Fatigue Response of Aluminum 7075-T6 Joints through Inclusion of Al2O3 Particles to the Weld Nugget Zone during Friction Stir Spot Welding

2021 ◽  
Author(s):  
S. Hassanifard ◽  
A. Ghiasvand ◽  
A. Varvani-Farahani
Keyword(s):  
Spot Welding ◽  
Friction Stir Spot Welding ◽  
Weld Nugget ◽  
Nugget Zone ◽  
Friction Stir ◽  
Al2o3 Particles ◽  
Aluminum 7075

scholarly journals d EFFECT OF CYLINDRICAL PIN DEPTH ON THE TEMPERATURE DISTRIBUTION OF DISSIMILAR FRICTION STIR SPOT WELDING (FSSW)

2019 ◽  
Vol 19 (4) ◽  
pp. 357-368
Author(s):  
Kayser Aziz Ameen
Keyword(s):  
Spot Welding ◽  
Element Model ◽  
Friction Stir Spot Welding ◽  
Maximum Temperature ◽  
Thick Sheet ◽  
Nugget Zone ◽  
Friction Stir ◽  
Ansys Apdl ◽  
New Development ◽  
Welding Processes

Friction stir spot welding (FSSW) is provided a premium difference to resistance spot welding and rivet process for making the structures of aluminum sheet and it is a new development. ANSYS works is done which conducted on dissimilar material sheets of a1.1mm thick sheet of aluminum alloy (AA2024-T3) and a 0.8mm thick sheet of carbon steel (1006-AISI). A 3-D finite element model was built using ANSYS APDL to simulate the thermal and mechanical model during FSSW. The welding processes are performed using cylindrical pin with a 10mm diameter. Three tool rotational speeds are used during FSSW processes (900rpm, 1400rpm, 1800rpm). Results showed that the maximum temperature was 242.57ºC in nugget zone of dissimilar spot weld, at 15sec with a 0.4mm depth and 135.752°C at 10sec with a depth of 0.2mm.  

Study of Friction Stir Spot Welding of Steel/ Magnesium

2011 ◽  
Vol 239-242 ◽  
pp. 417-421 ◽  
Author(s):  
Xi Jing Wang ◽  
Bo Qiang Li ◽  
Chang Qing Zhang
Keyword(s):  
Spot Welding ◽  
Fracture Morphology ◽  
Friction Stir Spot Welding ◽  
Test Method ◽  
Nugget Zone ◽  
Friction Stir ◽  
Joint Fracture ◽  
Welding Spot ◽  
Orthogonal Test Method ◽  
Melting And Solidification

Dissimilar metal of Steel and Magnesium alloy by friction stir spot welding is studied. Based on using orthogonal test method to optimize the process parameters and get satisfactory joint, SEM is used to observe the features of joint, fracture morphology, and XRD is used to determine the joint phase, and the results show that: the design of rotating tool without pin is reasonable and it can form satisfactory joints without keyhole for spot welding; spot welding nugget zone on the magnesium side shows the phenomenon of melting and solidification in the range of hundreds microns, and its microstructure appears a structure of dendrites; The fracture mode of spot welding joint is a mixed mode of cleavage and dimpled rupture.

scholarly journals Revealing joining mechanism in refill friction stir spot welding of AZ31 magnesium alloy to galvanized DP600 steel

2021 ◽  
pp. 109997
Author(s):  
Banglong Fu ◽  
Junjun Shen ◽  
Uceu F.H.R. Suhuddin ◽  
Ayrton A.C. Pereira ◽  
Emad Maawad ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Spot Welding ◽  
Friction Stir Spot Welding ◽  
Az31 Magnesium Alloy ◽  
Friction Stir
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