Effect of Filler Metal in High Vacuum Brazing of Diamond Tools

  • Song, Min-Seok (R & BD Center, Shinhan Diamond Industrial Co., Ltd.) ;
  • An, Sang-Jae (R & BD Center, Shinhan Diamond Industrial Co., Ltd.) ;
  • Lee, Sang-Jin (R & BD Center, Shinhan Diamond Industrial Co., Ltd.) ;
  • Cheong, Ki-Jeong (R & BD Center, Shinhan Diamond Industrial Co., Ltd.)
  • Published : 2006.09.24

Abstract

The purpose of this study was to examine the interfacial reaction between diamond grits and Ni-based, Ag-based, brazing filler metal, respectively. The morphology of the interface between diamond grits and Ni-based, filler metal exhibited a very good condition after this heat treatment. Cr-carbide and Ni-rich compounds were detected by XRD analysis in the vicinity of the interface between diamond grits and Ni-based, filler metal after vacuum induction brazing. Chromium carbide is considered to play an important role in the high bonding strength achieved between diamonds grits and the brazing alloy.

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