Torque and force perspectives on particle size and its effect on mechanical property of friction stir welded AA6092/17.5SiCp-T6 composite joints

Acharya, Uttam; Roy, Barnik Saha; Saha, Sushanta

doi:10.1016/j.jmapro.2019.01.009

Cited by 27 publications

(9 citation statements)

References 17 publications

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“…They found there is a decrease in the average particle size of SiC in NZ from 5.4 μm to 4.2 μm. The pattern of variation in reinforced particle distribution in different zones was also reported by Acharya et al 57 and observed the size and number of particle vary with tool rotational speed Figure 6. SEM showing different orientations of silicon carbide (SiC) whiskers.…”

Section: Microstructuresupporting

confidence: 76%

“…Particle size distribution in BM and NZ, TMAZ at various TRS is shown in Figure 11. 57 It was found that as soon as rotational speeds shift from 1000 rpm to 1500 rpm, the percentage of fine particles increase progressively. Also, at the same speed, more finer particles were found in NZ when compared to TMAZ.…”

Section: Macrostructure and Microstructure Of Fs Welded Amc Jointsmentioning

confidence: 99%

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Joining of aluminium matrix composites using friction stir welding: A review

Mir

Khan

Siddiquee

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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Aluminium matrix composites are one of the most important classes of materials and have become a major focus of attention in aerospace, aeronautical, defense, and automotive industries. Aluminium matrix composites when compared to conventional alloys offer various promising properties like excellent strength-to-weight ratio, higher stiffness, lower coefficient of thermal expansion, better dimensional stability, and tribological behavior. The properties of aluminium matrix composites are highly influenced by the appropriate selection of metal matrix, processing routes, and reinforcement. Various ceramic particles (oxides, carbides, nitrides, borides, etc.) are used as reinforcements for aluminium matrix composites. Significantly different properties may be obtained using various reinforced particles and matrix material, which makes it difficult for the traditional fusion welding techniques to meet the joining requirements of these composites and is restricted to certain grades of materials. Solid-state welding process offers greater advantages over the conventional fusion welding. As a solid-state joining process, friction stir welding has proven to be a better and promising technique for joining aluminium matrix composites. However, it is still subjected to various challenges to join aluminium matrix composites even with considerable progress has been made in recent years. The current review provides an overview of state-of-the-art of friction stir welding of aluminium matrix composite materials. Specific attention and critical assessment have been given to weldability, the macrostructure and microstructure of aluminium matrix composite joints, mechanical properties of joints, fractography, and the wear of friction stir welding tool during welding of aluminium matrix composite. Furthermore, the various existing challenges of friction stir welding of aluminium matrix composites are summarized and the recommendations for future research are proposed.

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Section: Microstructuresupporting

confidence: 76%

Section: Macrostructure and Microstructure Of Fs Welded Amc Jointsmentioning

confidence: 99%

Joining of aluminium matrix composites using friction stir welding: A review

Mir

Khan

Siddiquee

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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show abstract

“…However, X force showed the opposite trend. Acharya et al 16 reported that the X force and Z force first slightly decreased and then abruptly increase due to the tool wear at higher rpm on varying TRS while the spindle torque decreased with an increase in TRS. Liu et al 17 showed the effect of TRS on microstructure and mechanical properties of AA2060-T8 joint at constant welding speed.…”

Section: Introductionmentioning

confidence: 99%

Influence of tool rotational speed on Microstructure and Mechanical Properties of Al-Li Alloy using Friction Stir Welding

Kumar

Katiyar

Acharya

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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Al-Li alloy is one of the suitable materials to be used in the aerospace industry due to its unique physical, mechanical, fatigue and corrosion resistance properties. The present study investigates the effect of rotational tool speed (TRS) on force and torque and its consequences on heat input, temperature, microstructure, and mechanical properties of a 5 mm thick 2050-T84 Al-Li alloy plates in square butt joint configuration. The investigation reveals defect-free welds at TRS ranging from 600 rpm to 1400 rpm. The grain size at nugget zone (NZ) and thermo-mechanically affected zone (TMAZ) increases (10.59 µm-16.79 µm; TMAZ-AS; 12.67µm-18.96 µm and TMAZ-RS; 12.22 µm-17.98 µm) with an increase in TRS (600–1400 rpm). The high ultimate tensile strength (UTS-410MPa) and % elongation (11.15%) was observed at 1400 rpm. With the help of scanning electron microscope (SEM) analysis of tensile fracture samples, the ductile nature of tensile fracture is observed.

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“…On the other hand, a similar observation can be made for X-force other than a decrease at the TTS of 4 mm/s. The decrease in the force exerted by material to the pin (X-force) indicates the ideal state of welding where it happens in a balanced mode of stick-slip phenomenon [27,29,30].…”

Section: Torque and Force Analysismentioning

confidence: 99%

“…It has been concluded from the study that torque and forces increase with an increase in TTS and accomplish superior value by taper threaded tool with low fluctuations. Acharya et al [27] revealed the effect of torque and force on particle size in microstructure and mechanical properties of AA6092/17.5 SiCp-T6 MMC joint at varying TRS. It has been observed that the size of the reinforcement particles in weldment is affected mainly by force and torque involved in the welding.…”

Section: Introductionmentioning

confidence: 99%

Effect of traverse speed on microstructure and mechanical properties of friction-stir-welded third-generation Al–Li alloy

Kumar

Acharya

Sethi

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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The aim of the study is to investigate the consequences of tool traverse speed on force and torque distribution of friction-stirwelded third-generation Al-Cu-Li alloy joints. The microstructure and corresponding mechanical properties of the joints are investigated on force and torque perspective. Thus, the contribution of the present work lies in establishing the relation between traverse speed and mechanical properties of the AA2050-T84 joint. Four welds have been considered at varying traverse speeds from 1 to 4 mm/s at constant tool rotational speed and tool tilt angle of 1400 rpm and 2°, respectively. A tool of H13 steel having a tapered screw-threaded pin profile was used. The investigation reveals that with the increase in traverse speed, longitudinal force (X-force), vertically downward force (Z-force) and spindle torque also increase. The grain size of the nugget zone reduces from 19.84 to 14.86 µm as traverse speed increases. It has been found that the mechanical strength of the joint increases as the traverse speed increases. The Vickers microhardness value increases from 115 HV 0.1 to 131 HV 0.1 in the nugget zone as traverse speed increases from 1 to 4 mm/s. The maximum tensile strength, % elongation and joint efficiency are 403.2 MPa, 7.2% and 75.5% for traverse speed of 4 mm/s. The tensile fracture samples are analyzed by scanning electron microscope and reveal ductile mode of fracture.

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Torque and force perspectives on particle size and its effect on mechanical property of friction stir welded AA6092/17.5SiCp-T6 composite joints

Cited by 27 publications

References 17 publications

Joining of aluminium matrix composites using friction stir welding: A review

Joining of aluminium matrix composites using friction stir welding: A review

Influence of tool rotational speed on Microstructure and Mechanical Properties of Al-Li Alloy using Friction Stir Welding

Effect of traverse speed on microstructure and mechanical properties of friction-stir-welded third-generation Al–Li alloy

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