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Author(s): Catarina F. Castro
Luísa Costa Sousa
C. A. Conceição António
J. César de Sá
Title: An inverse technique on the optimization of rolling and drawing process parameters
Issue Date: 1998
Abstract: An optimal process design in steady-state metal plastic forming is proposed using an inverse problem solving technique and a finite element based approach. In particular, the method is applied to the problem of optimization of rolling and drawing process parameters. The goals of the two shape optimization problems are to specify the state variable distribution in the final product. A general formulation based on the minimization of a quadratic functional of nodal state variables is proposed. The rolling design variables are the roll radius, the reduction coefficient, the initial thickness, the rolling speed and the front and/or back tension. The drawing design parameters are the geometric die shape variables and the reduction coefficient. The optimization algorithm is based on the sequential unconstrained minimization technique and a gradient method. The sensitivities are obtained using a discrete formulation of the adjoint variable method.
Subject: Ciências Tecnológicas, Ciências da computação e da informação
Technological sciences, Computer and information sciences
Scientific areas: Ciências exactas e naturais::Ciências da computação e da informação
Natural sciences::Computer and information sciences
Source: Simulation of Materials Processing: Theory, Methods and Applications
Document Type: Artigo em Livro de Atas de Conferência Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Livro de Atas de Conferência Internacional

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