Optimisation of extrusion flat die design and die wall temperature distribution, using Kriging and response surface method Online publication date: Wed, 10-Mar-2010
by Nadhir Lebaal, Fabrice Schmidt, Stephan Puissant
International Journal of Materials and Product Technology (IJMPT), Vol. 38, No. 2/3, 2010
Abstract: A new optimisation methodology for the design of coat-hanger dies is presented. Two approaches are presented to optimise the velocities distribution across the die exit. In the first approach, we predict the optimal shape of a coat hanger die; in the second approach, to keep the same geometry and avoid design of a new die, we optimise the temperature of regulation in heterogeneous way. This method involves coupling a three-dimensional finite element simulation software and an optimisation strategy. For this optimisation, the Sequential Quadratic Programming algorithm and the global response surface method with Kriging interpolation are used.
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