• Title/Summary/Keyword: Polycrysalline Diamond

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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;Kim, Su-Jin
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.21 no.5
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    • pp.77-83
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    • 2022
  • 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.