Friction Stir Spot Welding-Process and Weld Properties: A Review

Sharma, C.B.; Tripathi, Ajay; Upadhyay, Vikas; Verma, Vijay; Sharma, Shakti

doi:10.1007/s40033-021-00276-z

Cited by 8 publications

(3 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Solid state welding ensures ease of welding dissimilar metals, namely aluminum and copper. , Metallurgical incompatibility and postprocessing requirements with traditional welding techniques are addressed with the solid-state welding process. , In addition, solid-state welding techniques offer a high strength-to-weight ratio, formability, and high speed of operation in joining parts. Friction stir spot-welding (FSSW) does not require lateral tool movement to produce such joints . The discontinuity in the mechanical and technical qualities of the materials to be welded (such as high-temperature strength, plastic deformation capacity, viscosity, etc.)…”

Section: Introductionmentioning

confidence: 99%

“…Friction stir spot-welding (FSSW) does not require lateral tool movement to produce such joints. 5 The discontinuity in the mechanical and technical qualities of the materials to be welded (such as high-temperature strength, plastic deformation capacity, viscosity, etc.) across the abutting surfaces is a significant challenge when connecting dissimilar Al-alloys by FSW/FSSW.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental Investigation and Characterization of Friction Stir Spot-Welded Dissimilar Aluminum Copper Metallic Lap Joints

Devarajan,

Karuppanan,

Duraisamy

et al. 2023

ACS Omega

View full text Add to dashboard Cite

Due to their contrasting physical properties, joining materials like copper and aluminum has always proven difficult. The disadvantages of traditional joining methods include additional weight, solidification problems, and energy waste. Friction stir spot-welding (FSSW) was utilized for joining copper and aluminum in order to get around these difficulties. This study illustrates that friction stir spot-welding (FSSW) produces joints between incompatible copper and aluminum alloys with better mechanical and electrical properties. The numerous FSSW parameters play an important role in deciding how well the welded joint performs. Tool rotational speed (TRS), plunge rate (PR), and dwell duration (DT) are the study parameters. During manufacture, a case-hardened H13 tool was used to lap-joint AA 6061 T6 hot-rolled aluminum flat strips with C11000 copper strips while operating at three different levels of TRS, PR and DT. SEM analysis was utilized to investigate the interface region and bimetallic interface of the joints. In order to demonstrate modifications in the grain-related characteristics, the joints were examined for electrical conductivity, mechanical strength (lap shear, bending, and microhardness test), and analysis of the microstructure at the weld zones. The outcome demonstrates that other factors, such as plunge rate, dwell time, and tool rotation speed, had the greatest impact on the joints' electrical conductivity, mechanical strength, and microstructure.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental Investigation and Characterization of Friction Stir Spot-Welded Dissimilar Aluminum Copper Metallic Lap Joints

Devarajan,

Karuppanan,

Duraisamy

et al. 2023

ACS Omega

View full text Add to dashboard Cite

show abstract

“…Frictional forces between the revolving tool and the fixed specimen and deformation generate heat which plasticizes, flows, and mixes the material from the edges to form the weld joint. [5][6][7][8][9][10] The use of optimum process parameters and tool geometry is essential to fabricate welds of high quality and superior mechanical properties without defects. Peak temperature and strain rate decrease with an increase in welding speed and increase the number and size of void defects in high depth to width ratio FSW of Al-Mg-Si alloy and can be accurately and practically studied using numerical models.…”

Section: Introductionmentioning

confidence: 99%

Estimation of fatigue crack growth rate in different zones of friction stir welded AA7039

Sharma¹,

Verma²,

Basanthkumar³

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

Self Cite

View full text Add to dashboard Cite

The present research aims to study the fatigue crack propagation and fracture toughness behavior of different zones of friction stir welds of AA7039 alloy, as different zones had varying microstructural and mechanical properties. Compact tension specimens with an initial notch in distinct weld zones parallel to the welding direction were machined using welded plates. Friction stir welding altered the base metal grain structure momentously, refined the grain structure in the weld nugget zone, and coarsen the same in the heat-affected zone. No correlation was observed between grain size and weld zone(s) hardness. Weld tensile properties were slightly inferior to base metal despite significantly higher hardness and alternation of grain structure. The fatigue life was dominated by the cycles consumed in crack propagation than crack initiation. The heat-affected zone had higher quasi-static fracture toughness, energy release rate, and resistance toward fatigue crack growth than other zones, because coarse grains and precipitates acted as effective impediments and slowed crack propagation. The heat-affected zone had a mixed-mode fracture, but the weld nugget zone and thermo-mechanically affected zone had an I mode fracture. On fracture surfaces, fracture characteristics such as microvoid coalescence were apparent.

show abstract

Microstructural and Mechanical Properties Characterization of Resistance Spot Welded Aluminum Alloy AA6063

Sharma¹,

Chandra²,

Rajak³

et al. 2022

Lecture Notes in Mechanical Engineering

View full text Add to dashboard Cite

Friction Stir Spot Welding-Process and Weld Properties: A Review

Cited by 8 publications

References 53 publications

Experimental Investigation and Characterization of Friction Stir Spot-Welded Dissimilar Aluminum Copper Metallic Lap Joints

Experimental Investigation and Characterization of Friction Stir Spot-Welded Dissimilar Aluminum Copper Metallic Lap Joints

Estimation of fatigue crack growth rate in different zones of friction stir welded AA7039

Microstructural and Mechanical Properties Characterization of Resistance Spot Welded Aluminum Alloy AA6063

Contact Info

Product

Resources

About