Studies on grinding conditions affecting the quality of soft magnetic powder cores

Tomoyuki Ueno, Terukazu Tokuoka, Takao Nishioka, Kazuhito Ohashi, Shinya Tsukamoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Soft magnetic powder cores are made by pressurizing and molding pure iron powder covered with insulation film. The material is used as a component of electro-magnetic converter parts essential for automobiles, home electric appliances and electronic equipment. The material permits downsizing and higher performance of such equipment. The recent severer requirements for performance and dimensional accuracy need a new processing technology that warrants the required level of both magnetic performance and surface quality of the material. However in general, processing - grinding - soft magnetic powder cores can give rise to degradation of magnetic performance and/or chipping or plucking of the ground surface due to the mechanical damage of the insulation film and/or loss of structural particles from the material due to the increase in grinding resistance. The authors performed basic studies for various grinding conditions and wheels that could possibly affect the quality of the material with a view to eliminating these problems. As a result, factors that affect the surface quality were identified, and a method that warrants a higher surface quality was proposed.

Original languageEnglish
Title of host publicationAdvances in Abrasive Technology XVII
EditorsJiwang Yan, Hideki Aoyama, Akinori Yui
PublisherTrans Tech Publications Ltd
Pages27-32
Number of pages6
ISBN (Electronic)9783038352211
DOIs
Publication statusPublished - Jan 1 2014
Event17th International Symposium on Advances in Abrasive Technology, ISAAT 2014 - Kailua, United States
Duration: Sep 22 2014Sep 25 2014

Publication series

NameAdvanced Materials Research
Volume1017
ISSN (Print)1022-6680
ISSN (Electronic)1662-8985

Other

Other17th International Symposium on Advances in Abrasive Technology, ISAAT 2014
CountryUnited States
CityKailua
Period9/22/149/25/14

Keywords

  • CBN wheel
  • Chip size
  • Face mill grinding
  • Proportion of chipped area
  • Soft magnetic powder cores
  • Surface quality

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Ueno, T., Tokuoka, T., Nishioka, T., Ohashi, K., & Tsukamoto, S. (2014). Studies on grinding conditions affecting the quality of soft magnetic powder cores. In J. Yan, H. Aoyama, & A. Yui (Eds.), Advances in Abrasive Technology XVII (pp. 27-32). (Advanced Materials Research; Vol. 1017). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/AMR.1017.27