Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Springback Control of an Automotive Surround Molding Part Using Automatic Die Compensation Module

금형 자동 보정 방식을 이용한 자동차 서라운드 몰딩 부품의 스프링백 현상 제어

  • 이덕영 (대구대학교 공과대학 자동차.산업.기계공학부) ;
  • 최보성 ((재)울산산업진흥테크노파크 자동차부품혁신센터) ;
  • 황재현 ((재)울산산업진흥테크노파크 자동차부품혁신센터) ;
  • 백일기 ((재)울산산업진흥테크노파크 자동차부품혁신센터) ;
  • 최광용 (한국ESI(주) 기술지원사업부 VM지원팀)
  • Published : 2009.06.01
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Abstract

Springback, an elastic material recovery after the unloading of stamping tools, causes variations and inconsistencies of final part dimensions. Recently, narrow and long surround molding parts around door frame are applied to high grade automobiles, but there are great difficulties in their die development, construction and tryout because of several springback modes including vertical movement and twist during flange forming process of them. So it is very important to predict springback's quantities of a surround molding part and, moreover, to compensate the die for them adequately, when they can't be corrected by the restrike operation. This paper presents a case study based on the die design for a surround molding part made of stainless steel. The forming and springback predictions, carried out using PAMSTAMP 2G, are reported and compared with the measurement data of the prototype. The predicted springback results were acceptable, so the processes of compensating die using Automatic Die Compensation Module of PAMSTAMP 2G were performed iteratively until the tolerances between the designed shape and the simulation data were satisfied.

Keywords

References

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