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박판성형 마찰거동에 미치는 블랭크 홀딩력의 영향

Effects of Blank Holding Force on the Friction Behavior in Sheet Metal Forming

  • 심진우 (한양대학교 일반대학원) ;
  • 금영탁 (한양대학교 기계공학부)
  • 발행 : 2007.08.01

초록

In order to examine the effect of the blank holding force on the friction behavior in the sheet metal forming, a sheet metal friction tester is designed and manufactured, which can measure friction forces in various forming conditions such as lubrication, die roughness, drawing speed, radius of die corner, blank holding force, etc., and the friction tests are performed, in which friction coefficients in various blank holding forces and pulling speeds are calculated using Coulomb's friction law. The friction test reveals that friction coefficient decreases as the blank holding force, the drawing speed and lubricant viscosity increase together or individually.

키워드

참고문헌

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피인용 문헌

  1. Contact Pressure Effect on Frictional Behavior of Sheet Steel for Automotive Stamping vol.20, pp.2, 2011, https://doi.org/10.5228/KSTP.2011.20.2.99
  2. Influence of Blankholding Force and Blank Diameter on the Drawability and Quality of Very Small Cylindrical Cups vol.23, pp.8, 2014, https://doi.org/10.5228/KSTP.2014.23.8.489