Evaluation of spark location distribution in wire EDM by high-speed observation

Masanori Nakazawa, Akira Okada, Toshiyuki Yamauchi, Yoshiyuki Uno

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In wire EDM using a fine wire electrode, uniform distribution of spark location is necessary to achieve high-performance machining. It is difficult to precisely evaluate the distribution of spark location by the conventional method. In this study, a new evaluation method by using a high-speed video camera is proposed. The locations of spark are analyzed using the recorded images during machining, Then, the effects of servo voltage, pulse interval time and wire running speed on the distribution of spark location are investigated by the new method. The new method clarified that spark distribution became uniform when servo voltage was high, pulse interval time was long, and wire running speed was low.

Original languageEnglish
Title of host publicationProceedings of the 5th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2009
Publication statusPublished - 2009
Event5th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2009 - Osaka, Japan
Duration: Dec 2 2009Dec 4 2009

Other

Other5th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2009
CountryJapan
CityOsaka
Period12/2/0912/4/09

Fingerprint

Electric sparks
Wire
Machining
High speed cameras
Electric potential
Video cameras
Electrodes

Keywords

  • Distribution of spark location
  • High-speed observation
  • Image analysis
  • Wire EDM

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

Cite this

Nakazawa, M., Okada, A., Yamauchi, T., & Uno, Y. (2009). Evaluation of spark location distribution in wire EDM by high-speed observation. In Proceedings of the 5th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2009

Evaluation of spark location distribution in wire EDM by high-speed observation. / Nakazawa, Masanori; Okada, Akira; Yamauchi, Toshiyuki; Uno, Yoshiyuki.

Proceedings of the 5th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2009. 2009.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nakazawa, M, Okada, A, Yamauchi, T & Uno, Y 2009, Evaluation of spark location distribution in wire EDM by high-speed observation. in Proceedings of the 5th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2009. 5th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2009, Osaka, Japan, 12/2/09.
Nakazawa M, Okada A, Yamauchi T, Uno Y. Evaluation of spark location distribution in wire EDM by high-speed observation. In Proceedings of the 5th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2009. 2009
Nakazawa, Masanori ; Okada, Akira ; Yamauchi, Toshiyuki ; Uno, Yoshiyuki. / Evaluation of spark location distribution in wire EDM by high-speed observation. Proceedings of the 5th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2009. 2009.
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