Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0890-6955(02)00026-3
Title: Surface modification of Al-Zn-Mg alloy by combined electrical discharge machining with ball burnish machining
Authors: Lim, H.S. 
Fathima, K.
Senthil Kumar, A. 
Rahman, M. 
Keywords: Ball burnish machining
Combined process
Electric discharge machining
Surface modification
Surface roughness
Issue Date: Jun-2002
Citation: Lim, H.S., Fathima, K., Senthil Kumar, A., Rahman, M. (2002-06). Surface modification of Al-Zn-Mg alloy by combined electrical discharge machining with ball burnish machining. International Journal of Machine Tools and Manufacture 42 (8) : 925-934. ScholarBank@NUS Repository. https://doi.org/10.1016/S0890-6955(02)00026-3
Abstract: The study investigated the feasibility of modifying the surface of Al-Zn-Mg alloy by a combined process of electric discharge machining (EDM) with ball burnish machining (BBM). A novel process that integrates EDM and BBM is also developed to conduct experiments on an electric discharge machine. Machining parameters of the combined process, including machining polarity, peak current, power supply voltage, and the protruding of ZrO2, are chosen to determine their effects on material removal rate, surface roughness and the improvement ratio of surface roughness. In addition, the extent to which the combined process affects surface modification is also evaluated by microhardness and corrosion resistance tests. Experimental results indicate that the combined process of EDM with BBM can effectively improve the surface roughness to obtain a fine-finishing and flat surface. The micropores and cracks caused from EDM are eliminated during the process as well. Furthermore, such a process can reinforce and increase the corrosion resistance of the machined surface after machining. © 2002 Elsevier Science Ltd. All rights reserved.
Source Title: International Journal of Machine Tools and Manufacture
URI: http://scholarbank.nus.edu.sg/handle/10635/85705
ISSN: 08906955
DOI: 10.1016/S0890-6955(02)00026-3
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