Experimental investigation of friction stir welding on aluminium AA6063

Hariharan, V.; Elumalai, Palani; Nambiraj, M.; Jayakar, J.; Parthasarathy, M.; Kamesh, Vinjamuri Venkata

doi:10.1016/j.matpr.2021.05.140

Cited by 2 publications

(1 citation statement)

References 19 publications

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“…Effect of several input weld factors on the TSFSW of the welded samples using diverse pin profiles. The temperature and load-displacement behaviour of the welds were also considered to realise the welding behaviour of PLA [33]. Taguchi method to optimize FSW process factors in order to increases the lap weld joints Tensile-Shear Strength (TSS) in composite PE sheets reinforced with carbon fibers.…”

Section: Introductionmentioning

confidence: 99%

Optimization of FSW parameters on bio-inspired jigsaw suture patterns to improve the tensile strength of dissimilar thermoplastics

et al. 2023

Mater. Res. Express

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This study aimed to intensify the Tensile Strength (TSFSW) of dissimilar thermoplastic joints by utilizing a bio-inspired jig saw suture and optimizing the Friction Stir Welding (FSW) limits. Statistical analysis, Response Surface Methodology (RSM), and experimental validation were involved to attain the research objectives. The outcomes showed that the Traverse Speed (TS) and Plunge Depth (PD) parameters had a higher significance on Tensile Strength compared to Rotational Speed (RS). Increasing TS directly correlated with an increase in Tensile Strength, while excessive PD beyond a certain point had a negative impact. The RSM prediction results were validated through experiments, achieving a extreme TSFSW of 11.1 MPa with a low error percentage. The best values of the FSW limits were found to be RS of 1200 rpm, PD of 0.37 mm, and TS of 49.39 mm/min. The formulated model and RSM proved effective in predicting the optimal FSW limits and achieving superior TSFSW. These findings contribute to advanced FSW techniques for dissimilar thermoplastic joints, providing insights for industrial applications requiring strong and reliable joints.

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Section: Introductionmentioning

confidence: 99%

Optimization of FSW parameters on bio-inspired jigsaw suture patterns to improve the tensile strength of dissimilar thermoplastics

et al. 2023

Mater. Res. Express

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Investigations on friction stir spot welding to overcome bed size limits of material extrusion (MEX) 3D printers

Tiwary,

Padmakumar,

Malik

2023

RPJ

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Purpose Material extrusion (MEX) 3D printers suffer from an intrinsic limitation of small size of the prints due to its restricted bed dimension. On the other hand, friction stir spot welding (FSSW) is gaining wide interest from automobile, airplane, off-road equipment manufacturers and even consumer electronics. This paper aims to explore the possibility of FSSW on Acrylonitrile Butadiene Styrene/Polylactic acid 3D-printed components to overcome the bed size limitation of MEX 3D printers. Design/methodology/approach Four different tool geometries (tapered cylindrical pin with/without concavity, pinless with/without concavity) were used to produce the joints. Three critical process parameters related to FSSW (tool rotational speed, plunge depth and dwell time) and two related to 3D printing (material combination and infill percentages) were investigated and optimized using the Taguchi L27 design of experiments. The influence of each welding parameter on the shear strength was evaluated by analysis of variance. Findings Results revealed that the infill percentage, a 3D printing parameter, had the maximum effect on the joint strength. The joints displayed pull nugget, cross nugget and substrate failure morphologies. The outcome resulted in the joint efficiency reaching up to 100.3%, better than that obtained by other competitive processes for 3D-printed thermoplastics. The results, when applied to weld a UAV wing, showed good strength and integrity. Further, grafting the joints with nylon micro-particles was also investigated, resulting in a detrimental effect on the strength. Originality/value To the best of the authors’ knowledge, this is the first study to demonstrate that the welding of dissimilar 3D-printed thermoplastics with/without microparticles is possible by FSSW, whilst the process parameters have a considerable consequence on the bond strength.

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Experimental investigation of friction stir welding on aluminium AA6063

Cited by 2 publications

References 19 publications

Optimization of FSW parameters on bio-inspired jigsaw suture patterns to improve the tensile strength of dissimilar thermoplastics

Optimization of FSW parameters on bio-inspired jigsaw suture patterns to improve the tensile strength of dissimilar thermoplastics

Investigations on friction stir spot welding to overcome bed size limits of material extrusion (MEX) 3D printers

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