关键词: 机械制造工艺与设备, 导套式, 椭圆超声振动切削, 切削力, 加工精度

Abstract:

Most research on elliptical ultrasonic vibration cutting is without leading bushing in present, in this paper, the elliptical ultrasonic vibration cutting device with leading bushing is studied. Based on the analysis of elliptical ultrasonic vibration cutting mechanism, cutting experiments were done. The results show that elliptical ultrasonic vibration cutting device with leading bushing can still make the cutting forces decrease remarkably, and improve the machining accuracy. The average thrust force and principal force of elliptical ultrasonic vibration cutting value drop to 19. 6% and 31% of conventional cutting. When the theoretical depth of cut is 0. 050 mm,the actual depth of elliptical ultrasonic vibration cutting is close to the actual depth of cut and the value is 0. 045 mm. There are large difference between conven- tional cutting and theoretical depth of cut, the actual value is 0. 032 mm.

Key words: machinofacture technique and equipment, leading bushing, elliptical ultrasonic vibration cutting, cutting force, machining accuracy