Electrical discharge and arc milling with automatic tracking of optimal flushing direction:A novel high-efficiency compound machining method

作     者：Xinlei WU Yonghong LIU Pengxin ZHANG Liang QI Dege LI Chi MA Renjie JI Xinlei WU;Yonghong LIU;Pengxin ZHANG;Liang QI;Dege LI;Chi MA;Renjie JI

作者机构：College of Mechanical and Electronic EngineeringChina University of Petroleum(East China)Qingdao 266580China School of Mechanical and Power EngineeringNanjing Tech UniversityNanjing 211816China 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：2024年第37卷第3期

页      面：351-364页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 082503[工学-航空宇航制造工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0825[工学-航空宇航科学与技术] 080201[工学-机械制造及其自动化] 

基　　金：co-supported by the National Key Research and Development Program of China(No.2019YFE0105100) the Equipment Pre-research Collaborative Foundation for Innovation Team from Ministry of Education of the People’s Republic of China(No.8091B042209) the Science and Technology Support Plan for Youth Innovation of Universities in Shandong Province(No.2019KJB016) the Natural Science Foundation of Shandong Province(No.ZR2022ME106) 

主　　题：Arc milling Dielectric Difficult-to-cut materials Electric discharge machining Erosion Material removal rate 

摘      要：The arc milling method has the advantages of high machining efficiency and low cost and is independent of the strength and hardness of machined ***,frequent electrode back-offs and the risk of workpiece burning may occur if erosion products are not removed *** this study,it was found that the flushing method of the working medium had a significant impact on the machining performance of arc *** on this,a novel highefficiency compound machining method of electrical discharge and arc milling with automatic tracking of the optimal flushing direction was *** automatic tracking optimizer for external working medium injection was designed to determine the optimal external flushing direction according to the feed *** influence of flushing methods,working mediums,and machining parameters on the machining efficiency,tool electrode wear rate,machining error,and surface integrity of titanium alloys were *** results indicated that better machining performance and environmental friendliness were achieved using the compound flushing method of outer compressed air and inner deionized ***,the automatic tracking flushing method in the opposite direction of the feed direction showed superior results compared to other *** material removal rate with the opposite direction injection could be increased up to 1.62 times that of the same direction,and the relative electrode wear rate could be reduced by 14.76%.This novel method has broad application prospects for machining parts with difficult-to-cut materials in aerospace and military industries.