Surface performance of workpieces processed by electrical discharge machining in gas

作     者：李立青 白基成 郭永丰 王振龙 

作者机构：School of Mechatronical TechnologyHarbin Institute of Technology 

出 版 物：《Journal of Harbin Institute of Technology(New Series)》 (哈尔滨工业大学学报（英文版）)

年 卷 期：2009年第16卷第2期

页      面：255-259页

核心收录：

学科分类：0810[工学-信息与通信工程] 12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 07[理学] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 070105[理学-运筹学与控制论] 0802[工学-机械工程] 0701[理学-数学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 080201[工学-机械制造及其自动化] 

基　　金：Sponsored by the Fund for the Doctoral Program of Higher Education (RFDP) (Grant No. CBQQ24403007) the Innovation Fund of HIT(Grant No.CBQQ18400018) 

主　　题：electrical discharge machining in gas (dry EDM) surface performance 45 carbon steels 

摘      要：The surface performance of workpieces processed by electrical discharge machining in gas(dry EDM)was studied in this ***,the composition,micro hardness and recast layer of electrical discharge machined(EDMed)surface of 45 carbon steels in air were investigated through different test analysis *** results show that the workpiece surface EDMed in air contains a certain quantity of oxide,and oxidation occurs on the workpiece *** with the surface of workpieces processed in kerosene,fewer cracks exist on the dry EDMed workpiece surface,and the surface recast layer is thinner than that obtained by conventional *** micro hardness of workpieces machined by dry EDM method is lower than that machined in kerosene,and higher than that of the *** addition,experiments were conducted on the surface wear resistance of workpieces processed in air and kerosene using copper electrode and titanium alloy *** results indicate that the surface wear resistance of workpieces processed in air can be improved,and it is related with tool material and dielectric.