切削特性に及ぼす工具切れ刃稜線方向移動の影響(第１報) : −切りくず生成挙動および切削力に及ぼす影響−

概要

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Recently, in order to realize multi-functionality and intensive processing a new compound multi-axis machine tool has been developed. This machine tool has the potential to realize not only production needs for complex part, but also new machining process. The one of new process is turning with an actively driven rotary tool. But the effect of the tool rotational speed on cutting temperature and cutting force has not been investigated sufficiently. In this paper, in order to investigate the effect of tool rotation during the turning with actively driven rotary tool, an analogical experiment to that machining process was carried out. The cutting method is the same as the oblique cutting process, but the cutting tool moves in the direction perpendicular to the cutting direction. It was found that the cutting force decreased with an increase in the tool moving speed in the direction perpendicular to the cutting direction. In addition, decrease of the cutting force obtained by moving the cutting tool in the direction perpendicular to the cutting direction was larger than that obtained by inclining the cutting edge. With increase of tool moving speed, the helix angle of chips was increased, then it was seemed that the chip flow became smooth, also its flow direction was changed.