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Measurement of discharge reaction force under different discharge conditions in WEDM using Hopkinson bar method.

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Title: Measurement of discharge reaction force under different discharge conditions in WEDM using Hopkinson bar method.
Authors: Gu, Wenting1,2 (AUTHOR) sjtu-gwt@sjtu.edu.cn, Kunieda, Masanori2 (AUTHOR) kunieda@edm.t.u-tokyo.ac.jp, Zhao, Wansheng1 (AUTHOR) zws@sjtu.edu.cn
Source: Precision Engineering. Jan2023, Vol. 79, p52-59. 8p.
Subjects: Reaction forces, Pulse generators, Pulse circuits, Deionization of water
Abstract: This paper reports the measurement of discharge reaction force with respect to the discharge bubble in wire electrical discharge machining (WEDM) using the horizontal Hopkinson bar method. Using an RC discharge pulse generator circuit which is of the single pulse control functionality, independent discharges are ignited in the gap between the wire electrode and end face of the Hopkinson bar while deionized water is continuously flushed. The reaction force acting on the Hopkinson bar from a single discharge was measured without the interference of subsequent discharges. The peak value of measured discharge reaction force reached several Newtons level in both finishing and roughing. The waveform patterns of discharge reaction force in WEDM were found to be significantly different from that in sinking EDM. The first peak of the force acting on the Hopkinson bar was found to be equivalent to the force acting on the wire electrode based on the observation of the interelectrode gap using a high-speed camera. Moreover, the influences of different discharge conditions on the force were investigated. • Discharge reaction force generated from a single discharge using Hopkinson bar method was measured in WEDM. • Force peak reaches several Newtons. • First peak timing and discharge duration were studied. • Comparison between finishing and roughing of the force peak is given. • Influences of gap width and discharge polarity on the discharge reaction force are given. [ABSTRACT FROM AUTHOR]
Copyright of Precision Engineering is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 160863844
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Measurement of discharge reaction force under different discharge conditions in WEDM using Hopkinson bar method.
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Gu%2C+Wenting%22">Gu, Wenting</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> sjtu-gwt@sjtu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Kunieda%2C+Masanori%22">Kunieda, Masanori</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> kunieda@edm.t.u-tokyo.ac.jp</i><br /><searchLink fieldCode="AR" term="%22Zhao%2C+Wansheng%22">Zhao, Wansheng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zws@sjtu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Precision+Engineering%22">Precision Engineering</searchLink>. Jan2023, Vol. 79, p52-59. 8p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Reaction+forces%22">Reaction forces</searchLink><br /><searchLink fieldCode="DE" term="%22Pulse+generators%22">Pulse generators</searchLink><br /><searchLink fieldCode="DE" term="%22Pulse+circuits%22">Pulse circuits</searchLink><br /><searchLink fieldCode="DE" term="%22Deionization+of+water%22">Deionization of water</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This paper reports the measurement of discharge reaction force with respect to the discharge bubble in wire electrical discharge machining (WEDM) using the horizontal Hopkinson bar method. Using an RC discharge pulse generator circuit which is of the single pulse control functionality, independent discharges are ignited in the gap between the wire electrode and end face of the Hopkinson bar while deionized water is continuously flushed. The reaction force acting on the Hopkinson bar from a single discharge was measured without the interference of subsequent discharges. The peak value of measured discharge reaction force reached several Newtons level in both finishing and roughing. The waveform patterns of discharge reaction force in WEDM were found to be significantly different from that in sinking EDM. The first peak of the force acting on the Hopkinson bar was found to be equivalent to the force acting on the wire electrode based on the observation of the interelectrode gap using a high-speed camera. Moreover, the influences of different discharge conditions on the force were investigated. • Discharge reaction force generated from a single discharge using Hopkinson bar method was measured in WEDM. • Force peak reaches several Newtons. • First peak timing and discharge duration were studied. • Comparison between finishing and roughing of the force peak is given. • Influences of gap width and discharge polarity on the discharge reaction force are given. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Precision Engineering is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.precisioneng.2022.09.001
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 8
        StartPage: 52
    Subjects:
      – SubjectFull: Reaction forces
        Type: general
      – SubjectFull: Pulse generators
        Type: general
      – SubjectFull: Pulse circuits
        Type: general
      – SubjectFull: Deionization of water
        Type: general
    Titles:
      – TitleFull: Measurement of discharge reaction force under different discharge conditions in WEDM using Hopkinson bar method.
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            NameFull: Gu, Wenting
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            NameFull: Kunieda, Masanori
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            NameFull: Zhao, Wansheng
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          Dates:
            – D: 01
              M: 01
              Text: Jan2023
              Type: published
              Y: 2023
          Identifiers:
            – Type: issn-print
              Value: 01416359
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              Value: 79
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            – TitleFull: Precision Engineering
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