Determination of the bead geometry considering formability and stiffness effect using generalized forming limit concept (GFLC)

Wan Gi Cha, Sabrina Vogel, Nikola Bursac, Albert Albers, Wolfram Volk

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

Beads are used in deep drawn sheet metal parts for increasing the part stiffness. Thus, reductions of sheet metal thickness and consequently weight reduction can be reached. Style guides for types and positions of beads exist, which are often applied. However, higher stiffness effects can be realized using numeric optimization. The optimization algorithm considers the two-stepped manufacturing process consisting of deep drawing and bead stamping. The formability in both manufacturing steps represents a limiting factor. Considering nonlinear strain paths using generalized forming limit concept (GFLC), acceptable geometries will be determined in simulation. Among them, the efficient geometry which has higher stiffness effects will be selected in numerical and experimental tests. These will be integrated in the optimization algorithm.

Original languageEnglish
Article number032077
JournalJournal of Physics: Conference Series
Volume734
Issue number3
DOIs
StatePublished - 1 Sep 2016
Event10th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes, NUMISHEET 2016 - Bristol, United Kingdom
Duration: 4 Sep 20169 Sep 2016

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