Electrically-assisted mechanical clinching of AA6061-T6 aluminum to galvanized DP590 steel: effect of geometrical features on material flow and mechanical strength

Barimani-Varandi, Abozar; Aghchai, Abdolhossein Jalali

doi:10.1051/meca/2020072

Cited by 13 publications

(3 citation statements)

References 39 publications

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“…The use of galvanized coating steel could effectively reduce the corrosion of steel-aluminium joints, improving the performance of the joints [21]. Barimani-Varandi et al [22,23] applied electrically assisted mechanical clinching to join AA6061-T6 and galvanized DP590 steel. Electrically assisted preheating was used to improve the connection of low plasticity aluminium alloy to high-strength steel.…”

Section: Introductionmentioning

confidence: 99%

Research on the mechanical clinching process for the metal–polymer multilayer structure

Ouyang

Chen

2023

Materials Science and Technology

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With the wide application of lightweight materials, the metal–polymer multilayer structure has become a research focus owing to the advantages of lower weight and higher vibration damping. In the current work, the mechanical clinching process of the metal–polymer multilayer structure between Al5052-H32 and polyoxymethylene was investigated. The effect of diverse plate configurations and different test specimen forms on the mechanical characteristics was analysed in terms of geometric parameters, static strength, failure modes and energy absorption. The results showed that the metal–polymer multilayer structure could be successfully connected utilizing the mechanical clinching process. The cross-tension load and lap-shear load of the joint were greatly affected by the plate configuration as well as the test specimen form.

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Section: Introductionmentioning

confidence: 99%

Research on the mechanical clinching process for the metal–polymer multilayer structure

Ouyang

Chen

2023

Materials Science and Technology

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“…As an important means of energy conservation and emission reduction, automobile lightweight has received more and more attention, the application of lightweight materials (such as high-strength steel, aluminum alloy, magnesium alloy, etc.) promotes the development of automobile lightweight [1][2][3]. At the same time, due to the large differences in physical properties of heterogeneous materials, the traditional resistance spot welding technology is difficult to achieve reliable joining, which brings new challenges to the joining technology of multi-material hybrid body [4,5].…”

Section: Introductionmentioning

confidence: 99%

Simulation of dieless clinching process considering the limit of blank holder

Wang

Han²,

Li³

et al. 2023

Mechanics & Industry

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The low strength and large protrusion of the traditional dieless clinched joint hindered its application. To improve the mechanical properties of the dieless clinched joint, a novel dieless clinching process considering the limitation of the blank holder was proposed. The finite element model of the dieless clinching process was established by DEFORM-2D, the influences of the blank holder spring stiffness, the blank holder limit height, and the punch diameter on the mechanical interlock of the joint were analyzed, and the influence laws of blank holder spring stiffness and blank holder limit height on material flow and mechanical interlock were obtained. Then, the influence of these three die parameters and their interaction on the joint interlock were analyzed using the response surface method. The results show that the blank holder displacement plays a key role in the formation of mechanical interlock in the dieless clinching process. Reasonable limit height and spring stiffness of the blank holder can control the flow direction of materials, so as to improve the mechanical interlock and the strength of dieless clinched joints. It provides a new idea for improving the dieless clinching process.

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“…Many merits were reported for MC relative to other joining methods including excellent fatigue property, low energy consumption, no additional fasteners, no pre-working or reworking required, and the minimum maintenance costs. [3][4][5][6][7] However, relatively low joint strength is restricted the usability of the MC process. Peng et al 8 reviewed the latest advances of technologies on the development of clinching tools and processes to expand the application range of clinching technologies.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of the tensile shear strength for joining low-ductility aluminium to high-strength steel by using electrically-assisted mechanical clinching (EAMC)

Barimani-Varandi

Aghchai

2021

Proceedings of the Institution of Mechanical Engineers, Part B:

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The present work studied the enhancement of the tensile shear strength for joining AA6061-T6 aluminium to galvanized DP590 steel via electrically-assisted mechanical clinching (EAMC) using an integrated 2D FE model. To defeat the difficulties of joining low-ductility aluminium alloy to high-strength steel, the electroplastic effect obtained from the electrically-assisted process was applied to enhance the clinch-ability. For this purpose, the results of experiments performed by the chamfering punches with and without electrically-assisted pre-heating were compared. Joint cross-section, failure load, failure mode, fracture displacement, material flow, and failure mechanism were assessed in order to study the failure behaviour. The results showed that the joints clinched at the EAMC condition failed with the dominant dimpled mechanism observed on the fracture surface of AA6061 side, achieved from the athermal effect of the electroplasticity. Besides, these joints were strengthened 32% with a much more fracture displacement around 20% compared with non-electrically-assisted pre-heating.

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Electrically-assisted mechanical clinching of AA6061-T6 aluminum to galvanized DP590 steel: effect of geometrical features on material flow and mechanical strength

Cited by 13 publications

References 39 publications

Research on the mechanical clinching process for the metal–polymer multilayer structure

Research on the mechanical clinching process for the metal–polymer multilayer structure

Simulation of dieless clinching process considering the limit of blank holder

Enhancement of the tensile shear strength for joining low-ductility aluminium to high-strength steel by using electrically-assisted mechanical clinching (EAMC)

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