Optimisation of extrusion flat die design and die wall temperature distribution, using Kriging and response surface method

Nadhir Lebaal (1) , Fabrice Schmidt (1) , Stephan Puissant (2)

1 ICA - Institut Clément Ader
2 Centre de compétence packaging

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.

Mots clés: polymer extrusion; thermal regulation; response surface method; optimisation; Kriging interpolation; finite element analysis

Domaines: Sciences de l'ingénieur [physics]

Nadhir Lebaal, Fabrice Schmidt, Stephan Puissant. Optimisation of extrusion flat die design and die wall temperature distribution, using Kriging and response surface method. International Journal of Materials and Product Technology, 2010, 38 (2-3), pp.307-322. ⟨10.1504/IJMPT.2010.032107⟩. ⟨hal-01716277⟩