Optimization of loading path in hydroforming of parallel double branched tube through response surface methodology

Chen, Mingtao; Xiao, Xiaoting; Tong, Jianghuai; Guo, Hao; Wen, Jinyu

doi:10.1016/j.advengsoft.2017.11.003

Cited by 19 publications

(3 citation statements)

References 23 publications

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“…Tube hydroforming is a forming technolgy which uses liquid to make metal ubes into hollow variable cross section parts. It has been widely used in many fields such as automobile and aerospace, with the advantages of no welding, high matrerial utilization and light weight [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Forming analysis and process design of hydroforming with axial-circumferential feeding of heavy truck axle housing

Zhang,

Wang,

Wang

et al. 2024

Preprint

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In the bulging-pressing forming process of heavy truck axle housing, the technology of hydroforming with axial-circumferential feeding solves the problems of large wall thickness thinning rate in the middle part and cracking on the rear cover. However, there exsits some defects of depressions and squeezed marks on the upper side of the preformed tube in practical application, and the reasons are not clear. In this paper, the causes of the defects in the hydroforming were revealed through analyzing the forming quality of the tube blank. According to that, the design methods of the D-shaped cross section preformed tube and the non-equal width control die were given.The influences of height coefficient, beam coefficient and width coefficient of upper control die on forming quality of preformed tube blank were revealed by finite element simulations, and then the reasonable ranges of the three coefficients were determined. The D-shaped cross section preformed tube was successfully prepared by the preparation experiment of heavy truck axle housing tube, whose hidden dangers of depressions and squeezed marks were eliminated, and the simulation results were consistent with the experimental results. The pressing-forming experiment was carried out, and all dimensions meet the design requirements of the axle housing tube.

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Section: Introductionmentioning

confidence: 99%

Forming analysis and process design of hydroforming with axial-circumferential feeding of heavy truck axle housing

Zhang,

Wang,

Wang

et al. 2024

Preprint

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show abstract

“…Reza et al [15] investigated influence of the die geometry and fluid pressure on TR and forming force during the hydroforming of AA7075-O sheet by RSM and FEM. In order to obtain the optimized loading path, Chen et al [16] investigated the hydroforming of double-branched tube through RSM along with FEM. Therefore, the T-shaped tube hydroforming process using traditional tube and variable thickness tube was compared in this work.…”

Section: Introductionmentioning

confidence: 99%

Dimensional optimization of variable thickness tube in T-shaped tube hydroforming using response surface methodology

Chen

Xiao

Tong

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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In this work, a variable thickness tube blank geometry is proposed to be used in T-shaped tube hydroforming. The dimensions of the tube blank are optimized by the response surface method (RSM) linked with finite element simulation during T-shaped tube hydroforming. The influence of the wall thickness, angle and length of the tube blank are discussed on the thinning ratio and branch height. Multi-objective functions that relate objectives and design variables are formulated. Furthermore, the design variables having greatest impact on the objectives are obtained by sensitivity analysis. The optimal the geometric dimensions are determined within the given criterion by RSW and desirability approach. The optimized results have good agreement with the obtained results by finite element simulation and experiment.

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“…The loading path (variation of internal pressure with time) is an important parameter in hydroforming. Chen et al [3] used finite element analysis and the design of experiments (DOE) method (response surface method) to find the proper loading path. Utilizing a regression model, the improved loading path was found for fabricating a parallel double branched tube.…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Study of the Hydroforming Process of Metallic Bellows: Investigation and Multi-objective Optimization of the Process Parameters

Safari

Joudaki

Ghadiri

2019

IJE

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In this paper, for the first time, a comprehensive experimental study is performed on hydroforming process of metallic bellows. For this purpose, the effects of the main process parameters and their interactions on the characteristics of hydroformed metallic bellows are investigated using Response Surface Methodology (RSM). The selected parameters as input variables are internal pressure, die stroke and die fillet. The measured characteristics of metallic bellows are convolution height and thickness of the top point of bellows congress. A set of experiments are carried out and the convolution height and thickness of the top point of bellows congress are measured. Then a mathematical model is developed according to the second-order linear regression equations to maximize the convolution height and thickness of the top point of bellows congress. The results show that the increase in the convolution height and decrease in the thickness of the top point of bellows congress will occur by increasing the internal pressure and die stroke. Also, the convolution height and thickness of the top point of bellows congress are increased with an increase in the die fillet.

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Optimization of loading path in hydroforming of parallel double branched tube through response surface methodology

Cited by 19 publications

References 23 publications

Forming analysis and process design of hydroforming with axial-circumferential feeding of heavy truck axle housing

Forming analysis and process design of hydroforming with axial-circumferential feeding of heavy truck axle housing

Dimensional optimization of variable thickness tube in T-shaped tube hydroforming using response surface methodology

A Comprehensive Study of the Hydroforming Process of Metallic Bellows: Investigation and Multi-objective Optimization of the Process Parameters

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