Joining three car body steel sheets by clinching
method

Kaščák, Ľuboš; Spišák, Emil; Majerníková, Janka

doi:10.1515/eng-2016-0081

Cited by 15 publications

(13 citation statements)

References 27 publications

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“…At the same time, to validate the results in relation to the size of elements, a mesh sensitivity study was carried out to avoid the mesh distortion during the clinching process [123]. Figure 11(b) shows different tools including rectangular and round, these tools are regarded as rigid body, while single sheet, double sheets and three sheets are deformable bodies [57,124]. In general, the mechanical properties of the deformable bodies need to be analyzed exclusively.…”

Section: Simulation Analysismentioning

confidence: 99%

“…Because high-strength sheets are connected by using clinching technology, the punch wear will greatly influence the quality of clinched joint, so the tool wear will be tested and analyzed to avoid crack [56]. It is worth mentioning that L. Kašcák et al have found a double lock structure with three high-strength steel sheets that has higher strength in spite of a smaller mechanical lock [57]. Although the three high-strength steel sheets were joined by clinching method successfully, the application of this combination needs to be further excavated.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Connection of difficult-to-form sheets by clinching process: A review

Wang

Gao

et al. 2022

Materials Science and Technology

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The clinching technology attracted increasing attention in recent years, but its application might be restricted due to the growing employment of materials that are difficult to join and hybrid structures involving different mechanical performance materials. Traditional clinching technology has limitations of strain rate sensitivity, ductility and damage fracture when applied to materials with high strength, low strain-to-failure and low plasticity. However, the ductility and formability of the material represent a limitation for the clinching process. The present study explored some concepts of clinching, such as hole, friction-assisted, laser-assisted, electro-hydraulic, electromagnetically assisted and hot assisted clinching, for the difficult-to-form sheets. The paper includes the description of the deformation mechanism of clinched joints and the analysis of clinched joint performance and applicability.

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Section: Simulation Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Connection of difficult-to-form sheets by clinching process: A review

Wang

Gao

et al. 2022

Materials Science and Technology

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“…Bottom thickness (X ), exterior protrusion height (H ), neck thickness (t n ), and interlock value (t s ) are the main geometric parameters of the joints. 31,[34][35][36] The height of the exterior protrusion affects the application field and aesthetics of the clinched joint, while the interlock value (t s ) and the neck thickness (t n ) affect the failure mode and static strength of the clinched joint directly.…”

Section: Mechanism Of Mechanical Clinching With Extensible Diesmentioning

confidence: 99%

Experimental investigation on the cross-tensile properties of tubular rivet-reinforced joints

Ren

Chen

Peng

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part E:

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To decrease the exterior protrusion height and improve the tensile strength of the clinched joint, a rivet-reinforcing method was implemented on the clinched joint in this study. Solid rivets and tubular rivets with the wall thickness of 1.0 mm, 1.5 mm, and 2.0 mm were employed to conduct the rivet-reinforcing experiments on the clinched joints. Mechanical interlock structure measurements and mechanical properties tests were performed on the above-mentioned reinforced joints. The results show that the rivet-reinforcing technology can significantly increase the tensile strength and improve the mechanical behavior of the clinched joint. Compared with the NRJ joint (the reinforced joint with no rivet), the static tensile strength of TRJ-1.0 (the rivet-reinforced joint with the tubular rivet of 1 mm wall thickness), TRJ-1.5 (the rivet-reinforced joint with the tubular rivet of 1.5 mm wall thickness), TRJ-2.0 (the rivet-reinforced joint with the tubular rivet of 2 mm wall thickness), and SRJ joint (the rivet-reinforced joint with the solid rivet) is separately increased by 30.05%, 24.59%, 16.28%, and 7.19%. The TRJ-1.0 joint has the highest tensile strength (1489.57 N) among the five types of reinforced joints in the cross-lap-tensile test. The energy absorption capacity of the rivet-reinforced joints decreases as the wall thickness of the tubular rivet increases. Therefore, the TRJ-1.0 joint has the highest energy absorption that is 5.890 J, while the energy absorption of the SRJ joint is the lowest, which is 2.868 J. The TRJ-1.0 joint has the most excellent strength performance in the lightweight evaluation, which with a lightweight evaluation value of [Formula: see text]. However, the TRJ-1.5 joint has the most outstanding energy absorption performance in the aspect of lightweight evaluation, with a lightweight evaluation value of [Formula: see text]. The experiment has proven that the clinched joints reinforced with 1 mm wall thickness tubular rivets have the best mechanical properties.

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“…Not only two sheets, but also three sheets are joined by mechanical clinching. Kaðèák et al have joined the three steel sheets [ 43 ] and a sheet combination including the high strength steel and aluminium alloy sheets [ 44 ]. However, the three sheets including the ultra-high strength and aluminium alloy sheets are not tried.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Clinching and Self-Pierce Riveting of Thin Three Sheets of 5000 Series Aluminium Alloy and 980 MPa Grade Cold Rolled Ultra-High Strength Steel

et al. 2020

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One thin 5000 series aluminium alloy sheet and two thin 980 MPa grade cold rolled ultra-high strength steel sheets were joined by self-pierce riveting and mechanical clinching processes. The joinabilities for a combination of the aluminium and steel sheets in both processes were investigated for different die shapes in the experiment and finite element simulation. In self-pierce riveting, the three sheets were successfully joined for both combinations of the upper and lower aluminium alloy sheets by optimizing the shapes of a die and rivet. In mechanical clinching, the three sheets were successfully joined by an optimum die for the configuration of the upper aluminium alloy sheet. On the other hand, the three sheets for the configuration of the lower aluminium alloy sheet were not joined even by optimizing the die shape in the both finite element simulation and experiment, because the material flow of the steel sheets was insufficient to form the two interlocks. The tension-shear loads for the clinched and riveted sheets with the adhesive were almost the same, because the load for the adhesive was the highest. In the cross-tension test, however, the load by the adhesive was comparatively small.

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Joining three car body steel sheets by clinching method

Cited by 15 publications

References 27 publications

Connection of difficult-to-form sheets by clinching process: A review

Connection of difficult-to-form sheets by clinching process: A review

Experimental investigation on the cross-tensile properties of tubular rivet-reinforced joints

Mechanical Clinching and Self-Pierce Riveting of Thin Three Sheets of 5000 Series Aluminium Alloy and 980 MPa Grade Cold Rolled Ultra-High Strength Steel

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