ込みに関する基礎研究(S63-9 製造・加工・開発,S63 伝動装置の基礎と応用)

概要

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The degradation of tooth surfaces and the abnormal tool wear sometimes occurs in dry hobbing. This paper investigates the transient phenomenon of chip generations and behavior in simulation tests of hobbing by using high-speed video camera. The jamming of the chip between the tooth surface and the cutting edge causes scratches on the tooth surface and the chipping of cutting edge so on. The figures of chip produced by hobbing are classified roughly into the "U", "J" and "I" types. The occurrence of jamming of the "J" type-chip is already clarified in the flytool simulation tests. This paper presents findings of the "I" type-chip movements in flytool simulation tests. In down cut, the "I" type-chip flows from the root side to the tip side of the cutting tooth, and the pointed end of the chip is jammed into the space between the finished surface and the relief face of the cutting tooth. In up cut, the chip flows to the root side of the rake face, and possibility of jamming is shown alike the case of down cut.
一般社団法人日本機械学会の論文
2006-09-15