Numerical and experimental investigations of extensible die clinching

He, Xiaocong; Liu, Fulong; Xing, Baoying; Yang, Huiyan; Wang, Yuqi; Gu, Fengshou; Ball, Andrew

doi:10.1007/s00170-014-6078-y

Cited by 69 publications

(34 citation statements)

References 23 publications

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“…22 Extendable clinching machine with tool configuration. a Clinching machine, b extendable die and punch tool, and c schematic drawing of the extendable die [52] …”

Section: Quality Of the Jointmentioning

confidence: 99%

Clinching process for joining dissimilar materials: state of the art

Eshtayeh

Hrairi

Mohiuddin

2015

Int J Adv Manuf Technol

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Clinching is a method for mechanically joining sheet metal of different thickness and properties in which the two plates to be joined undergo plastic deformation. The clinching process is established by connection or joining using simple tools: a punch and a die. This method has different characteristics compared to thermal joining methods, such as spot welding, including low purchase and operating costs, little preparatory work, safe and environmentally friendly, interesting mechanical properties, reproducibility, and durability. In this article, a brief review of traditional joining methods for dissimilar materials and the clinching process are illustrated in greater detail. In addition, the article looks to guide researchers for future work by identifying weaknesses of the current processes as well as potential for valuable contributions in the field of clinching.

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“…22 Extendable clinching machine with tool configuration. a Clinching machine, b extendable die and punch tool, and c schematic drawing of the extendable die [52] …”

Section: Quality Of the Jointmentioning

confidence: 99%

Clinching process for joining dissimilar materials: state of the art

Eshtayeh

Hrairi

Mohiuddin

2015

Int J Adv Manuf Technol

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“…He et al [26] studied the extensible die clinching process numerically using FEA commercial software LS-DYNA for a clinching joint both with and without adhesive. The axisymmetric nature of the clinching process allowed generating a 2D axisymmetric model based on the Cowper-Symonds material models.…”

Section: Extensible Die Clinchingmentioning

confidence: 99%

“…c Sheet thicknes t=1.6 Fig. 12 The simulation steps for the extensible die of the clinging process [26] sheets makes the plastic joining difficult. Furthermore, the optimization of the die by FE simulation was used without changing the mechanical properties of the sheets or the materials used for joining.…”

Section: Strength Of the Clinch Jointsmentioning

confidence: 99%

Recent and future development of the application of finite element analysis in clinching process

Eshtayeh

Hrairi

2015

Int J Adv Manuf Technol

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Clinching is a mechanical joining method using a simple toolset consisting of a punch, a die, and a blank holder. The shapes of these tools are the most important parameters that control the final geometry of the clinch joints and consequently the strength and quality of the latter. In order to save time and cost, these geometric parameters could be optimized by the use of finite element simulation. This paper reviews the published research related to the finite element modeling of the clinching process. In this study, a critical review of the latter had been carried out from different perspectives. The findings about difficulties facing the simulations of different clinching processes, the optimization of the process parameters, and the strength, joinability, and the quality of the joint were highlighted. In addition, future development, investigation, and more research are still needed to minimize problems and expenses in the industrial practical application of clinching.

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“…Firstly, the employment of the extensible dies can reduce the forming loads and increase the joining strength (Lambiase and Di Ilio, 2014). Secondly, a better interlock can be produced by the extensible dies with the material flow radially (He et al, 2014a). Thirdly, extensible dies are flexible to join different metal sheets with a wide range of sheet thickness.…”

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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Numerical and experimental investigations of extensible die clinching

Cited by 69 publications

References 23 publications

Clinching process for joining dissimilar materials: state of the art

Clinching process for joining dissimilar materials: state of the art

Recent and future development of the application of finite element analysis in clinching process

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

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