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

  • 제14권2호
  • /
  • Pages.25-30
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  • 2015
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  • 1598-6721(pISSN)
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  • 2288-0771(eISSN)
한국기계가공학회 (The Korean Society of Manufacturing Process Engineers)
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초소형 PCD 공구 제작을 위한 확산접합부의 형상에 따른 인장강도 특성

Tensile Strength Properties of the Diffusion Bonding Copula Shape for Micro PCD Tool Fabrication

  • 투고 : 2014.10.31
  • 심사 : 2015.03.25
  • 발행 : 2015.04.30
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초록

This study involved the fabrication of precision machine tools using a polycrystalline diamond tip [sintered PCD and cemented carbide (WC-Co) tip] and WC-Co shanks via diffusion bonding with a paste-type nickel alloy filler metal. Diffusion bonding is a process whereby two materials are pressed together at high temperature and high pressure for a sufficient period of time to allow significant atomic diffusion to occur. For smooth progress, a filler metal of nickel alloy was used at the interface. Optical microscopy images were used to observe the copula of the bonded layer. It was confirmed that cracks occurred near the junction in all cases. The tensile strength of the bond was measured using a universal testing machine (UTM) with WC-Co proportional test specimens.

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참고문헌

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