Analysis of Tool Wear and Wear Mechanism in Dry Forming Milling for Rail Milling Train
Milling tools of the rail milling train have to face severe weariness due to the uneven surface hardness,inconsistent cutting rate and uncertain status of the rail itself as well as the vibration caused by the suspension system of the rail milling train and its characteristic hunting motion.This study performed a milling tool wearing status analysis and conducted relative research on wearing mechanisms with electron scanning microscope based on the typical milling tools and specific working conditions of rail milling train.Results indicate that the wearing status of rail milling train consists mainly of crater wear,notch wear,cutting edge chipping,surface exfoliation,milling sintering and tool break.The tool wearing conditions of rail milling train,compared with ordinary milling process,are significantly severe,and associated with multiple types of wearing status of which certain relevance exists.The research is of great significance for the improvement of the milling tool,the optimization of the process and the improvement of the mobile milling quality of the rail.
Rail Forming dry milling Tool wear Wear mechanism
Chao Pan Xiaoshan Gu Mulan Wang Baosheng Wang
China Railway Shanghai Administration Group Nanjing EMU Department,Nanjing 210012,China Jiangsu Key Laboratory of Advanced Numerical Control Technology,Nanjing 211167,Jiangsu,China;Jiangsu
国际会议
浙江湖州
英文
508-517
2019-08-12（万方平台首次上网日期，不代表论文的发表时间）