摘要
对微细旋转超声加工碳化硅陶瓷过程中的轴向力展开研究,分析了主轴转速、进给率、超声振动能量对轴向力的影响。对轴向力信号的频域分析表明,其中包含了由刀具变形引起的低频力信号和由超声振动带来的高频力信号。在此基础上,分别研究了各工艺参数对低频力信号周期和高频力信号周期的影响和效应。此外,还分析了工具的磨损类型及轴向力对工具磨损的影响。
This study investigated the thrust force in the processing of SiC ceramic using micro ul-trasonic machining （μRUM）. Experiments were conducted to study the influences of spindle speed, feed rate and ultrasonic vibration power on the thrust force. Besides, the thrust force signals were ana-lyzed in the frequency domain and it was disclosed that both low frequency and high frequency signals could be detected during tμRUM. The low frequency signal might be aroused due to tool deflection and tool rotation while the high frequency signal probably caused by the vibration of the ultrasonic system. Furthermore, influences of the machining parameters on the frequency of the thrust force are investi-gated. Finally, different tool wear types and effects of thrust force on tool wear are observed.
出处
《电加工与模具》
2013年第2期39-41,46,共4页
Electromachining & Mould
关键词
微细旋转超声加工
轴向力
正交试验
：micro rotary ultrasonic machining
thrust force
orthogonal experiment
