Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Tapping Machining Characteristics of Titanium Hard-to-Cut Material

티타늄 난삭재의 탭핑 가공 특성

  • 이호창 (경남과학기술대학교 산업대학원 자동차공학과) ;
  • 김해지 (경남과학기술대학교 자동차공학과) ;
  • 김남경 (경남과학기술대학교 자동차공학과)
  • Received : 2011.01.04
  • Accepted : 2011.02.14
  • Published : 2011.02.28
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Abstract

This study compared and analyzed manual tapping and automatic tapping regarding tapping process characteristics of titanium hard-to-cut-material. Tapping process characteristics of titanium hard-to-cut-material are evaluated as the quality of a screw, wear of a tap, economic analysis, and cycle time etc. The type of screw threads after manual tapping is formed as an irregular type of screw threads, and perfect screw threads are created after automatic tapping. In addition, the chip type after manual tapping process is formed as the discontinuous chip due to work hardening, and the powder type of chip after automatic tapping process is created. In terms of cycle time, an automatic tapping process is shortened by 70% compared to manual tapping process. Insert tip wear of an automatic tapping shown in the process of 5-hole tapping is not found, but hand tap wear for finish cutting is most severe.

Keywords

References

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