Improvement of MRR and surface roughness during electrical discharge machining (EDM) using aluminum oxide powder mixed dielectric fluid

International Conference on Advances in Manufacturing and Materials Engineering 2017

机械制造;材料科学

Khan, A.A.^1 ; Mohiuddin, A.K.M.^2 ; Latif, M.A.A.^1

Department of Manufacturing and Materials Engineering, International Islamic University Malaysia (IIUM), Jalan Gombak, Kuala Lumpur

53100, Malaysia^1

Department of Mechanical Engineering, International Islamic University Malaysia (IIUM), Jalan Gombak, Kuala Lumpur

53100, Malaysia^2

关键词: Aluminum oxide powders;    Appropriate models;    Design of the experiment;    Dielectric fluid;    Electrical discharge machining;    Experimental plans;    Material removal rate;    Stainless steel AISI 304;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/290/1/012063/pdf
DOI  :  10.1088/1757-899X/290/1/012063

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

This paper discusses the effect of aluminium oxide (Al203) addition to dielectric fluid during electrical discharge machining (EDM). Aluminium oxide was added to the dielectric used in the EDM process to improve its performance when machining the stainless steel AISI 304, while copper was used as the electrode. Effect of the concentration of Al203(0.3 mg/L) in dielectric fluid was compared with EDM without any addition of Al203. Surface quality of stainless steel and the material removal rate were investigated. Design of the experiment (DOE) was used for the experimental plan. Statistical analysis was done using ANOVA and then appropriate model was designated. The experimental results show that with dispersing of aluminium oxide in dielectric fluid surface roughness was improved while the material removal rate (MRR) was increased to some extent. These indicate the improvement of EDM performance using aluminium oxide in dielectric fluid. It was also found that with increase in pulse on time both MRR and surface roughness increase sharply.