Study on method for avoiding chatter vibration by changing machine tool rigidity

抄録

Chatter vibration is the most problem in machining. At present, chatter vibration is avoided by changing the cutting conditions so that chatter vibration does not occur based on the stability limit diagram. However, changing the cutting conditions may lead to a decrease in productivity. The stability limit is estimated from the relationship between dynamic characteristics of machine tool and the cutting conditions. Therefore, we propose the method for avoiding the chatter vibration by changing the machine tool rigidity. In this report, we report the transition of dynamic characteristics and stability limit diagram due to the change in the rigidity of the machine, and the confirmation of the presence or absence of chatter vibration by the machining test.