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Improving energy utilization efficiency of electrical discharge milling in titanium alloys machining

  • Mechanical Engineering, Control Science and Information Engineering
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Abstract

Electrical discharge milling (ED-milling) can be a good choice for titanium alloys machining and it was proven that its machining efficiency can be improved to compete with mechanical cutting. In order to improve energy utilization efficiency of ED-milling process, unstable arc discharge and stable arc discharge combined with normal discharge were implemented for material removal by adjusting servo control strategy. The influence of electrode rotating speed and dielectric flushing pressure on machining performance was investigated by experiments. It was found that the rotating of electrode could move the position of discharge plasma channel, and high pressure flushing could wash melted debris out the discharge gap effectively. Both electrode rotating motion and high pressure flushing are contributed to the improvement of machining efficiency.

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Authors and Affiliations

  1. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, 150001, China

    Cheng-bo Guo  (郭成波), Dong-bo Wei  (韦东波) & Shi-chun Di  (狄士春)

  2. State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai, 200240, China

    Dong-bo Wei  (韦东波)

Authors
  1. Cheng-bo Guo  (郭成波)
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  2. Dong-bo Wei  (韦东波)
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  3. Shi-chun Di  (狄士春)
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Corresponding author

Correspondence to Shi-chun Di  (狄士春).

Additional information

Foundation item: Project(MSV-2013-09) supported by State Key Laboratory of Mechanical System and Vibration, China

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Guo, Cb., Wei, Db. & Di, Sc. Improving energy utilization efficiency of electrical discharge milling in titanium alloys machining. J. Cent. South Univ. 23, 2550–2557 (2016). https://doi.org/10.1007/s11771-016-3316-5

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  • DOI: https://doi.org/10.1007/s11771-016-3316-5

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