Investigations on deformation mechanism of double-sided incremental sheet forming with synchronous thermomechanical steel-aluminum alloy bonding

Wu, Renhao; Liu, Xinmei; Li, Meng; Chen, Jun

doi:10.1016/j.jmatprotec.2021.117147

Cited by 16 publications

(5 citation statements)

References 37 publications

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“…The interfacial pressure P and equivalent strain illustrated in Fig. 4 can also be calculated by the combination of forming parameters as stated in our previous work [24]. Therefore, by submitting specific forming parameters into Eq.…”

Section: Criterion For Predicting Bonding Quality Under Thermomechanical Effectmentioning

confidence: 99%

“…4, the normal stress components σ t , σ  , and σ  are main driven sources of the element along the thickness, tangential and circumferential directions, respectively. Details on the deformation mechanisms can be referred to our previous work [24]. As materials undergo incremental plastic deformation and fast interfacial diffusion, the complex material behaviors are macroscopically characterized as sheet thinning and bonding.…”

Section: Dissimilar Sheets Deformation In Current Loading Areamentioning

confidence: 99%

“…Corresponding to the interfacial materials bonding response in elevated temperature condition, interfacial pressure P and yield stress σ O S of AA5052 are treated as dependent on current working temperature [24].   0.9 25 σ 607 178 [1 ] 7…”

Section: Criterion For Predicting Bonding Quality Under Thermomechanical Effectmentioning

confidence: 99%

See 2 more Smart Citations

Interfacial quality prediction model for Al/steel sheets during friction stir–assisted double-sided incremental forming with synchronous bonding

Liu

et al. 2021

Int J Adv Manuf Technol

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Section: Criterion For Predicting Bonding Quality Under Thermomechanical Effectmentioning

confidence: 99%

Section: Dissimilar Sheets Deformation In Current Loading Areamentioning

confidence: 99%

See 1 more Smart Citation

Interfacial quality prediction model for Al/steel sheets during friction stir–assisted double-sided incremental forming with synchronous bonding

Liu

et al. 2021

Int J Adv Manuf Technol

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“…Better formability and a lower bumping height on the stack centre were obtained for the steel top/aluminium bottom sequence with a climbing direction of forming (the direction of the feed rate was the same as the tool rotation at the contact zone) [245]. The process has been extended to the double-sided incremental forming variant [246]; the authors carried out a model predicting the bonding quality and they also reduced profile deviation by 3.8 mm compared to single point forming [247]. Riaz et al [29] focused on comparing two temper conditions of AA2219 O (fully annealed) and T6 (solution heat treated and artificially aged).…”

Section: Friction-assisted Isfmentioning

confidence: 99%

Recent Developments and Future Challenges in Incremental Sheet Forming of Aluminium and Aluminium Alloy Sheets

Trzepieciński

Najm

Oleksik

et al. 2022

Metals

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Due to a favourable strength-to-density ratio, aluminium and its alloys are increasingly used in the automotive, aviation and space industries for the fabrication of skins and other structural elements. This article explores the opportunities for and limitations of using Single- and Two Point Incremental Sheet Forming techniques to form sheets from aluminium and its alloys. Incremental Sheet Forming (ISF) methods are designed to increase the efficiency of processing in low- and medium-batch production because (i) it does not require the production of a matrix and (ii) the forming time is much higher than in conventional methods of sheet metal forming. The tool in the form of a rotating mandrel gradually sinks into the sheet, thus leading to an increase in the degree of deformation of the material. This article provides an overview of the published results of research on the influence of the parameters of the ISF process (feed rate, tool rotational speed, step size), tool path strategy, friction conditions and process temperature on the formability and surface quality of the workpieces. This study summarises the latest development trends in experimental research on, and computer simulation using, the finite element method of ISF processes conducted in cold forming conditions and at elevated temperature. Possible directions for further research are also identified.

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Section: Criterion For Predicting Bonding Quality Under Thermomechanical Effectmentioning

confidence: 99%

Interfacial Quality Prediction Model for Al/Steel Sheets During Friction Stir Assisted Double-Sided Incremental Forming with Synchronous Bonding

Liu

et al. 2021

Preprint

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The widely investigated Al/steel laminated structures are challenged with subsequent plastic deformation due to the existence of interfacial brittle intermetallic compound layer. To overcome this drawback, a newly proposed thermomechanical forming technology as friction stir assisted double-sided incremental plastic forming with synchronous solid-state interfacial bonding is utilized to fabricate laminated structures, which can meet requirement of plastic deformation of laminates. Typical interfacial bonding performances produced by a series of experiments classified as sound bonding, de-bonding, over-thinning, penetration and crack are assessed. Local working peak temperature and maximum forming force in loading area are recorded and evaluated during stable bonding-forming stage. Considering heat-force coupling effect, a pressure-strain-temperature based prediction model is modified to assess process quality, which is conformed to experimental results. This work can help obtain proper process window to fabricate Al/steel laminated parts and shall also inspire to build guidance of related thermomechanical joining-with-forming processes to achieve high interfacial performance.

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Investigations on deformation mechanism of double-sided incremental sheet forming with synchronous thermomechanical steel-aluminum alloy bonding

Cited by 16 publications

References 37 publications

Interfacial quality prediction model for Al/steel sheets during friction stir–assisted double-sided incremental forming with synchronous bonding

Interfacial quality prediction model for Al/steel sheets during friction stir–assisted double-sided incremental forming with synchronous bonding

Recent Developments and Future Challenges in Incremental Sheet Forming of Aluminium and Aluminium Alloy Sheets

Interfacial Quality Prediction Model for Al/Steel Sheets During Friction Stir Assisted Double-Sided Incremental Forming with Synchronous Bonding

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