Transition of failure mode in hot stamping of AA6082 tailor welded blanks

Liu, Jun; Wang, Ailing; Gao, Haoxiang; Gandra, J.; Beamish, Kathryn; Zhan, Lihua; Wang, Liliang

doi:10.1016/j.jmatprotec.2018.02.028

Cited by 22 publications

(6 citation statements)

References 50 publications

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“…(4). The temperature-dependent parameters, such as E, k, K, B, C and n, were determined by using Arrhenius equations, while other material constants were experimentally determined [23]. Therefore, the blank material, desired temperature and strain rate ranges were required to be provided in those two functional modules to acquire a particular material card.…”

Section: Flow Stress and Materials Card Of Aa6082mentioning

confidence: 99%

Cloud FEA of hot stamping processes using a software agnostic platform

Ming-qing

Lim

Cai

et al. 2021

Int J Adv Manuf Technol

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Finite element analysis (FEA) of a hot stamping process demands the implementation of accurate material properties and boundary conditions to precisely predict and evaluate the post-form quality of a component. A software agnostic platform was developed to provide cloud FEA of a hot stamping process in three stages, namely, pre-FE modelling, FE simulation and post-FE evaluation. When the desired materials and process window were uploaded on the platform, the flow stress, material properties, interfacial heat transfer coefficient (IHTC) and friction coefficient were predicted by the model-driven functional modules and then generated in the form of compatible packages that could be implemented into the desired FE software. Subsequently, the FE simulation was performed either locally or remotely on the developed platform. When the simulated evolutionary thermomechanical characteristics of the formed component were uploaded, the formability, quenching efficiency and post-form strength could be predicted and then demonstrated on a dedicated visualiser on the developed platform. Cloud FEA of two different hot stamping technologies was conducted to demonstrate the function of the developed platform, showing an error of less than 10%.

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Section: Flow Stress and Materials Card Of Aa6082mentioning

confidence: 99%

Cloud FEA of hot stamping processes using a software agnostic platform

Ming-qing

Lim

Cai

et al. 2021

Int J Adv Manuf Technol

Self Cite

View full text Add to dashboard Cite

show abstract

“…Rossini et al [21] researched the mechanical properties, microstructure and failure modes of TWBs with dissimilar materials utilizing metallography, microhardness, and tensile tests. Liu et al [22] investigated the deformation behavior and failure features of TWBs in hot forming.…”

Section: Introductionmentioning

confidence: 99%

Control of defects in the deep drawing of tailor-welded blanks for complex-shape automotive panel

Wang

Liu

Wang

et al. 2022

Int J Adv Manuf Technol

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With the development of lightweight vehicles, tailor welded blanks (TWBs) are increasingly used in the automotive industry. Splitting and wrinkling are the main defects during the deep drawing of TWBs. A new method to control the forming defects was introduced in the forming process of TWBs in this study. The microstructure and mechanical properties of TWBs were characterized through metallography and tensile tests. Finite element modelling of an automobile rear door inner panel made of TWBs was built to analyse deep drawing. Edge cutting and notch cut were introduced in the drawing to deal with forming defects and reduce the number of stamping tools. The minimum distance between the material draw-in and trimming lines, thinning index and thickening index were defined as the measurable index to analyse the numerical results. Orthogonal experiment, numerical simulation and multiobjective experiment were utilised to optimize the forming parameters. The proposed method and optimised parameters were verified through experiments. The experimental results are basically consistent with the numerical simulation. Results demonstrate that the proposed method can provide some guidance for controlling the defects in deep drawing of TWBs for complex shape automotive panel.

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“…For the GTAW process, Goldak double ellipsoidal source was implemented for getting an accurate result. It is observed that most of the studies discussed are repeatedly focused on Al and steel materials [10][11][12]. This makes a great deal to study the manufacturing of titanium and its alloy-based TWB as they are widely used in aerospace and defense applications [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical studies on gas tungsten arc welding of Ti–6Al–4V tailor-welded blank

Karpagaraj

Kumar

Thiyaneshwaran

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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The effect of gas tungsten arc welding (GTAW) process parameters and its impact on the titanium TWB was studied experimentally as well as using numerical simulation. Bead characteristics of BoP trials (bead on plate) were analyzed based on Taguchi L 27 orthogonal array by taking welding current (115 A, 125 A, 135 A), welding speed (4.1 mm/s, 5.8 mm/s, 7.5 mm/s) and arc length (3 mm, 4 mm, 5 mm) as process parameters. The bead width and depth of penetration for all trials were measured by using the weld expert system. Based on the bead characteristics, optimized GTAW process parameters (135 A, 4.1 mm/s and 3 mm) were identified for making the TWB by joining 2-1.6-mm-thick Ti-6Al-4V sheets. The tensile test of the prepared Ti-6Al-4V TWB was conducted in the universal testing machine. The COMSOL and ABAQUS software packages were used for the numerical simulation of TWB to assess the bead profile and tensile properties. The prediction made from the temperature distribution curve related to phase change near weld zone, exactly matched with the experimental work. The joint strength of TWB observed to be around 982 MPa and 1005 MPa was evaluated experimentally and conducting ABAQUS simulation work. The tensile test results were comparable with each other within the acceptable error level.

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Transition of failure mode in hot stamping of AA6082 tailor welded blanks

Cited by 22 publications

References 50 publications

Cloud FEA of hot stamping processes using a software agnostic platform

Cloud FEA of hot stamping processes using a software agnostic platform

Control of defects in the deep drawing of tailor-welded blanks for complex-shape automotive panel

Experimental and numerical studies on gas tungsten arc welding of Ti–6Al–4V tailor-welded blank

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