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Machining characteristics of hybrid EDM with ultrasonic vibration and assisted magnetic force

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Abstract

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 EDM with ultrasonic vibration and assisted magnetic force (EDMUVAMF), 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. Moreover, 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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Abbreviations

EDM:

electrical discharge machining

USV:

ultrasonic vibration

AMF:

assisted magnetic force

EDMUVAMF:

hybrid process of electrical discharge machining with ultrasonic vibration and assisted magnetic force

MRR:

material removal rate

EWR:

electrode wear rate

SR:

surface roughness

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Authors and Affiliations

  1. Department of Mechanical Engineering, Nan Kai University of Technology, Nantou County, 54243, Taiwan

    Yan-Cherng Lin & Han-Ming Chow

  2. Department of Industrial Management, Nan Kai University of Technology, Nantou County, 54243, Taiwan

    Fang-Pin Chuang

  3. Department of Mechanical Engineering, Chien Hsin University of Science and Technology, Taoyuan, 32097, Taiwan

    A-Cheng Wang

Authors
  1. Yan-Cherng Lin
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  2. Fang-Pin Chuang
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  3. A-Cheng Wang
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  4. Han-Ming Chow
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Correspondence to Yan-Cherng Lin.

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Lin, YC., Chuang, FP., Wang, AC. et al. Machining characteristics of hybrid EDM with ultrasonic vibration and assisted magnetic force. Int. J. Precis. Eng. Manuf. 15, 1143–1149 (2014). https://doi.org/10.1007/s12541-014-0449-z

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  • DOI: https://doi.org/10.1007/s12541-014-0449-z

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