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超声振动切削是一种新型的特种切削加工方法。在一定条件下,能有效地解决精密切削加工和难切削材料的切削加工问题。本文主要从超声振动切削的运动学入手,探讨了超声振动切削的切削机理。指出“分离”运动是超声振动切削加工的本质所在。发现了“切屑惯性效应”的存在对超声振动切削过程有一定的影响。理论分析表明,在超声振动切削中,切液削有一定作用,但不可能在极短的分离时间内浸入刀—屑界面。
Ultrasonic vibration cutting is a new type of special cutting method. Under certain conditions, can effectively solve the precision machining and difficult cutting material cutting problems. In this paper, starting from the kinematics of ultrasonic vibration cutting, the cutting mechanism of ultrasonic vibration cutting is discussed. Pointed out that the “separation” movement is the essence of ultrasonic vibration machining. The existence of “chip inertia effect” was found to have a certain impact on the ultrasonic vibration cutting process. Theoretical analysis shows that in the ultrasonic vibration cutting, cutting fluid has some effect, but it is impossible to immerse the blade-chip interface in a very short separation time.