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

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

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The arc milling method has the advantages of high machining efficiency and low cost and is independent of the strength and hardness of machined materials.However,frequent electrode back-offs and the risk of workpiece burning may occur if erosion products are not removed promptly.In this study,it was found that the flushing method of the working medium had a sig-nificant impact on the machining performance of arc milling.Based on this,a novel high-efficiency compound machining method of electrical discharge and arc milling with automatic tracking of the optimal flushing direction was proposed.An automatic tracking optimizer for exter-nal working medium injection was designed to determine the optimal external flushing direction according to the feed direction.The influence of flushing methods,working mediums,and machin-ing parameters on the machining efficiency,tool electrode wear rate,machining error,and surface integrity of titanium alloys were investigated.The results indicated that better machining perfor-mance and environmental friendliness were achieved using the compound flushing method of outer compressed air and inner deionized water.Additionally,the automatic tracking flushing method in the opposite direction of the feed direction showed superior results compared to other directions.The 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.

Arc millingDielectricDifficult-to-cut materialsElectric discharge machiningErosionMaterial removal rate

Xinlei WU、Yonghong LIU、Pengxin ZHANG、Liang QI、Dege LI、Chi MA、Renjie JI

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College of Mechanical and Electronic Engineering,China University of Petroleum(East China),Qingdao 266580,China

School of Mechanical and Power Engineering,Nanjing Tech University,Nanjing 211816,China

国家重点研发计划Equipment Preresearch Collaborative Foundation for Innovation Team from Ministry of Education of the People's Republic of ChScience and Technology Support Plan for Youth Innovation of Universities in Shandong Province山东省自然科学基金

2019YFE01051008091B0422092019KJB016ZR2022ME106

2024

10.1016/j.cja.2023.07.031

中国航空学报(英文版)
中国航空学会

中国航空学报(英文版)

CSTPCDEI
影响因子：0.847
ISSN：1000-9361
年,卷(期)：2024.37(3)
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