Authors: Yonghong Liu Renjie Ji Yanzhen Zhang Haifeng Zhang
Publish Date: 2009/08/23
Volume: 47, Issue: 1-4, Pages: 403-409
Abstract
Machining fluid is a primary factor that affects the material removal rate surface quality and electrode wear of electrical discharge machining EDM Kerosene is the most commonly used working fluid in die sinking EDM but it shows low ignition temperature and high volatility if the improper operations are undertaken it can cause conflagration Using distilled water or pure water as the machining fluid in EDM no fire hazard occurs and the working environment is well however using distilled water or pure water as the machining fluid in EDM the material removal rate of machining large surface is low and the machine tool is easily eroded Emulsion1 and emulsion2 used as working fluid in die sinking EDM are developed The compositions of emulsion1 and emulsion2 are introduced In comparison with kerosene emulsion1 and emulsion2 used in EDM show high material removal rate low surface roughness high discharge gap and good working environment The electrode wear ratio in emulsion1 is lower than that in kerosene The electrode wear ratio in emulsion2 is higher than that in kerosene The effects of composition and concentration of emulsifier on the emulsion property and EDM performance have been investigated The comparative tests of EDM performance with kerosene emulsion1 and emulsion2 have been done
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