Finite element simulation of oil pan forming process

摘要

The development of tooling for the deep drawing of oil pan is a time-consuming and expensive process. Finite element (FE) modeling of this process has the potential to reduce the time and cost of tooling development. A finite element model has been used to analyze the oil pan forming by the FE software, MARC. The underlying formulation is based on Lagrangian elastoplastic materials model. Normal anisotropic material behavior has been considered. The interaction of sliding surfaces is modeled with a Coulomb friction law. The tools arc modeled as rigid surfaces. The blank is modeled as a deformable body. Sensitive studies of the effects of the element types, friction coefficients, hardening models are conducted because these parameters have a great effect on the simulation results. The FE simulation results are validated by comparison with the experiment. The thinning distributions of the simulations agree well with those of the measurements, so that the theoretical simulations and results are useful for the prediction of real cases.