Projeto do ferramental para o embutimento profundo em múltiplos estágios de um balde cônico

Abstract

Within deep drawing processes, the production of conical parts from sheet metal often involves a trial-and-error approach due to the process complexity. This approach results in rework and increased costs. To mitigate these challenges, one effective approach is to conduct preliminary simulations of the process using software capable of analyzing process non-linearities such as surface contact, plasticity, and large displacements. In this work, a simulation study was carried out, through FEM, of the manufacturing process of a conical component, the bucket for bottles, through deep drawing. The objective was to develop a new tooling design that minimized losses during manufacturing. The simulation was performed using information on the mechanical properties of the material (304 stainless steel) obtained through tensile tests. The results obtained for the plastic properties of the material showed agreement with the literature, with differences below 5%. Using Abaqus CAE software, the necessary steps for the manufacturing process were simulated and critical areas prone to rupture or wrinkling during the simulation were identified. Based on these results, it was determined that four deep drawing operations and two annealing steps were necessary to achieve the desired final component geometry. Subsequently, the forming tools required for the new production approach were modeled using this information. [resumo fornecido pelo autor]