高品质大深径比微孔电火花加工研究现状  

Research Status of High-quality Small Hole with Large Aspect Ratio in EDM

作　　者：岳晓明 李国栋 聂维梁 林晋宇 吴兆云 YUE Xiaoming;LI Guodong;NIE Weiliang;LIN Jinyu;WU Zhaoyun(School of Mechanical Engineering,Shandong University,Jinan 250061,China;School of Mechanical Engineering,Jiangnan University,Wuxi 214122,China)

机构地区：[1]山东大学机械工程学院,山东济南250061 [2]江南大学机械工程学院,江苏无锡214122

出　　处：《电加工与模具》2024年第4期10-19,共10页Electromachining & Mould

基　　金：国家重点研发青年科学家项目(2021YFF0501700);山东省自然科学基金面上项目(ZR2023ME222);无锡市“太湖之光”科技攻关(基础研究)项目(K20221012)

摘　　要：针对大深径比深微孔加工面临单一维度下大深径比高导致的排屑难等问题,综述了利用电火花技术加工深微孔的方法及演变。从工具电极的结构设计、运动规划和能场辅助方式等常用方法论述了目前电火花加工深微孔现状,同时介绍了提升深微孔加工表面质量的主要方法,最后探讨了当前电火花加工深微孔面临的瓶颈及未来发展趋势。The hole machining faces the difficulty of debris evacuation in the case of large aspect ratio(LAR),this paper mainly reviews the evolution of machining deep hole with EDM and related methods.The current status of deep hole machined by EDM is discussed from the aspects of tool electrode design,path planning and extra assistance from energy fields.Meanwhile,methods to improve the surface quality of micro hole are introduced.Finally,the critical obstacles and future trends in the LAR micro hole machining with EDM are discussed.

关 键 词：电火花加工 大深径比微孔 排屑 加工表面质量 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]