Study of Al/St laminated sheet and constituent layers in radial pressure-assisted hydrodynamic deep drawing

Hashemi, Arash; Gollo, M. Hoseinpour; Seyedkashi, S. M. H.

doi:10.1080/10426914.2015.1127947

Cited by 22 publications

(16 citation statements)

References 14 publications

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“…Thinning amount is calculated in APDL simulation with measuring the distance between the upper and lower nodes of the sheet. If the measured distance exceeds maximum allowable thinning derived by equation (1), necking would occur [23].…”

Section: Ansys Parametric Design Language (Apdl)mentioning

confidence: 99%

Application of a new integrated optimization approach in sheet hydroforming process

Hashemi

Gollo

Seyedkashi

2018

Mechanics & Industry

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The purpose of this study is to produce a desired hydroformed product under the optimal pressure profile. To achieve this purpose, a new adaptive optimization approach is proposed based on fuzzy logic control (FLC) integrated with simulated annealing (SA) optimization technique and ANSYS parametric design language (APDL). An intermediate MATLAB code was developed and used to manage data transfer automatically between FLC, SA and APDL, in which there would be no need for any interaction of user/designer during the optimization process execution. This method aims to find the optimal pressure loading profile, prevent wrinkling and necking failures, reduce unsuccessful iterations, and enhance convergence precision. This method is capable of adaptively changing the process parameters in order to reach the optimized values with higher accuracy in a more reasonable time. The results show a good agreement between the proposed optimization approach and experiments. The developed optimization approach is a practical and reliable design tool for industrial production of any symmetric shell cups using hydroforming process.

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Section: Ansys Parametric Design Language (Apdl)mentioning

confidence: 99%

Application of a new integrated optimization approach in sheet hydroforming process

Hashemi

Gollo

Seyedkashi

2018

Mechanics & Industry

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“…An example of advanced application of these materials is the A380 airbus aircraft, where the fuselage is made entirely of MCL. Despite the widespread benefits of metal-composite laminates and their importance in advanced manufacturing, the production of these products still involves many challenges [2]. In addition to the difficulties in the production of composite panels, the production of laminates is also a challenging and complicated process due to the presence of metal and composite together and their different mechanical and thermal properties.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on forming of nanoclay-reinforced metal–composite laminates using deep drawing process

Boroumad

Seyedkashi

Pol

2020

J Braz. Soc. Mech. Sci. Eng.

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Forming of metal-nanocomposite laminates, including nanoclay-reinforced polypropylene and glass fiber as the core layer, and aluminum 1050-O as the skin layer, is studied. The effect of different weight percentages of nanoclay particles in the matrix, including 0, 1, 3, 5 and 7 wt%, is investigated on the drawing depth and drawing force during the deep drawing process. The results show that by the addition of nanoclay particles, the drawing force and depth increase at first and then decrease. The highest drawing force is obtained in 3 wt% nanoclay and the highest drawing depth in 1 wt%. Besides, the lowest drawing force and depth were obtained in 7 wt% nanoclay. Comparison of the strains on the outer layers shows that the highest strain values could be observed in 1 wt%. Strains decrease due to the increase in nanoclay particles, so that the strain in 5 and 7 wt% is even less than the pure sample.

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“…investigated the radial pressure assisted hydrodynamic deep drawing of single and bilayer cups by using FE and experimental methods. The authors analyzed the effects of layers arrangement on forming behavior of laminated sheets in different pressure loading paths and showed that the aluminum/steel composite has a wider forming pressure range, higher drawing ratio and lower geometrical limitations in comparison with the single-layer aluminum in identical conditions [18].…”

Section: Introductionmentioning

confidence: 99%

Drawing potential of fiber metal laminates in hydromechanical forming: A numerical and experimental study

Saadatfard

Gerdooei

Aghchai

2018

Jnl of Sandwich Structures & Materials

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It is known that fiber metal laminates as one of hybrid materials with thin metal sheets and fiber/resin layers have limited formability in conventional forming methods. This paper presents an experimental and numerical study for drawability of glass fiber-reinforced aluminum laminates under hydromechanical drawing technique. Fiber metal laminates comprised of a layer of woven glass fiber-reinforced prepreg, sandwiched between two layers of aluminum alloy. In order to produce fiber metal laminates, the laminates were subjected to a sufficient squeezing pressure under a controlled heating time and temperature by using a hydraulic hot press. A hydromechanical tooling equipped with blank-holder force and fluid pressure control system was used to form the initial circular fiber metal laminate blank. Finally, the effect of parameters such as pre-bulging pressure, final chamber pressure, and drawing ratio on process variables was evaluated. Also, the characteristic curve of hydromechanical drawing of fiber metal laminate i.e. chamber pressure in terms of drawing ratio was achieved by means of experimental tests and numerical simulations. The results showed that the maximum drawing ratio of defect-free fiber metal laminates, namely without any tearing, wrinkling, and delamination was obtained at pre-bulging and chamber pressure of 35 and 80 bar, respectively.

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Study of Al/St laminated sheet and constituent layers in radial pressure-assisted hydrodynamic deep drawing

Cited by 22 publications

References 14 publications

Application of a new integrated optimization approach in sheet hydroforming process

Application of a new integrated optimization approach in sheet hydroforming process

Experimental study on forming of nanoclay-reinforced metal–composite laminates using deep drawing process

Drawing potential of fiber metal laminates in hydromechanical forming: A numerical and experimental study

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