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Evaluation of a Drill Bit Button Arrangement for Enhanced Drilling Efficiency

천공 효율 향상을 위한 드릴비트 버튼배열 성능평가 방법

  • Kang, Hoon (Ultimate Manufacturing Technology R&BD Group, Korea Institute of Industrial Technology) ;
  • Cho, Jung Woo (Technology Convergence R&BD Group, Korea Institute of Industrial Technology) ;
  • Jeong, Myeong Sik (Ultimate Manufacturing Technology R&BD Group, Korea Institute of Industrial Technology) ;
  • Cho, Yong Jae (Ultimate Manufacturing Technology R&BD Group, Korea Institute of Industrial Technology) ;
  • Lee, Sang Kon (Ultimate Manufacturing Technology R&BD Group, Korea Institute of Industrial Technology) ;
  • Lee, Jae Wook (Ultimate Manufacturing Technology R&BD Group, Korea Institute of Industrial Technology)
  • 강훈 (한국생산기술연구원 극한제조기술연구실용화그룹) ;
  • 조정우 (한국생산기술연구원 융복합기술연구실용화그룹) ;
  • 정명식 (한국생산기술연구원 극한제조기술연구실용화그룹) ;
  • 조용재 (한국생산기술연구원 극한제조기술연구실용화그룹) ;
  • 이상곤 (한국생산기술연구원 극한제조기술연구실용화그룹) ;
  • 이재욱 (한국생산기술연구원 극한제조기술연구실용화그룹)
  • Received : 2015.01.11
  • Accepted : 2015.04.21
  • Published : 2015.06.01

Abstract

The drill bit, which directly transmits percussive forces and torque to the rock, is the core part of a rock drilling machine. For effective drilling, the button arrangement of a drill bit should be optimized because it is the most important design factor in determining drilling efficiency. Furthermore, a quantitative method is necessary to evaluate the button arrangement for the optimization of the drill bit button. Therefore, we propose a new method for the evaluation of the drill bit button arrangement using new evaluation indices, which include the overlapped impact area, blank area, and moment. Moreover, we verify the suitability of the proposed evaluation method by applying it to the conventional button arrangement.

Keywords

Button Arrangement Method;Drill Bit;Drilling Efficiency;Rock Drilling & Fragment;Drilling Deviation

Acknowledgement

Supported by : 산업통상자원부, 한국생산기술연구원

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