Simulação do processo de estampagem profunda de corpos cilindricos atraves do metodo dos elementos finitos

AUTOR(ES)

Roberto Bortolussi

DATA DE PUBLICAÇÃO

1996

RESUMO

Deep drawing process change the geometry of a metal sheets to complex shapes. The complexity of the geometry and many variables involved make the tool design very difficult. The recent necessity of quicker developments in the manufacturing methods make necessary to review this tool design and to simulation methods have become very important. It was used the Finite Elements Methods with elasto-plastic formulation which is found in the ANSYS 5.0 - A software, for the simulation of cylindrical deep drawing. It was used axisymmetric models. It was verified two different blank diameter were tested to check the variation of strain and force when deep drawing ratio was increased. The influence of the friction coefficient with a diameter of blank has been evaluate. Nodal displacements obtained were used to draw the deformed blank with AUTOCAD R12 and then the thickness variation with radial position was calculated. The simulated results were compared to the experimental results, showing that the methodis reliable

ASSUNTO(S)

simulação (computadores) estampagem (trabalhos em metal) metodo dos elementos finitos

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