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Development of Novel Long-Life CBN Grinding Wheel at High Efficiency Condition

[+] Author Affiliations
Kouichi Yoshimura, Akihiro Mizuno, Takeshi Mishima, Kazumasa Yoshida, Hiroshi Hoshino

Noritake Co., Limited, Nagoya, Aichi, Japan

Fukuo Hashimoto

The Timken Company, North Canton, OH

Paper No. MSEC2014-4114, pp. V002T02A016; 6 pages
doi:10.1115/MSEC2014-4114
From:
  • ASME 2014 International Manufacturing Science and Engineering Conference collocated with the JSME 2014 International Conference on Materials and Processing and the 42nd North American Manufacturing Research Conference
  • Volume 2: Processing
  • Detroit, Michigan, USA, June 9–13, 2014
  • Conference Sponsors: Manufacturing Engineering Division
  • ISBN: 978-0-7918-4581-3
  • Copyright © 2014 by ASME

abstract

Vitrified CBN wheels have been widely employed for precision and high efficiency grinding in industry. However, the high stock removal grinding tends to generate the grinding burning which causes tensile residual stress, cracking and hardness softening on the ground surfaces, and it leads to shorten the wheel life. In order to overcome these issues and extend the wheel life, a novel vitrified CBN wheel has been developed. This paper describes features of bond material, and wheel structure applied to the developed CBN wheels. Grinding performances of the new wheel under high efficiency conditions are discussed. Finally it concludes that the newly developed wheel having uniform dispersion structure with new bond with high bending strength significantly improves the wheel life and the ground surface quality. The mechanism for achieving the high performance is discussed from the view point of grinding fundamentals.

Copyright © 2014 by ASME

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