Optimization of tailor rolled blanks under consideration of function, formability and cost

• Published in: Thin-walled structures 2021-04, Vol.161, p.107437, Article 107437
• Main Authors: Klinke, N., Schumacher, A.
• Format: Article
• Language: English
• Subjects: Cost estimation; Formability estimation; Multidisciplinary optimization; Tailor rolled blank parts
• ISSN: 0263-8231; 1879-3223
• DOI: 10.1016/j.tws.2021.107437

In this paper we present a new scheme for the automatic optimization of tailor rolled blanks. This is important because this production technique is utilized for light weighting of vehicle bodies that are designed for mass production with respect to cost restrictions. The optimization scheme includes the necessary CAE process, which consists of the manufacturing simulation (e.g. for the stamping process), the simulation of the structural behavior (e.g. for a crash event) and the estimation of the production costs. The defined design variables describe the shape and dimensions in the multiobjective optimization scheme. The optimization is based on high-quality metamodels with which different optima can be evaluate. •Multiobjective Optimization minimizing mass and cost of tailor rolled vehicle structures.•Support the decision process for light weighting technology alternatives.•Novell CAE process chain, that respects the manufacturing specifics of tailor rolled parts.•Evaluation of different optima based on high-quality metamodels.•Overcome time-consuming evaluation of function, formability and cost by different experts.