Authors: Gilmar Cordeiro da Silva, José Rubens Gonçalves Carneiro, André Bragança Carvalho França, Sara Aida Rodrígues Pulecio

Currently it presents as a challenge the analysis of finite elements and simulation of processes of conforming materials. Generally, the conformation requires several stages, and more efficient production sequence is obtained by empirical methods through experiments and adjustments. Computer modeling of each stage of the conforming process of the finite element method combined with the existence of a database can make the experimental design for manufacture faster and more efficient, reducing the use of methods such as of "trial and error." This study evaluated the variables in the backward extrusion process and annealed steel AISI 1010 experimentally using closed dies and hydraulic presses. The commercial package utilized in the simulation of axisymmetric extrusion was Deform 2D, using rigid matrices and elastoplastic material. It was possible to correlate, in a stage, the results of nanohardness with the analytical expression of Hollomon obtained in the tensile test. Using the numerical simulation it was also possible to reduce the number of stages of manufacture, manufacturing defects, and to provide the required load profile at each stage of deformation. The distribution of errors obtained in the simulation load through finite element analysis and experiments showed a mean of 11.76 and standard deviation of 4.83 due to the heterogeneous distribution of deformation.

Gilmar Cordeiro da Silva¹ | José Rubens Gonçalves Carneiro¹ | André Bragança
Carvalho França¹ | Sara Aida Rodrígues Pulecio²
1 Pontifícia Universidade Católica de Minas Gerais – Belo Horizonte – Minas Gerais – Brasil
2 Universidad Del Valle Colombia