Identification of process damping for chatter prediction in milling
Traditionally,forecasting stability lobe diagram in milling is limited by complex damping identification procedures,so only structural damping from the impact experiment is used for predicting stability lobe diagram in most milling cases.In this study,by using the mathematical expressions among damping ratio,“critical limiting depth of cut and “worst spindle speed,it is shown that the predicted “critical limiting depth of cut based on the structural damping divided by the measured “critical limiting depth of cut can be approximately equal to the structural damping divided by the total damping.Based on this relationship,it is easy to estimate the total damping or process damping from the experiment within the selected spindle speeds.In practice,this paper presents an easy method for predicting stability lobe diagram using the total damping.At the same time,experiments have confirmed that using the prediction model of total damping can more accurately predict the stability lobe diagram.
Charles M.Zheng Chou-Fu Liang Hai-Yi Cai Shui-Shen Zhang
Quanzhou Institute of Technology,Department of Mechanical Manufacturing and Automation,362268 Jinjia Fujian Agriculture and Forestry University,College of Transportation and Civil Engineering,350108 Fu
国际会议
广州
英文
1-5
2018-05-11（万方平台首次上网日期，不代表论文的发表时间）