Discharge current effect on machining characteristics and mechanical properties of aluminum alloy 6061 workpiece produced by electric discharging machining process
In this study, machining characteristics and mechanical properties of aluminum (Al) alloy 6061 were investigated with variations in discharge currents in electrical discharge machining. The machining characteristics included the electrode wear rate, material removal rate, and roughness. Mechanical p...
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Online Access: | https://doi.org/10.1177/1687814017730756 |
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doaj-6c7bb15a61ae442387094880c0330aae2020-11-25T03:22:47ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402017-11-01910.1177/1687814017730756Discharge current effect on machining characteristics and mechanical properties of aluminum alloy 6061 workpiece produced by electric discharging machining processChin-Guo Kuo0Chun-Yao Hsu1Jung-Hsuan Chen2Po-Wei Lee3Department of Industrial Education, National Taiwan Normal University, Taipei, TaiwanDepartment of Mechanical Engineering, Lunghwa University of Science and Technology, Taoyuan, TaiwanDepartment of Industrial Education, National Taiwan Normal University, Taipei, TaiwanDepartment of Industrial Education, National Taiwan Normal University, Taipei, TaiwanIn this study, machining characteristics and mechanical properties of aluminum (Al) alloy 6061 were investigated with variations in discharge currents in electrical discharge machining. The machining characteristics included the electrode wear rate, material removal rate, and roughness. Mechanical properties such as the fatigue life and surface hardness were also discussed in this work. Experimental results showed that better fatigue property of the electrical discharge machined workpiece could be obtained when the discharge current was 15 A; meanwhile, the thickness of the white layer was around 19 µm. The relationship between the thickness of the white layer and the fatigue lifetime had a very strong positive correlation. Furthermore, the repeatability and stability of the machining process were explored by the quality control chart and Shewhart control chart. The results indicated that the electrical discharge machining process under optimum operating conditions was a well-controlled procedure and stable over time.https://doi.org/10.1177/1687814017730756 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Chin-Guo Kuo Chun-Yao Hsu Jung-Hsuan Chen Po-Wei Lee |
spellingShingle |
Chin-Guo Kuo Chun-Yao Hsu Jung-Hsuan Chen Po-Wei Lee Discharge current effect on machining characteristics and mechanical properties of aluminum alloy 6061 workpiece produced by electric discharging machining process Advances in Mechanical Engineering |
author_facet |
Chin-Guo Kuo Chun-Yao Hsu Jung-Hsuan Chen Po-Wei Lee |
author_sort |
Chin-Guo Kuo |
title |
Discharge current effect on machining characteristics and mechanical properties of aluminum alloy 6061 workpiece produced by electric discharging machining process |
title_short |
Discharge current effect on machining characteristics and mechanical properties of aluminum alloy 6061 workpiece produced by electric discharging machining process |
title_full |
Discharge current effect on machining characteristics and mechanical properties of aluminum alloy 6061 workpiece produced by electric discharging machining process |
title_fullStr |
Discharge current effect on machining characteristics and mechanical properties of aluminum alloy 6061 workpiece produced by electric discharging machining process |
title_full_unstemmed |
Discharge current effect on machining characteristics and mechanical properties of aluminum alloy 6061 workpiece produced by electric discharging machining process |
title_sort |
discharge current effect on machining characteristics and mechanical properties of aluminum alloy 6061 workpiece produced by electric discharging machining process |
publisher |
SAGE Publishing |
series |
Advances in Mechanical Engineering |
issn |
1687-8140 |
publishDate |
2017-11-01 |
description |
In this study, machining characteristics and mechanical properties of aluminum (Al) alloy 6061 were investigated with variations in discharge currents in electrical discharge machining. The machining characteristics included the electrode wear rate, material removal rate, and roughness. Mechanical properties such as the fatigue life and surface hardness were also discussed in this work. Experimental results showed that better fatigue property of the electrical discharge machined workpiece could be obtained when the discharge current was 15 A; meanwhile, the thickness of the white layer was around 19 µm. The relationship between the thickness of the white layer and the fatigue lifetime had a very strong positive correlation. Furthermore, the repeatability and stability of the machining process were explored by the quality control chart and Shewhart control chart. The results indicated that the electrical discharge machining process under optimum operating conditions was a well-controlled procedure and stable over time. |
url |
https://doi.org/10.1177/1687814017730756 |
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