Title: ISF process model development

Authors: Meelis Pohlak, Juri Majak, Rein Kuttner

Addresses: Department of Mechanics, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia. ' Department of Mechanics, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia. ' Department of Mechanics, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia

Abstract: Incremental Sheet Forming (ISF) process modelling is studied. Main attention is paid to safe manufacturing. Experimental, numerical and theoretical study is performed in order to determine the material formability and the forming load components. ISF strategies for determining the Forming Limit Diagram (FLD) are pointed out. The obtained experimental results have been found to be in good agreement with theoretical considerations. The effect of plastic anisotropy of metal sheets is considered in theoretical models and test design. The obtained results allow to predict tool and material failure in ISF process. [Received 5 June 2007; Accepted 5 July 2007]

Keywords: finite element analysis; FEA; incremental sheet forming; plastic anisotropy; process modelling; forming limit diagram; FLD; tool failure; materials failure; failure prediction.

DOI: 10.1504/IJCMSSE.2007.017251

International Journal of Computational Materials Science and Surface Engineering, 2007 Vol.1 No.5, pp.571 - 584

Published online: 21 Feb 2008 *

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