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Finite Element Analysis and Parameter Optimization for the Press Hemming of Automotive Closures
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 Title & Authors
Finite Element Analysis and Parameter Optimization for the Press Hemming of Automotive Closures
Kim, J.H.; Kwak, J.H.; Kim, S.H.; Ju, Y.H.; Shin, H.S.;
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In the current study, finite element analysis was conducted for the press hemming of automotive panels in order to predict various hemming defects such as roll-in and turn down. The analysis used the exact punch movement based on the cam location and considered the sealer between the inner and outer panels with an artificial contact thickness. The analysis results quantify the hemming defects especially at the flange edge in the matching region of the head lamp. A design of experiments along with the parameter study was used to obtain the optimum process parameters for minimizing hemming defects. The optimization process selects the intake angle, bending angle of the hemming punch, and the flange height of the outer panel. The optimum design process determines an appropriate tool angle and flange height to reduce the roll-in and turn-down as compared to the initial design.
Press Hemming;Finite Element Analysis;Optimization;Process Parameter;DOE;
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유한요소해석을 이용한 롤러헤밍 공정의 변형기구 분석,노재동;곽종환;김세호;주용현;김정호;신현식;

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