円筒研削における自励振動に関する基礎的検討 : 第1報, 加工物回転速度に着目した発生領域

抄録

It is known that self-excited vibration in cylindrical grinding occurs if the work speed is high. In this paper, the effect of the work speed on the occurrence of self-excited vibration is investigated analytically and numerically. In analytical study, Nyquist's stability criterion is used. The results are as follows: If the work speed is low, self-excited vibration does not occur. On the other hand, if the work speed is high, self-excited vibration always occurs. It is also shown numerically that the phase of the work displacement is delayed in phase by ;π/2 to that of previous grinding. The theoretical result about the critical speed of the work is in good agreement with the experimental one.