Studies on the effect of welding parameters for friction stir welded AA6082 reinforced with Aluminium Oxide

Ahmed, Khalique Ejaz; Nagesh, Bh.; Raju, B.S.; Drakshayani, D. N.; Holla, Abhijit Sudhindra Chethan

doi:10.1016/j.matpr.2019.10.059

Cited by 17 publications

(8 citation statements)

References 11 publications

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“…The other terms in the model with the 'Prob > F' values greater than 0.1 might be eliminated for improving the accuracy and model hierarchy. The process of removing these terms are called 'Model improvement' [6,11,17,28,29].…”

Section: Response Surface Methodologymentioning

confidence: 99%

“…The strength of welded aluminium alloy joints, for example, is determined by the grain size and precipitate. There are various methods available for selection of tool profile that can be used to control the strengthening factors and improve the mechanical properties [18,27,28,[53][54][55]. There is a formation of twinning defect, micro cracks, cleavages, fractured area as compared to similar welding of aluminium alloy but the particles formed here are fine in nature.…”

Section: Sem Analysismentioning

confidence: 99%

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Effect of welding process parameters on surface topography and mechanical properties of friction-stir-welded AA2024/AA2099 alloys

Rajkumar¹,

Singh²,

Anbarasan

et al. 2023

Mater. Res. Express

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The joining of two material with different chemical composition was a major setback for conventional methods of metal joining. The results of this welding were showing considerably great improvement in the aspects of quality of weld, amount of heat generated, uniform distribution of material, refined microstructure, enhanced tribology, materials flowing pattern, good strength with reduced internal stresses. Optimized parameters were estimated by using Desirabilty approach and Response surface methodology. Optimum parameter combination for dissimilar material welding was observed to be 913.74 rpm, 45 mm/min and 8kN. The desirability values for dissimilar welding process were 0.912 respectively. The grain enhancements were decreased in the range of WC> WT> HAZ> Parent material. The wear rate of dissimilar AA2024 and AA2099 were superior as the wear value increases from 0 to 50μm in the nugget zone. The coefficient of friction value remains constant throughout the wear experiment ranges from 0.3 to 0.55. Steady state friction values of 3N to 5N is observed when sliding distance increases. The wear loss was measured by finding the difference between initial weight and final weight and found as in the range from 0.2283 g to 0.4866 g.

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Section: Response Surface Methodologymentioning

confidence: 99%

Section: Sem Analysismentioning

confidence: 99%

Effect of welding process parameters on surface topography and mechanical properties of friction-stir-welded AA2024/AA2099 alloys

Rajkumar¹,

Singh²,

Anbarasan

et al. 2023

Mater. Res. Express

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“…e range of parameters was determined based on multiple experimental trials [24][25][26][27][28][29][30].…”

Section: Procedures Parameters and Its Levelsmentioning

confidence: 99%

Experimental Investigation of AA6063 Welded Joints Using FSW

Rajkumar¹,

Radhakrishnan²,

Rajaganapathy³

et al. 2022

Advances in Materials Science and Engineering

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The AA6063 aluminium alloy has gained widespread use in manufacturing the light-weighted structures which requires a high strength to weight ratio, and it possesses an excellent corrosive resistance in T6 heat-treated (solution heat treated and artificially aged) condition. The process of friction stir welding (FSW) is an emerging joining process of solid state that does not melt and recast the material being welded, as opposed in various other fusion welding processes, which are extensively utilized for combining the structural alloys of aluminium. The process of connecting separate components with external heat has resulted in induced stress on metals. The stir welding using friction was introduced in order to reduce the formation in residual stress during the joining process. The aluminium alloy AA6063 plates were fused utilising the friction stir welding procedure in this study. The studies were carried out using various combinations of speed in rotary condition, speed in transverse condition, and stress in axial condition. The generated joints that are welded was analysed mechanically and microstructurally. The maximum hardness of the mechanical joints produced is 93.25 HV, and the maximum tensile strength is 286.15 N/mm2. According to the results of the response surface analysis, transverse and rotary velocities possess a notable impact in hardness and durability, respectively.

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“…Avtar Singh et al investigated on the AA6061 with Zn as interlayer and concluded that the joints with Zn reinforcement have better hardness than the joints without the addition of Zn as interlayer [6]. B M Nagesh et al studied the effects of weld parameters on Al 2 O 3 reinforced AA 6082 with 3 different (5,10,15 wt%) and results showed that Al 2 O 3 has considerable impact on the tensile strength and hardness of the welded joint [7]. Hasan jafari et al investigated the residual stress distribution on AA 7075 with SiC as reinforcement.…”

Section: Introductionmentioning

confidence: 99%

Effects of SiC and Al2O3 Reinforcement of Varied Volume Fractions on Mechanical and Micro Structure Properties of Interlock FSW Dissimilar Joints AA7075-T6-AA7475-T7

Anand¹,

Sridhar²

2020

Silicon

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In this research work, the effect of SiC and Al 2 O 3 reinforcements is analyzed on the interlock dissimilar joints. The joints are welded with different wt% of SiC and Al 2 O 3 (1 to 5 wt%) placed in the groove of 0.5 mm depth between the sheets. The rotational speed of 1400 rpm, weld speed of 30 mm/s and plunge speed rate of 0.06 mm/s are selected input parameters to perform the weld. Thereafter Micro-hardness, tensile strength and microstructure properties of interlock lap joints were investigated. AA7075 T6-AA7475 T7/2wt% SiC showed maximum tensile strength and hardness of 190.51 MPa, 220 HV respectively. All the SiC reinforced FSW interlock lap joints mechanical properties showed improvement on the static properties than the joints made with Al 2 O 3 reinforcement, because of the hard silica particles and substantial increase in grain refinement that occurred in the stir zone of the reinforced welded joints. The microstructure analysis of joints revealed that reinforcements have mixed uniformly and homogenous distribution occurred in the entire weld. The fracture analysis revealed that the joints with SiC possess ductile fracture.

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Studies on the effect of welding parameters for friction stir welded AA6082 reinforced with Aluminium Oxide

Cited by 17 publications

References 11 publications

Effect of welding process parameters on surface topography and mechanical properties of friction-stir-welded AA2024/AA2099 alloys

Effect of welding process parameters on surface topography and mechanical properties of friction-stir-welded AA2024/AA2099 alloys

Experimental Investigation of AA6063 Welded Joints Using FSW

Effects of SiC and Al2O3 Reinforcement of Varied Volume Fractions on Mechanical and Micro Structure Properties of Interlock FSW Dissimilar Joints AA7075-T6-AA7475-T7

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