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

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Comparison of TiAlN DLC and PCD Tool Wear in CFRP Drilling

CFRP 드릴링에서 TiAlN DLC 코팅과 PCD의 공구마모 비교

  • Baek, Jong-Hyun (School of Mechanical and Aerospace Engineering, Gyeongsang National University) ;
  • Kim, Su-Jin (School of Mechanical and Aerospace Engineering, Gyeongsang National University)
  • 백종현 (경상국립대학교 기계항공공학부) ;
  • 김수진 (경상국립대학교 기계항공공학부)
  • Received : 2022.03.24
  • Accepted : 2022.04.18
  • Published : 2022.05.31
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Abstract

A high-hardness tool material is required to reduce extreme abrasive wear when drilling carbon fiber reinforced plastic (CFRP). Single-crystal diamond is the hardest material in the world, but it is very expensive to be used as a cutting tool. Polycrystalline diamond (PCD) is a diamond grit fused at a high temperature and pressure, and diamond-like carbon (DLC) is an amorphous carbon with high hardness. This study compares DLC coatings and PCD inserts to conventional TiAlN-coated tungsten carbide drills. In fiberglass and carbon fiber reinforced polymer drilling, the tool wear of DLC-coated carbide was approximately half that of TiAlN-coated tools, and slight tool wear occurred in the case of PCD insert end drills.

Keywords

Acknowledgement

이 논문은 2021년도 교육부 지자체-대학 협력기반 지역혁신 사업(2021RIS-003)의 연구비 지원에 의하여 연구되었음.

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