Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Evaluation of Frictional Characteristic of Galvannealed sheet steel with different annealing temperatures at Lower Normal Loads

저면압 영역에서 합금화 온도에 따른 합금화용융아연도금 강판의 마찰특성 평가

  • 이정민 (부산대학교 정밀기계공학화 대학원) ;
  • 전성진 (부산대학교 정밀기계공학화 대학원) ;
  • 김동환 (진주국제대학교 자동차공학과) ;
  • 김동진 (POSCO 자동차강재연구센터) ;
  • 박성호 (POSCO 자동차강재연구센터) ;
  • 김병민 (부산대학교 정밀정형 및 금형가공연구소)
  • Published : 2006.04.01
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Abstract

This paper is designed to estimate friction and powdering characteristic of coating layer on galvannealed sheet steel with different annealing temperature, which is 465, 505, 515 and $540^{\circ}C$, Estimations of powdering and friction were done using a $60^{\circ}$ bending test and one side friction test, respectively. In order to obviously understand the effect of coatings on friction cross-section of coatings before and after friction test was also observed by SEM. The results show that powdering of coatings is increased with increasing of annealing temperature and that friction characteristic greatly depends on powdering which leads to increase of real contact area between tools and coatings.

Keywords

References

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