An experimental study on the compressing process for joining Al6061 sheets

Chen, Chao; Zhao, Shengdun; Cui, Minchao; Han, Xiaotao; Fan, Shuqin; Ishida, Tohru

doi:10.1016/j.tws.2016.08.007

Cited by 41 publications

(22 citation statements)

References 40 publications

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“…With the sheets plastic deformation generated, the interlock produced between the sheets is able to hook the upper and lower sheets together, which makes clinched joint get a high strength [14][15][16][17]. The clinching process using extensible dies can be divided into four phases: (a) localized plastic deformation of the sheets, (b) drawing, (c) radial material flowing, and (d) indirect extrusion.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Restored Joint for Aluminum Alloy

Chen

Zhang

Peng

et al. 2020

Metals

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In recent years, the mechanical clinching method plays an increasingly important role in the building of thin-walled structures. The clinched joint can be employed to join the lightweight materials. Compared with other joining methods, the clinched joint has better mechanical behavior. However, the clinched joint may be deformed during use when it bears a high shear force. In this research, a process to join aluminum alloy and restore deformed joint was proposed and investigated. The clinched joint was deformed in the deforming process. Then, a customized rivet and two flat restoring tools were utilized for restoring the deformed joint to join aluminum alloy. Different restoring forces such as 45, 40, 35, 30, 25, and 20 kN were employed to produce diverse restored joints. Some shearing tests on the restored joint were utilized for understanding joint material flow, mode of failure, thickness of neck, shear strength, and absorption of energy. The thickness of neck can be increased in restoring process, which contributes to improve the shear strength. The rivet embedded in a pit also helps restored joint bear shear force, so all of the restored joints have higher absorption of energy and shear strength than the clinched joints. The restoring process effectively restores the deformed joint to obtain better mechanical behavior.

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Section: Introductionmentioning

confidence: 99%

Investigation of the Restored Joint for Aluminum Alloy

Chen

Zhang

Peng

et al. 2020

Metals

Self Cite

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“…The results also showed that the proportions of these two fretting wear modes could be impacted by the applied load levels. Chen et al [12][13][14][15][16][17] investigated a new clinching reshaping method by using a pair of flat and bumped die to reduce the button height. Their work showed that a flat surface can be created by the improved clinching process to increase the joint strength of clinching.…”

Section: Introductionmentioning

confidence: 99%

The influence of tool geometry and process parameters on joined sheets by clinching

Tenorio

Lajarin

Gipiela

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

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In this work, the process of clinching was studied through practical experiments and also by computer simulation using finite element method (FEM). The influence of different joint geometries and process parameters on the strength of joints joined by clinching was studied. Subsequently, a practical study with the aim of comparing its results with FEM results was carried out. It was possible to observe that the geometry of the clinching tool and the choice of process parameters influence the interlocking strength. FEM simulations showed similar results to the practical experiments and also avoided the manufacture of different tools and the accomplishment of several experiments.

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“…However, an additional rivet was required in the process, which may increase the weight and cost of the clinched joint. Chen et al (2016c) used the second step to reduce the protrusion height of the clinched joint. The protrusion height was reduced from 1.62 to 0.94 mm.…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental investigations of the two-step clinching process with a bumped die

Chao

Ishida

Wang³

et al. 2018

JAMDSM

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In order to increase the shearing strength and reduce the protrusion height of the clinched joint, a two-step clinching process was designed and investigated in the study. A clinching machine produced by Express Company and extensible dies were used to produce the clinched joint, while a flat die and a bumped die were used to produce the two-step clinched joint. A 2D model in the software DEFORM-2D was applied to analyze the material flow and effective stress distribution of the two-step clinched joint. To validate the numerical model, experimental tests were carried out to get the main geometrical parameters of the two-step clinched joint. The two-step clinching method could increase the neck thickness with the decrease of the protrusion height. Shearing tests were carried out to obtain the shearing strengths of the two-step clinched joints. The results showed that the shearing strength and energy absorption of the joint could be increased by the two-step clinching process because of the increased neck thickness. The two-step clinching method was proved to be effective for increasing the shearing strength and energy absorption of the clinched joint.

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An experimental study on the compressing process for joining Al6061 sheets

Cited by 41 publications

References 40 publications

Investigation of the Restored Joint for Aluminum Alloy

Investigation of the Restored Joint for Aluminum Alloy

The influence of tool geometry and process parameters on joined sheets by clinching

Numerical and experimental investigations of the two-step clinching process with a bumped die

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