Simulation of Residual Stress in Ultrasonic Vibration Assisted Micro-milling

摘要：

The machining-induced residual stresses are strongly dependent on the work-piece material and the chosen process parameters. A 2D finite element (FE) model of ultrasonic vibration assisted micro-milling (UVAMM) is established using ABAQUS. Johnson-Cook’s work-piece material and shear failure principle are used, while friction between tool and work-piece uses modified Coulomb’s law whose sliding friction area is combined with sticking friction. By means of FE analysis, the influence rules of spindle speed, vibration frequency and work-piece material on the surface residual stresses are obtained, which provides a basis for choosing optimal process parameters and improving the longevity and reliability of micro-component.

关键词： Ultrasonic vibration Micro-milling Residual stresses Spindle speed Vibration frequency Work-piece material

作者: H.J. Hu Y.Z. Sun Z.S. Lu

作者单位: School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China

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: 381-384

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）