A metamodel based optimisation algorithm for metal forming processes

Bonte, M.H.A. and Boogaard van den, A.H. and Huetink, J. (2007) A metamodel based optimisation algorithm for metal forming processes. In: Advanced Methods in Material Forming. Springer, pp. 55-72. ISBN 9783540698449

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Abstract:	Cost saving and product improvement have always been important goals in the metal forming industry. To achieve these goals, metal forming processes need to be optimised. During the last decades, simulation software based on the Finite Element Method (FEM) has significantly contributed to designing feasible processes more easily. More recently, the possibility of coupling FEM to mathematical optimisation algorithms is offering a very promising opportunity to design optimal metal forming processes instead of only feasible ones. However, which optimisation algorithm to use is still not clear. In this paper, an optimisation algorithm based on metamodelling techniques is proposed for optimising metal forming processes. The algorithm incorporates nonlinear FEM simulations which can be very time consuming to execute. As an illustration of its capabilities, the proposed algorithm is applied to optimise the internal pressure and axial feeding load paths of a hydroforming process. The product formed by the optimised process outperforms products produced by other, arbitrarily selected load paths. These results indicate the high potential of the proposed algorithm for optimising metal forming processes using time consuming FEM simulations.
Item Type:	Book Section
Copyright:	Springer
Faculty:	Engineering Technology (CTW)
Research Chair:	Mechanics of Forming Technology (MFT)
Research Group:	Applied Mechanics (AM)
Link to this item:	http://purl.utwente.nl/publications/59697
Official URL:	http://dx.doi.org/10.1007/3-540-69845-0_4
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