Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Friction Model for Sheet Metal Forming Analysis (Part1 : Experiment)

박판성형 해석용 마찰모델 (1부 : 실험)

  • 이봉현 (한양대학교 일반대학원) ;
  • 금영탁 (한양대학교 기계공학부)
  • Published : 2002.08.01
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Abstract

In order to find the effect of lubricant viscosity, sheet surface roughness, tool geometry, and forming speed on the frictional characteristics in sheet metal forming, a sheet metal friction tester was designed and manufactured and friction test of various sheet were performed. Friction test results showed that as the lubricant viscosity becomes lower, the friction coefficient is higher. When surface roughness is extremely low or high, the friction coefficient is relatively high. The result also show that as the punch radius and punch speed becomes bigger, the friction coefficient is smaller. Using experimental results, the mathematical expression between friction coefficient and lubricant viscosity, surface roughness, punch comer radius, or punch speed is also described.

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  3. 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
  4. Evaluation of Friction Characteristics for High-Strength-Steel Sheets Depending on Conditions vol.24, pp.6, 2015, https://doi.org/10.5228/KSTP.24.6.381
  5. Influence of Surface Roughness Change on Frictional Behavior of Sheet Steel for Each Forming Mode vol.19, pp.4, 2010, https://doi.org/10.5228/KSPP.2010.19.4.236