Researches regarding the hydroforming process of aluminum components

Păunoiu, Viorel; Teodor, Virgil; Susac, Florin

doi:10.1088/1757-899x/95/1/012016

Cited by 5 publications

(3 citation statements)

References 10 publications

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“…Exceeding this stroke will cause the blank to be deformed at a greater pressure than required, and there will be a risk of its damage. According to the new concept, the multi-channel hydroforming die consists of a punch (10) which moves, through the pre-set (9), washers (11) and (13) and gaskets (12), into the central pressure chamber (E), thus creating the pressure required to deform the material.…”

Section: Viorel Paunoiu Prof Phd Dunarea De Jos University Of Galmentioning

confidence: 99%

“…In order to eliminate or at least minimize these problems, various drawing processes with using elastic forming tools have been developed. One of these processes is the sheet hydroforming [12,15]. Different methods have been developed during the years: hydro-mechanical deep drawing [2,3,14], hydroforming with an elastic membrane [4][5][6], counter pressure drawing [7,8], hydraulic pressureaugmented drawing [9][10][11]13].…”

Section: Introductionmentioning

confidence: 99%

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Considerations Regarding Multi channel Sheet Hydroforming

Maier¹,

Baroiu²,

Păunoiu³

et al. 2017

Fifth International Conference on Advances in Civil, Structural and Mechanical Engineering - CSM 2017

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The paper introduces a new concept in sheet metal forming, which is multichannel sheet hydroforming technology. The new concept assures an improving of the flexibility of the hydroforming technology as well as an increasing of the productivity. This concept is based on the use of a high fluid pressure that is transmitted through a number of channels to the same number of deformation cells. The experimental and numerical results validate the new technology concept.

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Section: Viorel Paunoiu Prof Phd Dunarea De Jos University Of Galmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Considerations Regarding Multi channel Sheet Hydroforming

Maier¹,

Baroiu²,

Păunoiu³

et al. 2017

Fifth International Conference on Advances in Civil, Structural and Mechanical Engineering - CSM 2017

View full text Add to dashboard Cite

show abstract

“…Different methods of (SHF) have been developed during the years: hydro-mechanical deep drawing [3,4,14], hydroforming with elastic membrane [5][6][7]12], counter pressure drawing [8,9], hydraulic pressure-augmented drawing [10,11,13].…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study of the Sheet Hydroforming Process

Pereira¹,

Susac²,

Păunoiu³

et al. 2018

Sixth International Conference on Advances in Civil Structural and Mechanical Engineering CSM 2018

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Hydroforming of aluminum sheets is a plastic deformation process largely used in automotive industry. Among the different hydroforming processes, the Flexform is the one in which the punch is replaced by a fluid cell. This cell consists of a rubber membrane that is filled with a controlled pressure fluid that will deform the sheet in the tool. A rigid die is used for obtaining the shape of the workpiece. For obtaining a sound product a balance between the pressure fluid and the blank material and geometry must be assured. The paper presents experiments carried out for analyzing the influence of the die geometry, the blank thickness and the fluid pressure toward the product accuracy, in terms of thickness and shape variations. The results will be useful in process modeling and in estimation of hydro-deformability of aluminum sheets.

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