Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Investigation of Influences of Synchronizing Errors on the Tapping Characteristics and Thread Quality in the Ultra-High-Speed Tapping

초고속 태핑에서 동기오차가 태평특성과 나사품질에 미치는 영향 분석

  • 이돈진 (부산대학교 지능기계공학과) ;
  • 김선호 (한국기계연구원 지능형정밀기계연구부) ;
  • 안중환 (부산대학교 기계공학부)
  • Published : 2003.09.01
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Abstract

Synchronizing errors between the spindle motor and the z-axis motor directly influences the cutting characteristics and the thread quality in tapping, because the tapping process is accomplished by synchronizing the movement of the z-axis with the revolutionary spindle motion. Generally synchronizing errors are decided by tile parameters of the servo system and commanded velocity. The excessive synchronizing errors which are induced by the parameter mismatch and high cutting velocity can cause tap breakage due to the abrupt increase of cutting torque or damage the thread accuracy by overcutting the already cut threads. In this paper, the influences of the synchronizing errors on the tapping characteristics in the ultra high-speed tapping will be described and a minimum level of synchronizing errors necessary to maintain the quality of the cut thread will be presented.

Keywords

References

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