Investigation on the effect of blank holder gap in the hydroforming of cylindrical cups, made of fiber metal laminate

Blala, Hamza; Lang, Lihui; Li, Lei; Sherkatghanad, Ehsan; Alexandrov, Sergei

doi:10.1007/s00170-020-05467-8

Cited by 15 publications

(10 citation statements)

References 27 publications

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“…Here when we increased the pressure stepwise in three different steps from 2 to 8 MPa then maximum depth 29.00 mm as well as good quality of the part obtained. Actually whatever the blank holder gap, blank holder force, or cavity pressure was used, forming depth will be more than 13mm [30]. Hence after this depth forming becomes more critical and to be investigated thoroughly, for this reason, punch stroke was divided into three strokes in which second and third punch strokes start after 13mm and 21mm respectively.…”

Section: Effect Of Vcp On Forming Limit Depthmentioning

confidence: 99%

Numerical and experimental investigations on the effects of variable cavity pressure on the formability of GLARE using hydromechanical deep drawing

Tabasum

Lang

Mirza

et al. 2022

Int J Adv Manuf Technol

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Excellent physical and mechanical properties of fiber metal laminates (FMLs) have made them a very popular and most suitable material to make high strength and lightweight products in different industries for example automobile, military, and aerospace. Glass fiber aluminum reinforced epoxy (GLARE) is one of the most used fiber metal laminate among the family of fiber metal laminates, but there are some challenges in its formability. Our study mainly focuses on the formability of the GLARE cup parts by using hydromechanical deep drawing. Forming depth with good quality (without any wrinkling, delamination, or fracture), failure mode analysis and wall thinning rate (%) distribution of the parts are the main criteria in the formability. The influence of variable cavity pressure (VCP) with respect to punch strokes had been investigated by using numerical simulations and experiments. Results showed that the variable cavity pressure in case of increasing or decreasing the cavity pressure had very much effect on the formability. Stepwise increasing the VCP with respect to punch strokes resulted in a maximum forming depth of 29.00mm as well as good quality whereas in the case of stepwise decreasing the variable cavity pressure, results were not encouraging.Commercially available code ABAQUS explicit was used for finite element analysis simulation which had shown close agreement with the experimental results.

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Section: Effect Of Vcp On Forming Limit Depthmentioning

confidence: 99%

Numerical and experimental investigations on the effects of variable cavity pressure on the formability of GLARE using hydromechanical deep drawing

Tabasum

Lang

Mirza

et al. 2022

Int J Adv Manuf Technol

Self Cite

View full text Add to dashboard Cite

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“…Recently, these forming methods were utilised to form steel-based FMLs, but the latest research papers have been focused mainly on aluminium-based composites. Researchers consider the configuration of the material layers [374][375][376][377] or the process parameter setup [86,[378][379][380][381][382][383][384][385][386] to reduce material defects and go beyond the current forming limits caused mainly by breakage and wrinkling. In order to improve the formability of the layers of FRP, many studies are focused on die forming at elevated temperatures [387][388][389].…”

Section: Die Formingmentioning

confidence: 99%

“…Numerical and experimental investigations of the effect of the blank holder gap on the hydromechanical deep drawing of FMLs made with 2024-T3 aluminium alloy sheet and W-9011 prepreg woven glass fibre sheets were conducted by Blala et al [384]. Due to applying the BHF and cavity pressure in the laminate system, the resin plays the role of rubber, which decreases the thickness of the FMLs (Figure 38).…”

Section: Hydroformingmentioning

confidence: 99%

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New Advances and Future Possibilities in Forming Technology of Hybrid Metal–Polymer Composites Used in Aerospace Applications

et al. 2021

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Fibre metal laminates, hybrid composite materials built up from interlaced layers of thin metals and fibre reinforced adhesives, are future-proof materials used in the production of passenger aircraft, yachts, sailplanes, racing cars, and sports equipment. The most commercially available fibre–metal laminates are carbon reinforced aluminium laminates, aramid reinforced aluminium laminates, and glass reinforced aluminium laminates. This review emphasises the developing technologies for forming hybrid metal–polymer composites (HMPC). New advances and future possibilities in the forming technology for this group of materials is discussed. A brief classification of the currently available types of FMLs and details of their methods of fabrication are also presented. Particular emphasis was placed on the methods of shaping FMLs using plastic working techniques, i.e., incremental sheet forming, shot peening forming, press brake bending, electro-magnetic forming, hydroforming, and stamping. Current progress and the future directions of research on HMPCs are summarised and presented.

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“…In another research study, Gisario et al [11] proposed a prediction model based on neural network models for laser forming of FMLs to estimate temperature and bending angle. Blala et al [12] investigated the effect of blank holder gap (BHG) in the hydroforming process of FMLs. They concluded that the BHG smaller than the initial thickness of FML can improve the quality and depth of forming of FML hydroformed specimens.…”

Section: Introductionmentioning

confidence: 99%

Creep Age Forming of Fiber Metal Laminates: Effects of Process Time and Temperature and Stacking Sequence of Core Material

et al. 2021

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Fiber metal laminates (FMLs) are a type of hybrid materials interlacing composites and metals. In the present work, FMLs with aluminum alloy 6061 as the skin and E-glass fiber-reinforced polypropylene (PP) as the core material are fabricated and formed by the creep age forming (CAF) process. The effects of time and temperature as the process parameters and thickness and stacking sequences of composites layers as the FML parameters are evaluated on the springback of glass-reinforced aluminum laminates (GLARE) FMLs. After the CAF process, the springback of creep age-formed FMLs is calculated. The results show that the FMLs can be successfully formed with the CAF process by considering appropriate time and temperature. In addition, the stacking sequence of composite layers can affect the springback behavior of FMLs significantly.

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Investigation on the effect of blank holder gap in the hydroforming of cylindrical cups, made of fiber metal laminate

Cited by 15 publications

References 27 publications

Numerical and experimental investigations on the effects of variable cavity pressure on the formability of GLARE using hydromechanical deep drawing

Numerical and experimental investigations on the effects of variable cavity pressure on the formability of GLARE using hydromechanical deep drawing

New Advances and Future Possibilities in Forming Technology of Hybrid Metal–Polymer Composites Used in Aerospace Applications

Creep Age Forming of Fiber Metal Laminates: Effects of Process Time and Temperature and Stacking Sequence of Core Material

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