摘要
虽然电火花加工技术在现代制造业得到了广泛应用,但目前电火花加工的微观过程仍未完全明确,限制了其进一步应用与发展。近年来,高速摄像技术和数值模拟技术的发展,极大地推动了电火花加工机理相关的研究进展。首先,概述了单次放电过程中的放电通道特性及材料蚀除机理的相关研究成果,重点介绍了放电通道的静态与动态特性以及熔融材料蚀除驱动力的相关研究;接着,简述了连续放电过程情况下的极间环境观测及表面形成过程仿真的研究现状;最后,展望了后续研究方向。
Although electrical discharge machining(EDM) has been widely used in modern manufacturing industry,the mechanism of EDM is still not clear yet,which hinders its further application and development.Nevertheless,the development of high-speed photography and numerical simulation in recent years has greatly promoted the understanding of EDM process.In this review,the researches on discharge channel characteristics and material removal mechanism during a single discharge are firstly summarized.The static and dynamic properties of discharge channels and the driving force of molten material removal are emphatically introduced.Secondly,the progress on the observation of gap environment during continuous discharge and the simulation of surface formation are described.Based on the above review,the future direction of EDM mechanism research is prospected.
作者
杨晓冬
李其
YANG Xiaodong;LI Qi(School of Mechatronics Engineering,Harbin Institute of Technology,Harbin 150001,China;Suzhou Electromachining Machine Tool Research Institute Co.,Ltd.,Suzhou 215011,China)
出处
《电加工与模具》
北大核心
2025年第1期1-14,共14页
Electromachining & Mould
基金
国家自然科学基金项目(52375419、51875133)。
关键词
电火花加工
加工机理
高速摄像
数值模拟
EDM
machining mechanism
high-speed photography
numerical simulation
