Optimization of forming processes with different sheet metal alloys

• Type: Article in International Conference Proceedings Book
• Date: 2007

Authors

Luisa C. Sousa (Author) FEUP; Catarina F. Castro (Author) FEUP; Carlos C. António (Author) FEUP

Conference proceedings International

Title: NUMIFORM 07 - Materials Processing and Design: Modeling, Simulation and Applications

Pages: 467-472

NUMIFORM 07- The 9th International Conference on Numerical Methods in Industrial Forming Processes

Porto, Portugal, 17-21 June 2007

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

INSPEC

Scientific classification

FOS: Engineering and technology

Other information

Authenticus ID: P-004-E32

DOI: 10.1063/1.2740855

Abstract (EN): Over the past decades relatively heavy components made of steel alloys comprise the majority of many manufactured parts due to steel's low cost, high formability and good strength. The desire to produce lightweight parts has led to studies searching for lighter and stronger materials such as aluminum alloys. However, they exhibit lower elastic stiffness than steel resulting in higher elastic strains causing known distortions such as spring-back and so decreasing accuracy of manufactured net-shape components. This paper presents a developed computational method to optimize the design of sheet metal processes using genetic algorithms. An inverse approach is considered so that the final geometry of the bended blank closely follows a prescribed one. The developed computational method couples a finite element forming simulation and an evolutionary algorithm searching the optimal design parameters of the process. The developed method searches the optimal parameters that ensure a perfect net-shape part Different aluminum alloys candidates for automotive structural applications are considered and the optimal solutions are analyzed.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6