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Hydroforming

About: Hydroforming is a research topic. Over the lifetime, 2796 publications have been published within this topic receiving 26293 citations. The topic is also known as: Bulge forming.


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Journal ArticleDOI
TL;DR: In this article, the plastic deformation process on hydroforming of aluminum alloy tube with rectangular sections was carried out by means of experiment and numerical simulation using solid elements, and the stress and strain states of typical points were analyzed.

9 citations

Journal ArticleDOI
TL;DR: In this paper, the authors demonstrate the potential of load optimized tubes with a varying thickness distribution in circumferential direction produced by roll forming and investigate the secondary forming of TRS sheet metal to TRS tubes by means of FE-simulations and roll forming experiments.
Abstract: The main scope of the presented work is to demonstrate the potential of load optimized tubes with a varying thickness distribution in circumferential direction produced by roll forming. As initial material a so called Tailor Rolled Strip (TRS) sheet metal coil produced by Strip Profile Rolling (SPR) method was used instead of plain sheet. The TRS sheet metal is manufactured in a continuously working process by rolling one or more groves in transverse direction into the sheet metal coil. In this paper, the secondary forming of the TRS sheet metal to TRS tubes is investigated by means of FE-simulations and roll forming experiments. To simulate the manufacturing process of the TRS tube by FEM, an integrated consideration of the process is necessary because of the large local strain hardening in the groves of the initial SPR sheet metal. In experimental roll forming operations welded tubes could be manufactured successfully. The geometrical and material properties of these tubes are analyzed. The reprocessing of TRS tubes by hydroforming is investigated by means of tube bursting tests. It has been found that an additional annealing process is necessary to achieve deformations in the grooved area during the hydroforming process.

9 citations

Journal ArticleDOI
TL;DR: In this paper, the properties of the material used in sheet hydroforming were obtained to meet the reality based on the identification of parameters for constitutive models by inverse modelling in which the friction coefficients were also considered.

9 citations

Journal ArticleDOI
Kong Deshuai1, Lihui Lang1, Zhiying Sun1, Shangwen Ruan1, Shanshan Gu1 
TL;DR: In this article, a blank bulging method was proposed to solve the problems of non-uniform thickness distribution and cracking failure of aluminum thin-walled corrugated sheet during the conventional hydroforming process.
Abstract: The explosively forming projectile (EFP) has been traditionally adopted for the manufacturing of aluminum thin-walled corrugated sheet. These components have large deformation ranges but inferior formability. Additionally, the process usually delivers inferior surface quality with long manufacturing cycle time and high cost. The active hydroforming process is suggested to solve these issues during EFP. A new technology named as blank bulging by turning the upside down active hydroforming technology is proposed to overcome problems like nonuniform thickness distribution and cracking failure of corrugated sheet during the conventional hydroforming process. FEM simulations and experiments were conducted to validate this new technology. The effects of strain rate on the formability of aluminum alloy AA2024-O during the active hydroforming process were investigated according to the bulging test with pressure rate control. Results indicate that aluminum alloy AA2024-O is not sensitive to pressure rate (strain rate) at room temperature. Furthermore, the deformation capacity of aluminum alloys can be improved effectively, and more uniform distribution of wall thickness can be obtained by this new method. It can be concluded that the new method is universal for thin-walled, shallow drawing parts having complex sections.

9 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202330
202298
202158
202087
201981
201895