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http://dx.doi.org/10.5228/KSPP.2005.14.1.021

Study on Design Parameters in a Stamping Process of an Automotive Member with the Simulation-based Approach  

Song J. H. (한국과학기술원 기계공학과)
Kim S. H. (대구대학교 자동차/산업/기계공학부)
Kim S. H. (삼성코닝 정밀유리팀)
Huh H. (한국과학기술원 기계공학과)
Publication Information
Transactions of Materials Processing / v.14, no.1, 2005 , pp. 21-28 More about this Journal
Abstract
This paper is concerned with the quantitative effect of design parameters on a stamped part of the auto-body. The considered parameters in this paper are the blank holding force, the draw-bead force, the blank size which greatly affect the metal flow during stamping. The indicators of formability selected in this paper are failures such as tearing, wrinkling and the amount of springback. The stamping process of the front side inner member is simulated using the finite element analysis changing the design parameters. The numerical results demonstrate that the blank holding force cannot control the local metal flow during forming although it controls the overall metal flow. The modification of the initial blank size considering the punch opening line ensures the local wrinkling and reduces the amount of springback after forming. The restraining force of draw-bead controls the metal flow in the local area and reduces the amount of excess metal. It is noted that the parametric study of design parameters such as blank holding force, the blank size and the draw-bead are very important in the process design of the complicated member.
Keywords
Stamping Process; Blank Holding Force; Draw-bead; Blank Size; Formability;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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