标题：Effects of Different Electrode Materials on High-speed Electrical Discharge Machining of W9Mo3Cr4V
作者：Zhu, Guang; Zhang, Qinhe; Wang, Kan; Huang, Yuhua; Zhang, Jianhua
作者机构：[Zhu, Guang; Zhang, Qinhe; Wang, Kan; Huang, Yuhua; Zhang, Jianhua] Shandong Univ, Sch Mech Engn, Minist Educ, Key Lab High Efficiency & Clean Mech Ma 更多
会议名称：19th CIRP Conference on Electro Physical and Chemical Machining
会议日期：APR 23-27, 2017
来源：19TH CIRP CONFERENCE ON ELECTRO PHYSICAL AND CHEMICAL MACHINING
关键词：electrical discharge machining; high-speed processing; electrical arc; machining; electrode materials; processing parameters
摘要：In order to break through the limit in material removal rate (MRR) of electrical discharge machining (EDM), electric arc machining (EAM), as a new and high-speed processing method, is used to machine difficult-to-machine materials. This method has an exciting high MRR with tens times increase in EDM and a low relative electrode wear ratio (REWR) when machining W9Mo3Cr4V. The electrode material is an important factor that affects the processing cost and quality of EAM. In this paper, traditionally conductive metal materials were used as electrode materials to process W9Mo3Cr4V in EAM, including brass (H62), copper (T2), stainless steel 304, aluminum alloy 6061 and graphite (C). Experimental results show that tubular graphite (C) is the best electrode material for EAM. Additionally, when tubular graphite with 16mm external diameter and 12mm internal diameter is used as tool electrode, the effects of processing parameters (peak current, electrode polarity, electrode speed and flushing pressure) are also investigated in present study. MRR, REWR, white layer thickness (WLT) and surface roughness (Rz) are selected as output responses. (c) 2018 The Authors. Published by Elsevier B.V.