Numerical and experimental investigations of the reshaped joints with and without a rivet

Chen, Chao; Zhao, Shengdun; Cui, Minchao; Han, Xiaotao; Ben, Ning-yu

doi:10.1007/s00170-016-8889-5

Cited by 39 publications

(25 citation statements)

References 21 publications

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“…Tensile strength is always used to assess the joining reliability of the joint [ 42 ]. The static tensile strengths of the joints formed by joining forces of 60, 70, 80, and 90 kN are shown in Figure 19 .…”

Section: Resultsmentioning

confidence: 99%

Investigation of Flat Clinching Process Combined with Material Forming Technology for Aluminum Alloy

et al. 2017

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In recent years, the use of aluminum alloy has tended to increase for building lightweight automobiles to reduce their automotive weight, which is helpful to save energy and protect the environment. In order to join aluminum alloy, a flat-clinching process combined with material forming technology was investigated to join aluminum alloy sheets using an experimental and a numerical method. Al1060 was chosen as the material of the sheet, and DEFORM-2D software was used to build the numerical model. After the numerical model was validated by the experimental results, the influences of punch diameter and holder force on the materials deforming behavior of the clinched joint were analyzed using the numerical model. Then, the material flow, joining ability, and joining quality were investigated to assess the clinched joint. The results showed that an increase in punch diameter could give rise to an increase in neck thickness and interlocking length, while an increase in blank holder force induced a decrease in interlocking length and an increase in neck thickness. The joining quality could be increased by increasing the forming force. It can be concluded that a clinched joint has better joining quality for joining light-weight sheets onto automotive structures.

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Section: Resultsmentioning

confidence: 99%

Investigation of Flat Clinching Process Combined with Material Forming Technology for Aluminum Alloy

et al. 2017

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“…16 Shearing force-displacement curves of the joints In this study, a flat die and a bumped die were used to reshape the clinched joint. Compared with the reshaped joint with two flat die (Chen et al, 2017f), the two-step clinched joint with a flat die and a bumped die can get higher strength.…”

Section: Shearing Strengthmentioning

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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“…The height-reducing technique is effective for increasing the load-bearing capacity of the clinched joint. Chen et al [ 221,222 ] also proposed a riveting technique to reshape the clinched joint. With this new technique, the protrusion can be compressed in a single stroke by a pair of flat dies.…”

Section: Modified Clinching Processesmentioning

confidence: 99%

Clinching for sheet materials

2017

Science and Technology of Advanced Materials

106

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Numerical and experimental investigations of the reshaped joints with and without a rivet

Cited by 39 publications

References 21 publications

Investigation of Flat Clinching Process Combined with Material Forming Technology for Aluminum Alloy

Investigation of Flat Clinching Process Combined with Material Forming Technology for Aluminum Alloy

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

Clinching for sheet materials

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