Vibration Analysis on Ball End Milling Hardened Mould Assembled with Different Hardness Materials

摘要：

Analytical and experimental identifications on the characteristics of the acceleration signal in high speed milling (HSM) process using ball end mill were studied. Three parts of harden steel with different hardness were assembled together, as opposed to the single harden steel in general HSM process. Dynamic model of ball end milling was established, tests with new and worn cutter were carried out respectively. Time domain analysis on the acceleration signal showed that the amplitude varies with the hardness through the whole cutting path. Furthermore, frequency domain analysis using fast Fourier transform (FFT) technique shows that the spectrum of the vibration signal using new cutter contain the tool spindle rotation speed as fundamental frequency and its harmonics. On the other hand, the spectrum of vibration signal under tool wear state contain other frequencies in addition to the fundamental frequency and harmonics, and this feature of spectrum can be used to monitor the state of the cutter during HSM.

关键词： High speed milling Vibration analysis Ball end mill Spectrum

作者: Y.Y. Wang S.M. Ji X. Zhang D.H. Wen Y.J. Tang

作者单位: Key Laboratory of Special Purpose Equipment and Advanced Processing Technology (ZhejiangUniversity o Key Laboratory of Special Purpose Equipment and Advanced Processing Technology (Zhejiang University

会议类型: 国际会议

会议名称: The 4th International Conference on High Speed Machining(第四届高速加工国际会议 ICHSM2010)

会议地点: 武汉

会议语种:英文

页码: 561-565

在线出版日期: 2011-05-28（万方平台首次上网日期，不代表论文的发表时间）