Finite element simulation of the deep-drawing process of a two-piece tinplate can
Renato Silva Horta1; Luciano Pessanha Moreira1; Hesron Willian de Oliveira2; Thais Macedo Werbet Ouverney1; Aline de Souza Silva1; Alexandre Santos Francisco1
1 Universidade Federal Fluminense; 2 Companhia Siderúrgica Nacional
doi:10.20906/CPS/CILAMCE2017-0341
Resumo
The present study proposed a numerical investigation of the wall thinning effect during the deep drawing process of a two-piece can packaging for possible mass reduction. The investigated parameters were the friction coefficient between the tooling and the blank, the initial thickness and the plastic anisotropy of the blank. The mechanical properties of the 0.19 mm thick chromium coated SAE 1008 T3 steel sheets were determined by uniaxial tensile tests. Hooke's linear isotropic elasticity was assumed, together with the hypothesis of an isotropic hardening of the metallic sheet in the context of plastic flow theory. The anisotropic yield criterion was implemented in a subroutine in ABAQUS/Explicit. An unreplicated two-level 24 factorial design was performed. It was found that the initial blank thickness had the higher impact in the wall thinning, followed by the plastic anisotropy coefficients, with both being inversely proportional to the thinning effect. The friction coefficients showed the least influence.
Palavras-chave: Finite element method; Factorial design; Sheet-metal forming; Metallic packaging