Improvement of Mechanical Behavior of FSW Dissimilar Aluminum Alloys by Postweld Heat Treatments

Sundaramoorthy, Prabhu; Sri, M. Naga Swapna; Anusha, P.; Murali, G.; Kannan, K.; Manickam, Selvaraj

doi:10.1155/2022/3608984

Cited by 6 publications

(3 citation statements)

References 23 publications

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“…Additionally, the process can be slower than traditional welding methods, which can be a disadvantage in some applications. Many studies conducted in the last fifteen years have studied the FSW of dissimilar Al alloy joints focusing on several aspects such as process optimization, effect of process parameters, microstructure, mechanical properties, and heat treatments [31][32][33][34][35]. The aim of this review is to present that the process parameters influence the properties of a friction stir welded joint between two dissimilar aluminum alloys.…”

Section: Effect Of Process Parametersmentioning

confidence: 99%

Effect of Process Parameters on Friction Stir Welded Joints between Dissimilar Aluminum Alloys: A Review

Bella

Favaloro

Borsellino

2023

Metals

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Friction Stir Welding is a suitable solid-state joining technology to connect dissimilar materials. To produce an effective joint, a phase of optimization is required which leads to the definition of process parameters such as pin geometry, tool rotational speed, rotation direction, welding speed, thickness of the sheets or tool tilt angle. The aim of this review is to present a complete and detailed frame of the main process parameters and their effect on the final performance of a friction stir welded joint in terms of mechanical properties and microstructure. Attention was focused in particular on the connection between different aluminum alloys. Moreover, the experimental results were correlated to the development and the applications of tools which can be effectively used in the design of the manufacturing process such as finite element analyses, artificial neural networks, and statistical studies. The review also aims to be a point of reference to identify the best combinations of process parameters based on the dissimilar aluminum to be joined.

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Section: Effect Of Process Parametersmentioning

confidence: 99%

Effect of Process Parameters on Friction Stir Welded Joints between Dissimilar Aluminum Alloys: A Review

Bella

Favaloro

Borsellino

2023

Metals

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“…The properties of FSW joints and the extent of their service life can be improved by several effective methods [254], including heat treatment, cold spraying, laser cladding, microarc oxidation, and electrochemical deposition [535][536][537][538][539].…”

Section: Reinforcement Of Weldment and Application Of Coatingmentioning

confidence: 99%

Studies on the Quality of Joints and Phenomena Therein for Welded Automotive Components Made of Aluminum Alloy—A Review

Derbiszewski,

Obraniak,

Rylski

et al. 2024

Coatings

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To fulfill the need to limit automotive emissions, reducing vehicle weight is widely recommended and achieved in many ways, both by the construction of individual elements of the vehicle and by the selection of light materials, including Al alloys. Connecting these elements with each other and with elements made of iron alloys can be realized, inter alia, by welding or stir welding. However, the quality of the welds obtained varies widely and depends on many design, operational, and environmental factors. The present study focused on a review of various welding techniques used to join both similar and dissimilar Al alloys utilized in the automotive industry, the effect of various process parameters on weld quality, and the phenomena observed in such welds. The research methodology was based on the analysis of the content of articles from main databases. Apart from capturing the current state of the art, this review evaluates reaching the possible highest joint quality and welding process disadvantages such as porosity, poor surface quality, a tendency toward hot cracking, and low ductility for the Al alloys applied in the automotive industry.

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“…The mechanical properties of the AA6xxx and AA7xxx alloys can be enhanced using post-weld heattreatment (PWHT) procedures, even after any production process [14][15][16][17][18][19]. The HAZ, PDZ, and the Severely Deformed Zone (SDZ) are three separate zones that are created in aluminium alloys during friction welding [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Studying the STA effects on aluminium alloy joints by friction welding

Bakkiyaraj,

Ananth,

Sivamaran

et al. 2023

Phys. Scr.

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This article examines the properties of joints fabricated by friction welding (FW) using AA6061-T6 and AA7075 as examples of both similar and dissimilar metals. It also looks at how heat treatment after welding affects the metallurgical characteristics of the joint. The heat treatment method under investigation combines solutionizing heat treatment with synthetic ageing (STA). The tensile characteristics, microhardness, and microstructure of the as-welded and STA-treated welded specimens are assessed in the paper using mechanical testing equipment and metallurgical characterization methods. The findings demonstrate that the joint characteristics are enhanced by precipitate nucleation occurring in the joint interface of the FW similar and dissimilar joint under STA treatment. On the other hand, the STA influence on the tensile strength (TS) of joints made with AA7075 was greater than that of similar joints made with AA6061-T6, as well as dissimilar joints made with both AA6061-T6 and AA7075. Additionally, after STA treatment, the similar joints showed a uniform distribution of hardness. However, in the dissimilar joint after STA treatment, the hardness dropped suddenly on the AA6061-T6 side, specifically from the partially deformed zone (PDZ) towards the heat affected zone (HAZ).

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Improvement of Mechanical Behavior of FSW Dissimilar Aluminum Alloys by Postweld Heat Treatments

Cited by 6 publications

References 23 publications

Effect of Process Parameters on Friction Stir Welded Joints between Dissimilar Aluminum Alloys: A Review

Effect of Process Parameters on Friction Stir Welded Joints between Dissimilar Aluminum Alloys: A Review

Studies on the Quality of Joints and Phenomena Therein for Welded Automotive Components Made of Aluminum Alloy—A Review

Studying the STA effects on aluminium alloy joints by friction welding

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