A Mathematical Model for Predicting Cutting Force in Rotary Ultrasonic Drilling
Rotary ultrasonic machining is a hybrid machining process that combines diamond grinding and ultrasonic machining．The mathematical predictive materiaI removal rate models have been developed in rotary ultrasonic machining with a constant pressure．However．there is no report on mathematical predictive cutting force model in rotary． ultrasonic drilling at a constant feedrate presently．Since cutting force can not only reflect the processing state,but also affect the machined surface quailty,it is necessary to develop a mathematicaI model for predicting cutting force which can forecast the machining results．This paper presents a mathematical model to predict the cutting force in rotary ultrasonic machining．0n the basis of this model．the relations between cutting force and controllable machining parameters are researched by numerical computation method．This paper also researches the influences of spindle speed and feedrate on culling force bv experiments．The results observed through the experiments agree well with the relations generated from the mathematical model．which verifv the developed model．
rotary ultrasonic machining constant feedraw drilling brittle fracture cutting force mathematical model
Chenglong Zhang Pingfa Feng Dingwen Yu Zhijun Wu
Department of Precision Instrument and Mechanology Tsinghua University 100084 Beijing,China
国际会议
海口
英文
81-85
2011-02-22（万方平台首次上网日期，不代表论文的发表时间）