Quantitative Study of Shear Localization in Chip Formation While Machining Ti-6Al-4V
The formation of shear localized chips in orthogonal machining of Ti-6Al-4V was investigated. The chips in different cutting velocities were collected and the structure of the adiabatic shear localization was examined by optical microscope and SEM after polishing and eroding. The serrated coefficient, serrated frequency and fibred coefficient were proposed in this paper to characterize the degree of serration and plastic shear flow of the chip quantitatively. Experimental results show that the width of the shear band decreased and the fibred coefficient of the shear band increased as cutting speed increased. The serrated and frequency, the serrated coefficient increased with the increase of cutting speed in the experimental range of cutting speeds.
Shear localization Chip formation Titanium machining Adiabatic shear banding
LIU Dong CHEN Wu-yi XU Honghai LUO Xueke LIANG Hui
College of Electromechanical Engineering, North China University of Technology, Beijing, 100041,Chin School of Mechanical Engineering and Automation, Beijing University of Aeronautics andAstronautics, College of Electromechanical Engineering , Qingdao University of Science & Technology Qingdao,266042
国际会议
第九届加工技术进展国际会议(9th International Conference on Progress of Machining Technology)
昆明
英文
412-415
2009-04-25（万方平台首次上网日期，不代表论文的发表时间）