びびり振動が超硬バイトの寿命に及ぼす影響(第1報)

抄録

The life and the final failure of the carbide cutting edge in the machining without chatter are examined firstly in this paper to ascertain the effects of chatter vibrations on the life of carbide tools. It is consequently ascertained that in the machining without chatter all tools hold out for a long time, and the ISO P10-tool has particularly the superior properties for this machining, and also that the critical values of the, flank wear or the depth of cratering as a reasonable standard for a carbide tool life vary according to cutting conditions, and further, that the types of the final failure of the cutting edge vary also with cutting conditions, namely, the wear increases on the whole as fast as the severe cutting conditions. But in small feed machining extraordinary flank wear on the toolnose is liable to occur and only in higher speed machining the flank on the toolnose wears wider than that on the main cutting edge.