Study of Friction Stir Spot Welding of Aluminum/Copper Dissimilar Sheets using Taguchi Approach

Khatami, Hamidreza; Azdast, Taher; Mojaver, Mehran; Hasanzadeh, Rezgar; Rafiei, Aliyeh

doi:10.5829/ije.2021.34.05b.28

Cited by 2 publications

(3 citation statements)

References 6 publications

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“…*Corresponding Author Institutional Email: m.tamjidi@velayat.ac.ir (M. Tamjidi) Moreover, FSW is a hot-shear solid-state joining process using a non-consumable rotational instrument for producing frictional heat at the welding location with no material melting. It forms a smaller temperature gradient and defect-free joints than the conventional arc procedure [6].…”

Section: Introductionmentioning

confidence: 99%

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Investigating the Effect of Considering Different Cross Section Design in Friction Stir Welded Joint Line of Dissimilar Aluminum Alloys

Tamjidi

Narooei

2023

IJE

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Using friction heat, welded joints of the Friction stir welding (FSW) process are made that are utilized to forge metal components together. Since there is no parent metal melting, several advantages are obtained by the FSW process over fusion welding. The alloys AA6XXX and AA7XXX Al are two sets of the most extensively utilized structural materials in rail transportation, automotive, and aerospace industries. The objective of present study was to investigate the effects of novel cross-sections in joint lines and further analyze the improvement in mechanical features. Due to the importance of the weld zone properties, many researchers seek to improve the mechanical behavior of the weld zone. For this, friction stir welded joint under four different new design in cross section named E1, E2, E3, E4 and one conventional cross section, E5 were conducted. Better outcomes are obtained by joints made utilizing this method based on joint quality and strength. The very good tensile features are displayed by the fabricated joints with Ultimate Tensile Strength (UTS)> 254 MPa and elongation > 7%. The highest UTS value which is occurred in E3 condition (Downward step) is 24.7% higher than required for FSW of AA6061 alloy at T6 condition in the American Welding Society (AWS) standard (186 MPa).

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Section: Introductionmentioning

confidence: 99%

“…However, its use is not proposed when the metals are under impact loads or fatigue. This joint is simply prepared since it only requires matching the plates' edges together [6]. Though, correct fitting is important for the joint's total length as with any other joint.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Effect of Considering Different Cross Section Design in Friction Stir Welded Joint Line of Dissimilar Aluminum Alloys

Tamjidi

Narooei

2023

IJE

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“…friction stir spot welding (FSSW) allows the unweldable materials such as AA2024 to be welded using these solid-state welding processes [4][5][6]. The FSSW process has similarities with FSW in which both of them use a rotating cylindrical tool equipped with a shoulder and a pin to produce weld joints but they are different in term of the tool movement that is the rotating tool in FSW moves along a weld line in the butt plane of the plates whilst the rotating tool in FSSW is operated in a stationary condition [7]. FSSW is performed by plunging the rotating tool into the sheets in the lap joint configuration.…”

Section: Introductionmentioning

confidence: 99%

Effect of Pin Geometry and Tool Rotational Speed on Microstructure and Mechanical Properties of Friction Stir Spot Welded Joints in AA2024-O Aluminum Alloy

2021

IJE

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In the present study, the effects of pin geometry and tool rotational speed on the microstructure and mechanical characteristics of the AA2024-O friction stir spot welding (FSSW) joint were investigated.Two different types of pin geometries, namely cylindrical and step pins, and three different rotational speeds of 900, 1400, and 1800 rpm were used in the friction stir spot welding joint. The microstructure observation, hardness measurements, and shear tests were conducted. Results showed that both pin geometry and rotational speed gave a remarkable effect on the microstructure and maximum shear load of the weld joints. For both pin geometries, the hook height and width of the fully bonded region (FBR) increased by increasing the rotational speed. The weld joint produced by a cylindrical pin exhibits higher values in the hook height and width of the FBR than using a step pin. Furthermore, the highest value in a maximum shear load was obtained at a rotation speed of 1400 rpm for both cylindrical and step pins. Another finding is that the maximum shear loads of FSSW joints produced with a cylindrical pin are higher than that made using a step pin.

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Study of Friction Stir Spot Welding of Aluminum/Copper Dissimilar Sheets using Taguchi Approach

Cited by 2 publications

References 6 publications

Investigating the Effect of Considering Different Cross Section Design in Friction Stir Welded Joint Line of Dissimilar Aluminum Alloys

Investigating the Effect of Considering Different Cross Section Design in Friction Stir Welded Joint Line of Dissimilar Aluminum Alloys

Effect of Pin Geometry and Tool Rotational Speed on Microstructure and Mechanical Properties of Friction Stir Spot Welded Joints in AA2024-O Aluminum Alloy

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