Paper Title:

A Finite Element Analysis for the Initial Blank’s Shape Design of Sheet Metal in Deep Drawing Process

Periodical Key Engineering Materials (Volumes 364 - 366)
Main Theme Optics Design and Precision Manufacturing Technologies
Edited by Guo Fan JIN, Wing Bun LEE, Chi Fai CHEUNG and Suet TO
Pages 980-985
DOI 10.4028/www.scientific.net/KEM.364-366.980
Citation Tung Sheng Yang et al., 2007, Key Engineering Materials, 364-366, 980
Online since December, 2007
Authors Tung Sheng Yang, Yuan Chuan Hsu, Heng Sheng Lin, Sheng Yi Chang
Keywords Anisotropy, Cylindrical Cup Deep Drawing, Finite Element Analysis (FEA), Initial Blank's Shape
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Abstract

In the deep drawing of cups, the earing defect is caused primarily by planar anisotropy in the sheet. In order to obtain the optimal products in deep drawing process, blank shape is a very important formability factor. In this study, the finite element method was used to investigate the cup height and forming force of the cylindrical cup drawing process. A finite element analysis was also utilized to acquire the designed profile of the drawn products, a reverse forming method for obtaining the initial blank’s shape according to the forward cylindrical cup drawing simulation is proposed. The design of initial blank’s shape is also confirmed to obtain the designed profile of drawn cups. The influences of the blank’s shape on the height of product, the forming force, the effective stress and the effective strain were also examined.