Hydroforming process of manufacturing for reverse spiral origami structure
by Chenghai Kong; Xilu Zhao; Ichiro Hagiwara
International Journal of Vehicle Performance (IJVP), Vol. 3, No. 4, 2017

Abstract: The reverse spiral is an effective and representative origami structure that is able to effectively absorb energy in crash tests. Because of the irregular cross-section of the structure, it is manufactured by hydroforming; however, the process is complicated and its parameters are difficult to verify, so the fracture and excessive thinning problems of hydroforming have not yet been satisfactorily solved. To address these issues, a model was designed and the response surface method was applied to optimise the hydroforming processing parameters. By optimisation of the processing parameters, the maximum thinning rate of the optimised structure was decreased from 36.9% to 12.9% and the fracture and excessive thinning problems of hydroforming of reverse spiral origami structures have been solved.

Online publication date: Mon, 02-Oct-2017

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