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Evaluation Of Surface Deflection In Automotive Outer Panels

Park, Dong Hwan, Kim, Tae Hyo, Kim, Sung Ho, & Yarlagadda, Prasad K. (2006) Evaluation Of Surface Deflection In Automotive Outer Panels. In 2006 Advanced Metal Processing Technologies, July 2006, Las Vegas, USA. (Unpublished)

Abstract

Upon unloading in a forming process there is elastic recovery, which is the release of the elastic strains and the redistribution of the residual stresses through the thickness direction. It causes changes in shape and dimensions that can create major problem in the external appearance of outer panels. Thus surface deflection prediction is an important issue in sheet metal forming industry. The shape and dimension problem in press forming is defined as a trouble mainly caused by the elastic recovery of materials after forming. The use of high strength steel sheets in the manufacturing of automobile outer panels has increased in the automotive industry over the years because of its lightweight and fuel-efficient improvement. But one of the major concerns of stamping is surface deflection in the formed outer panels. Hence, to be cost effective, accurate prediction must be made of its formability. The automotive industry places rigid constraints on final shape and dimensional tolerances as well as external appearance quality of outer panels. Keywords: Surface deflection, automotive outer

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ID Code: 6120
Item Type: Conference Paper
Keywords: Surface deflection, automotive outer panels, press forming, residual stress, sheet metal forming industry, finite element method
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MANUFACTURING ENGINEERING (091000) > Manufacturing Engineering not elsewhere classified (091099)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2006 (please consult author)
Deposited On: 14 Feb 2007
Last Modified: 11 Aug 2011 02:44

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