Abstract
Piston forging process is a vital step in the manufacturing of automobile engines. According to the practical piston product in automobile engines, the three-dimensional geometric model of the piston forging is established, and the forging scheme of the aluminum alloy billet and the mold is formulated. Based on the rigid-visco-plastic principle, the finite element numerical simulation for the scheme of piston forging is implemented. The required load of forging equipment and the wear of the mold are obtained by the given temperatures, friction coefficients and forging speeds in their respectively feasible ranges. To facilitate the parametric analysis, simulation data are fitted in curves, which can provide reference for the piston forging and the mold designing in practice.
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