Journal
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING
Volume 15, Issue 6, Pages 1143-1149Publisher
KOREAN SOC PRECISION ENG
DOI: 10.1007/s12541-014-0449-z
Keywords
EDM; Hybrid process; Magnetic assisted force; Ultrasonic vibration
Funding
- National Science Council of the Republic of China, Taiwan [NSC 99-2221-E-252-006-MY3, NSC-98-2221-E-252-010]
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In this investigation, an ultrasonic vibration and an assisted magnetic force are integrated with the electrical discharge machining (EDM to develop a hybrid process of RDM with ultrasonic vibration and assisted magnetic force (EDMUVA), and then the hybrid process is adopted to explore the effects of the main machining parameters on the material removal rate (MRR), electrode wear rate (EWR), surface roughness (SR) and morphologies of the machined surface in machining SKD 61 mold steels. Moreovei; the effects on expelling the debris from the machining gap are also studied via evaluating the discharge waveforms, and analyzing the morphology of the machined surface. The bottleneck correlated with large area using EDM process would be overcome when the optimal parameters of the hybrid process of EDMUVAMF is obtained From the experimental results shown, the hybrid process of EDMUVAMF can improve the machining performance. The MRR was increased significantly and the SR was reduced to ameliorate the machining efficiency and machined surface quality. The hybrid process revealed the potential for the applications in large area via EDM technique.
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