平面端铣切削振动试验

介绍了端铣振动试验方法。通过观察分析工件表面的微观不平度、切削表面的高频波纹和在机床切削点测得的振动信号，跟踪分析了铣削强迫振动和颤振现象。强迫振动随切削速度、进给量、切削深度增大而加剧，颤振随切削速度、进给量增大及切削深度减小不易发生，结论与理论分析、他人试验结果相符，为选择改变切削用量、减小铣削振动指出了方向

Cutting Vibration Test in Face Milling

A test for measuring and analyzing cutting vibrations in face milling is introduced. The analysis of forced and chatter vibrations are made according to the observation and analysis of the microroughness of probe workpiece surface, high frequency corrugations on chip surface as well as the vibration measured at cutting point of milling machine. Test results show that, the forced cutting vibrations become stronger with the increase of cutting speed, feed and cutting depth, whereas the chatter vibrations become more diffcult to happen with the increase of cutting speed and feed and with the decrease of cutting depth, which coincides with the theoretical analysis and the experimental results from other investigaters. The work presented in the paper points the direction of a proper choice of cutting parameters for suppressing face milling vibrations.