Abstract

This paper deals with the regenerative chatter vibration in a cut-off tool. The chatter vibration and chatter frequency are experimentally observed using cut-off tools of straight shank or bending shank. The vibration energy supply mechanism is investigated by considering the interference effect between tool shank and workpiece surface and the regenerative effect between successive cutting operations. It is clarified that the regenerative chatter vibration of cut-off tools is induced by supplying the vibration energy due to the interference effect. The reduction of the interference effect is effective to reduce the regenerative chatter vibration of cut-off tools.

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