Cutting performance of boron-doped diamond coated tools in drilling of CFRP

Alexander Soldatov, Akira Okada, Kensuke Uemura, Hitoshi Ogawa

Research output: Contribution to conferencePaper

Abstract

This study investigated the effect of boron-doped diamond coated drill on cutting performance when drilling CFRP. The boron-doped diamond coating was deposited on cemented tungsten carbide with cobalt (WC-Co) drills with the hot filament chemical vapor deposition (HFCVD) method, adopting trimethoxyborane as dopant source. The coating characteristics, such as surface morphology and carbon bonds, were investigated by scanning electron microscopy (SEM) and Raman spectroscopy. Drilling tests included tool's flank wear determination, measurement of thrust force and torque. For comparison, the conventional diamond coated and WC-Co drills were also used in the tests. Furthermore, drilled holes were inspected in terms of hole size and delamination. According to the results, boron-doped diamond coated drill showed advantage in tool life and quality of drilled holes over the conventional diamond coated and the WC-Co drills.

Original languageEnglish
Publication statusPublished - Nov 13 2017
Event9th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2017 - Hiroshima City, Japan
Duration: Nov 13 2017Nov 17 2017

Other

Other9th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2017
CountryJapan
CityHiroshima City
Period11/13/1711/17/17

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Keywords

  • Boron-doped
  • CFRP
  • Chemical vapor deposition (CVD)
  • Diamond coating
  • Drilling

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

Cite this

Soldatov, A., Okada, A., Uemura, K., & Ogawa, H. (2017). Cutting performance of boron-doped diamond coated tools in drilling of CFRP. Paper presented at 9th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2017, Hiroshima City, Japan.