Friction stir lap joining of 2198 aluminum–lithium alloy with weaving and pulsing variants

Gibson, Brian T.; Ballun, M.C.; Cook, Gerald; Strauss, Alvin M.

doi:10.1016/j.jmapro.2014.12.002

Cited by 16 publications

(6 citation statements)

References 30 publications

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“…All the procedures developed to optimise the performance of the FSW technology, in the joining of similar and dissimilar combinations of base materials, were classified as techniques related to the FSW technology (FSW variants). Analysing Table 1, where the FSW variants are listed, it is possible to conclude that the procedures developed aimed the enhancement of the heating conditions during welding [56][57][58][59][60][61], the improvement of base materials stirring/bonding [62][63][64][65][66][67][68][69] and/or the fabrication of double-sided joints [70][71][72]. FSW procedures/tools developed with the specific aim of enabling the joining of dissimilar materials [73][74][75][76], very thin plates [77] or performing weld repair [78] were also identified and classified as FSW variants.…”

Section: Fsw Variants and Related Technologiesmentioning

confidence: 99%

Friction stir welding industrialisation and research status

Magalhães

Leitão

Rodrigues

2018

Science and Technology of Welding and Joining

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This paper intends to provide a perspective on the current development of the friction stir welding (FSW) technology. The industrialisation of the technology and related research were assessed by analysing patent and scientific publications databases. The literature reviews on FSW and related technologies were also collected and analysed. The work performed enabled to understand the main areas of industry/research where the FSW technology is being applied/explored and the geographical distribution of the main players in its implementation/research. The main FSW process variants, the materials already welded/processed using it, as well as the applications envisaged, were also analysed. The data collected shows that the FSW technology, originally developed for the joining of light alloys, became a research tool with interest in several fields of engineering and material science.

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Section: Fsw Variants and Related Technologiesmentioning

confidence: 99%

Friction stir welding industrialisation and research status

Magalhães

Leitão

Rodrigues

2018

Science and Technology of Welding and Joining

View full text Add to dashboard Cite

show abstract

“…To date, literature reporting the friction stir lap welding of AA 2198 sheets is scarce, despite of the interesting opportunities related to applications in the aerospace sector. One of the earliest study on this topic was authored by Gibson et al [21]. The joints produced at welding speeds of 200 and 350 mm/min exhibited higher ultimate load in tension-shear testing, compared to joints welded at 75 mm/min.…”

Section: Introductionmentioning

confidence: 99%

Dissimilar friction stir lap welding of AA2198 and AA7075 sheets: forces, microstructure and mechanical properties

Astarita

Tucci

Silvestri

et al. 2021

Int J Adv Manuf Technol

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This paper investigates the dissimilar friction stir lap welding of AA2198 and AA7075 sheets. The influence of processing parameters, namely welding speed and tool rotational speed on joint features, microstructure, and mechanical properties were studied by implementing a full factorial design of experiments. Axial and transversal forces were continuously measured during the welding process using a sensed fixture aiming at the correlation of processing parameters, forces, and quality of the achieved joints. Obtained outcomes showed hook formation for all the combination of parameters and the existence of a very narrow processing window in which it is possible to avoid the formation of internal defects, such as grooves and tunnels. The influence of the weld bead morphology on the lap shear strength was elucidated proving that the strength is ruled by the hook morphology. The microstructure of the joints was studied and discussed considering also the microhardness distribution. Graphical abstract

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“…Gibson et al [23] published one of the rst studies reporting the similar friction stir lap welding of AA 2198 sheets and testing their mechanical behavior. The joints produced at welding speeds of 200 and 350 mm/min exhibited higher ultimate load in tension-shear testing, compared to joints welded at 75 mm/min.…”

Section: Introductionmentioning

confidence: 99%

Dissimilar Friction Stir Lap Welding of AA2198 and AA7075 Sheets: Forces, Microstructure and Mechanical Properties

Astarita

Tucci

Silvestri

et al. 2021

Preprint

View full text Add to dashboard Cite

This paper deals with the dissimilar friction stir lap welding of AA2198 and AA7075 sheets. The influence of processing parameters, namely welding speed and tool rotational speed on joint features, microstructure, and mechanical properties were investigated implementing a full factorial design of experiments. During the welding process, axial and transversal forces were continuously measured using a dedicated sensed fixture aiming at the correlation of this processing parameter with the quality of the achieved joints. The reported outcomes showed a very narrow processing window in which it was possible to avoid the formation of defects while the formation of an hook was observed for all the joints welded. The influence of the weld bead morphology on the lap shear strength was elucidated proving that the strength is ruled by the hook morphology. A correlation between the process parameters and the forces arising was also attempted. The final microstructure of the joints was studied and explained and also compared with the microhardness results.

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Friction stir lap joining of 2198 aluminum–lithium alloy with weaving and pulsing variants

Cited by 16 publications

References 30 publications

Friction stir welding industrialisation and research status

Friction stir welding industrialisation and research status

Dissimilar friction stir lap welding of AA2198 and AA7075 sheets: forces, microstructure and mechanical properties

Dissimilar Friction Stir Lap Welding of AA2198 and AA7075 Sheets: Forces, Microstructure and Mechanical Properties

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Friction stir lap joining of 2198 aluminum–lithium alloy with weaving and pulsing variants

Cited by 16 publications

References 30 publications

Friction stir welding industrialisation and research status

Friction stir welding industrialisation and research status

Dissimilar friction stir lap welding of AA2198 and AA7075 sheets: forces, microstructure and mechanical properties

Dissimilar Friction Stir Lap Welding of AA2198&nbsp;and AA7075&nbsp;Sheets: Forces, Microstructure and Mechanical Properties

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Dissimilar Friction Stir Lap Welding of AA2198 and AA7075 Sheets: Forces, Microstructure and Mechanical Properties