Study on the characteristics of electrical discharge machining using dielectric with surfactant |
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| Authors: | Kun Ling Wu Biing Hwa Yan Jyh-Wei Lee Chun Gian Ding |
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| Affiliation: | 1. Department of Mechanical Engineering, Tungnan University, #152 Sec. 3, Pei-Shen Road, Taipei, Taiwan;2. Department of Mechanical Engineering, National Central University, Chung-Li 32054, Taiwan;3. Research Center for Micro/Nanotechnology, Tungnan University, #152 Sec. 3, Pei-Shen Road, Taipei, Taiwan;1. Ferozepur college of Engg and Technology, Ferozshah, Ferozepur142052, India;2. Shaeed Bhagat singh state techanical campus, Ferozepur152004, India;1. Research Scholar, School of Engineering, RK University, Rajkot 360020, India;2. Mechanical Engineering Department, Government Engineering College, Bhavnagar 364001, India;3. Mechanical Engineering Department, Government Engineering College, Bhuj 370001, India;4. Mechanical Engineering Department, School of Engineering, RK University, Rajkot 360020, India;1. Department of Mechanical Engineering, National Institute of Technical Teachers’ Training and Research (NITTTR), Chandigarh, India;1. Department of Industrial and Manufacturing Engineering, University of Engineering and Technology, Lahore, 54890, Pakistan;2. Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China;3. Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan, China;4. Mechanical Engineering, Imperial College London, Exhibition Rd., SW7 2AZ, London, UK;5. Design, Manufacturing & Engineering Management, University of Strathclyde, Glasgow, G1 1XJ, Scotland, UK;6. School of Electrical and Information Engineering, Tianjin University, China;7. Raytheon Chair for Systems Engineering, Advanced Manufacturing Institute, King Saud University, Riyadh, 11421, Saudi Arabia;1. Department of Mechatronics Engineering, SRM University, Kattankulathur, India;2. Department of Mechanical Engineering, CEG Campus, Anna University, Chennai, India |
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| Abstract: | This research mainly explores the influence of surfactant on the characteristics of electrical discharge machining (EDM) process on mold steel (SKD61). In this study, particle agglomeration is reduced after surfactant molecules cover the surface of debris and carbon dregs in kerosene solution. Debris is evenly dispersed in dielectric to improve the effects of carbon accumulation and dreg discharge, and reduce the unstable concentrated discharge. The EDM parameters, such as peak current, pulse duration, open voltage and gap voltage are studied in this paper. The experimental results show that after the addition of Span 20 (30 g/L) to dielectric, the conductivity of dielectric is increased. The machining efficiency is thus increased due to a shorter relay time of electrical discharge. When proper working parameters are chosen, the material removal rate is improved by as high as 40–80%. Although the improvement of surface roughness is not obvious, the surface roughness is not deteriorated since the material removal rate is great. |
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