Numerical Analysis of the Scalability of Roller Clinching Processes

Hiller, Maria; Vitzthum, Simon; Häcker, Martin; Benkert, Tim; Volk, Wolfram

doi:10.4028/www.scientific.net/kem.767.377

Cited by 7 publications

(5 citation statements)

References 13 publications

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“…The geometrical parameters "neck thickness" and "undercut" are mainly influenced by the punch rolling radius, and less so by the roll distance. The punch rolling radius can be mathematically described by a cycloid [16]. The behavior can differ between normal, shortened and extended cycloids, which has high influence on the clinchpoint formation.…”

Section: Resultsmentioning

confidence: 99%

“…Numerical investigation of the scalability of roller clinching showed that the material flow during clinchpoint formation is mainly influenced by the roll distance and the punch and die rolling radii [16]. Hence, a new, more variable tool setup for roller clinching was developed, which enlarges the parameter area [17].…”

Section: Methodsmentioning

confidence: 99%

“…This contrary behavior can be explained by the tool paths. The punch movement can be mathematically described by a cycloid [16]. A punch rolling radius of 48.5 % is equivalent with a shortened cycloid, which leads to a larger impact angle.…”

Section: Neck Thickness and Undercutmentioning

confidence: 99%

“…Because of this, a roller clinched joint is asymmetric in the feed direction, which reduces the joint strength [15]. The main influencing parameters of this asymmetry are the roll distance, the punch and die rolling radii and the clinchpoint diameter [16].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Experimental investigation of the scalability of roller‐clinching processes with regard to joint strength and failure mode

Vitzthum

Hiller

Volk

2019

Materialwissenschaft Werkst

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Clinching is a joining technology, which does not need any auxiliary joining elements, and which enables a wide variety of different materials to be joined. Therefore, it fulfills the demands of multi-material lightweight design. Because of the translational tool movement, continuous joining is not possible. To overcome this disadvantage, roller clinching uses rotational tool movement. It is a novel joining technology, which combines the advantages of conventional clinching with rotary processes. Based on previous studies, the process scalability of roller clinching is investigated within this study. A comprehensive experimental parameter study is thus shown to reveal the influence of the following geometrical process parameters: roll distance, punch and die rolling radii and clinchpoint diameter. Furthermore, process limits are identified. The joint quality is evaluated using three different methods. Microsections are recorded and the joint strength is measured using pull-out as well as shear tests. The results are shown in relation to each other and connected to the particular failure mode. Finally, conclusions are derived to enable the further development of the process of roller clinching.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Neck Thickness and Undercutmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Experimental investigation of the scalability of roller‐clinching processes with regard to joint strength and failure mode

Vitzthum

Hiller

Volk

2019

Materialwissenschaft Werkst

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“…Roller clinching [122,123] is a mechanical joining method that combines conventional clinching with rotational tool movement. As shown in Fig.…”

Section: Roller Clinchingmentioning

confidence: 99%

The State of the Art of Finite Element Analysis in Mechanical Clinching

Zhang

Peng

et al. 2021

Int. J. of Precis. Eng. and Manuf.-Green Tech.

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Clinching technology is a mechanical connection technology that is applied to connect metal or non-metal sheet materials. It is widely used in different applications, such as automobile, aircraft, household appliances and other industries. In order to reduce weight, save energy, reduce fuel consumption, reduce pollution and curb global warming, lightweight structures with clinched joint are increasingly used in transportation. The finite element technology is popularized in engineering, so that it can get similar results with the test after investing less time, manpower, energy and material resources, which is conducive to the prediction and smooth progress of the test. A review of the finite element analysis of clinching technology is provided in the present paper. The article's work also discusses the strength of the clinched joint, the factors influencing the clinched joint's strength, the failure mechanism of the clinched joint, etc. Furthermore, the novel technologies of clinching as well as the finite element models and methods used in clinching, are introduced. The present paper's main objective was to review the recent developments in the finite element analysis of clinching and provide a basis for further investigation in this area of research.

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