Micro electrical discharge machining of small hole in TC4 alloy

作     者：LI Mao-sheng CHI Guan-xin WANG Zhen-long WANG Yu-kui DAI Li 李茂盛;迟关心;王振龙;王玉魁;戴立

作者机构：Key Laboratory of Micro-Systems and Micro-Structures Manufacturing of Ministry of EducationHarbin Institute of TechnologyHarbin 150001China School of Mechatronics EngineeringHarbin Institute of TechnologyHarbin 150001China 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2009年第19卷第S02期

页      面：434-439页

核心收录：

学科分类：0806[工学-冶金工程] 08[工学] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0813[工学-建筑学] 0703[理学-化学] 0802[工学-机械工程] 0814[工学-土木工程] 0702[理学-物理学] 080201[工学-机械制造及其自动化] 

基　　金：Project(2006AA04Z323)supported by High-tech Research and Development Program of China 

主　　题：TC4 alloy micro electrical discharge machining deeply small hole multi-axis micro-EDM machine tool 

摘      要：Aiming at machining deeply small holes in TC4 alloy,a series of experiments were carried out on a self-developed multi-axis micro electrical discharge machining(micro-EDM)machine *** improve machining efficiency and decrease relative wear of electrode in machining deeply small hole in TC4 alloy,many factors in micro-EDM,such as polarity,electrical parameters and supplying ways of working fluid were *** results show that positive polarity machining is far superior to negative polarity machining;it is more optimal when open-circuit voltage,pulse width and pulse interval are 130 V,5μs and 15μs respectively on the self developed multi-axis micro-EDM machine tool;when flushing method is applied in micro-EDM,the machining efficiency is higher and relative wear of electrode is smaller.