Effect of Dynamic Characteristic for Test-piece and Its Fixtureon Measurement of Milling Force
The possible causes of periodic abnormalities in the measured data of milling force were to be explored.The test-piece and its fixture were taken as a system,and with modal simulation method,its mode frequencies under different number of fastening bolt were analyzed.With experimental method of hammering response,the amplitude-frequency characteristic curves of this system in horizontal directions were drawn.With experimental method of measuring milling force under different low spindle speeds,the amplitude-frequency relationship curves of measured main force components in horizontal directions were drawn.Research results showed that the amplitude-frequency characteristic curves of this system was similar to the amplitude-frequency relationship curves of measured main force components,and natural frequencies gotten from simulation and experiments were close to each other,which indicates that,the forced vibration of test-piece and its fixture should be the cause of the periodic abnormalities of measured milling forces in lower spindle speed,and the mode frequencies of test-piece and its fixture would decrease only a little with the reduction in the number of its fastening screws.The research results can be referred to in the relevant research and production application of milling force measurement.
Milling Force Measurement Mode Abnormality
Liu CAN Wu JING-QUAN Liu QI-DONG Liu HUAN-LAO Li GUANG-HUI Tan GUANG-YU
Engineering College of Guangdong Ocean University,524088 Zhanjiang,Canton,China
国际会议
第十七届国际制造会议(The 17th International Manufacturing Conference in China)(IMCC 2017))
深圳
英文
1-6
2017-11-23（万方平台首次上网日期，不代表论文的发表时间）