Effect of Crystal Orientations on Nanocutting Based on Quasicontinuum Multiscale Method
Nanocutting is one of the most important ultraprecision methods to obtain complex optics with high quality finish.Molecular dynamics is widely used to investigate the nanocutting mechanism due to the nanometric cutting depth.For high efficiency and large scale simulation,the multiscale method is significantly necessary.Quasicontinuum (QC) multiscale method is utilized to study the effect of crystal orientation on nanometric cutting of single crystal copper with the embedded atom method (EAM).The results show that the dislocation generation emission and the distribution of residual stress in workpiece strongly depends on the crystal orientation and cutting direction.The cutting direction along 101 on crystal orientation (111) is recommended to fabricate the higher quality surface.Finally it is proved that QC method is an efficient approach to study the nanocutting mechanism.
quasicontinuum nanocutting dislocation residual stress crystal orientations
Xiao-Wei Chen Xiao-Dong Zhang Feng-Zhou Fang Min Lai Fei-Fei Xu
Sate Key Laboratory of Precision Measuring Technology & InstrumentsCentre of MicroNano Manufacturing Technology, Tianjin University, 300072, China
国际会议
天津
英文
312-316
2012-10-16（万方平台首次上网日期，不代表论文的发表时间）