A comparison of the mechanical behaviour of self-piercing riveted and resistance spot welded aluminium sheets for the automotive industry

Han, Lei; Thornton, Martin; Shergold, Mike

doi:10.1016/j.matdes.2009.08.031

Cited by 115 publications

(45 citation statements)

References 9 publications

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“…Their results showed that the SPR joints had similar or better lap shear and T-peel strengths than the equivalent RSW joints. Further research from Han et al [113] showed that the strength of SPR joints and RSW joints was material stack and process parameters related. Their results showed that when different joint stacks were studied or when different process parameters were used, the static strength of the SPR joints could be higher or lower than that of the RSW joints, but generally speaking, SPR joints had a better T-peel strength and RSW joints had a better cross-tension strength, which matched well with the results from Doo [7].…”

Section: Comparison Of Spr Joints With Joints From Other Processesmentioning

confidence: 99%

Self-piercing riveting-a review

Chrysanthou

Imran

et al. 2017

Int J Adv Manuf Technol

238

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Self-piercing riveting (SPR) is a cold mechanical joining process used to join two or more sheets of materials by driving a rivet piercing through the top sheet or the top and middle sheets and subsequently lock into the bottom sheet under the guidance of a suitable die. SPR is currently the main joining method for aluminium and mixed-material lightweight automotive structures. SPR was originated half century ago, but it only had significant progress in the last 25 years due to the requirement of joining lightweight materials, such as aluminium alloy structures, aluminium-steel structures and other mixed-material structures, from the automotive industry. Compared with other conventional joining methods, SPR has many advantages including no pre-drilled holes required, no fume, no spark and low noise, no surface treatment required, ability to join multi-layer materials and mixed materials and ability to produce joints with high static and fatigue strengths. In this paper, research investigations that have been conducted on self-piercing riveting will be extensively reviewed. The current state and development of SPR process is reviewed and the influence of the key process parameters on joint quality is discussed. The mechanical properties of SPR joints, the corrosion behaviour of SPR joints, the distortion of SPR joints and the simulation of SPR process and joint performance are reviewed. Developing reliable simulation methods for SPR process and joint performance to reduce the need of physical testing has been identified as one of the main challenges.

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Section: Comparison Of Spr Joints With Joints From Other Processesmentioning

confidence: 99%

Self-piercing riveting-a review

Chrysanthou

Imran

et al. 2017

Int J Adv Manuf Technol

238

View full text Add to dashboard Cite

show abstract

“…[1] Although widely used to weld steel sheet, resistance spot welding (RSW) is more difficult to apply to light alloys because of their high conductivity, low strength at elevated temperature, and tendency to degrade the electrodes. [2,3] Furthermore, alternative point joining processes like self-piercing rivets [4][5][6] have high consumable costs. FSSW has already been applied successfully in automotive manufacturing by the Mazda Motor Corporation, which claims large energy and capital investment gains compared with RSW (~90 pct energy savings and 40 pct investment reduction [1] ).…”

Section: Introductionmentioning

confidence: 99%

Material Interactions in a Novel Pinless Tool Approach to Friction Stir Spot Welding Thin Aluminum Sheet

Bakavos

Chen

Babout

et al. 2010

Metall Mater Trans A

117

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The requirement for a probe, or pin, in friction stir spot welding (FSSW) leads to an undesirable keyhole and ''hooking,'' which can influence the fracture path and weld strength. Furthermore, the full weld cycle for FSSW is typically longer than ideal for the automotive industry, being 2 to 5 seconds. Here, it is shown that using a novel pinless tool design it is possible to achieve high lap shear strength (~3.4 kN) in thin aluminum sheet (~1 mm thick), with short weld cycle times (<1 second). Several techniques have been exploited to study the material flow and mechanisms of weld formation in pinless FSSW, including high-resolution X-ray tomography, to understand the role of the tool design and weld parameters. Despite the ''simple'' nature of a pinless tool, material flow in the weld zone was found to be surprisingly complex and strongly influenced by surface features on the tool, which greatly increased the penetration of the plastic zone into the bottom sheet. Because of the rapid thermal cycle and high level of grain refinement, the weld zone was found to develop a higher strength than the parent material with little evidence of a heat affected zone (HAZ) after postweld natural aging.

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“…Riveting; SPR) 6,7) , 마찰교반점접합(Friction Stir Spot Welding, 이하 FSSW로 표기) 8 , 전 세계적으로 주목을 받아, 이에 대한 연구 및 개발이 활발히 진행되고 있다 [8][9][10] .…”

Section: 서 론unclassified

Influence of Welding Parameters on Macrostructure and Mechanical Properties of Friction-Stir-Spot-Welded 5454-O Aluminum Alloy Sheets

Choi¹,

Kwon²,

Yoon³

et al. 2011

Journal of the Korean Welding and Joining Society

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Friction stir spot welding between 5454 aluminum alloy sheets with the different thicknesses of 1.4 and 1.0 mm was performed. In the welding process, the tool for welding was rotated ranging from 500 to 2500, and plunged to the depth of 1.8 mm under a constant tool plunge speed of 100 mm/min. And then, the rotating tool was maintained at the plunge depth during the dwell time ranging from 0 to 7 sec. The pull-out speed of the rotating tool was 100 mm/min. The increase of tool rotation speed resulted in the change of the macrostructure of friction-stir-spot-welded zone, especially the geometry of welding interface. The results of the tensile shear test showed that the total displacement and toughness of the welds were increased with the increase of the tool rotation speed, although the maximum tensile shear load was decreased. However, the change in the dwell time at the plunge depth of the tool did not produce the remarkable variation in the macrostructure and mechanical properties of the welds. In all cases, the average hardness in friction-stir-spot-welded zone was higher than that of the base metal zone. By the friction stir spot welding technique, the welds with the excellent mechanical properties than the mechanically-clinched joints could be obtained.

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A comparison of the mechanical behaviour of self-piercing riveted and resistance spot welded aluminium sheets for the automotive industry

Cited by 115 publications

References 9 publications

Self-piercing riveting-a review

Self-piercing riveting-a review

Material Interactions in a Novel Pinless Tool Approach to Friction Stir Spot Welding Thin Aluminum Sheet

Influence of Welding Parameters on Macrostructure and Mechanical Properties of Friction-Stir-Spot-Welded 5454-O Aluminum Alloy Sheets

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