Result analysis of friction stir welding of aluminum 5083-H112 using taper threaded cylinder pin with variation in rotational and translational speed

2020 ◽  
Author(s):  
Slameto Wiryolukito ◽  
Johanes P. Wijaya
Keyword(s):  
Friction Stir Welding ◽  
Friction Stir ◽  
Result Analysis ◽  
Aluminum 5083 ◽  
Translational Speed

scholarly journals A Multi Scale Strategy for Simulation of Microstructural Evolutions in Friction Stir Welding of Duplex Titanium Alloy

2019 ◽  
Vol 38 (2019) ◽  
pp. 485-497 ◽  
Author(s):  
Z. Zhang ◽  
Z. J. Tan
Keyword(s):  
Friction Stir Welding ◽  
Volume Fraction ◽  
Average Length ◽  
Transformation Model ◽  
Scale Model ◽  
Welding Temperature ◽  
Rotating Speed ◽  
Friction Stir ◽  
Multi Scale ◽  
Translational Speed

AbstractA fully coupled thermo-mechanical model is established to simulate the temperature variations and the material deformations in friction stir welding (FSW) of Ti-6Al-4V. The extracted data are used for further simulation on microstructural evolutions. A multi scale model, which consists of the grain growth model in grain cluster scale and the phase transformation model in one grain scale, is proposed. The nuclei of α and β phases, the recrystallizations and the grain growths are systematically investigated. Comparisons with experimental data and experimental observations can validate the newly proposed microstructural evolution model for Ti-6Al-4V. Results indicate that the volume fractions of α and β phases can be directly determined by the cooling rates in FSW process. With the increase of the rotating speed, the volume fraction of α phase is increased and β phase decreased due to the increase of welding temperature. With the decrease of the translational speed, the volume fraction of α phase gets bigger and β phase smaller. The acicular α grain can be generated on the β grain boundaries and grows along <1 1 0> direction on β substrate. The average length of α grain can be increased with longer cooling time and decreased with lower rotating speed or higher translational speed.

scholarly journals A Feasibility Study on the Three-Dimensional Friction Stir Welding of Aluminum 5083-O Thin Plate

2016 ◽  
Vol 57 (6) ◽  
pp. 988-994 ◽  
Author(s):  
Young-Gon Kim ◽  
In-Ju Kim ◽  
Young-Pyo Kim ◽  
Sung-Min Joo
Keyword(s):  
Friction Stir Welding ◽  
Thin Plate ◽  
Feasibility Study ◽  
Three Dimensional ◽  
Friction Stir ◽  
Aluminum 5083

Microstructural and Mechanical Behaviour Evaluation of Mg-Al-Zn Alloy Friction Stir Welded Joint

2020 ◽  
Vol 17 (3) ◽  
pp. 8150-8159
Author(s):  
Kulwant Singh ◽  
Gurbhinder Singh ◽  
Harmeet Singh
Keyword(s):  
Heat Treatment ◽  
Friction Stir Welding ◽  
Magnesium Alloys ◽  
Mechanical Performance ◽  
Fuel Efficiency ◽  
Research Work ◽  
Grain Structure ◽  
Tensile Fracture ◽  
Friction Stir ◽  
The Impact

The weight reduction concept is most effective to reduce the emissions of greenhouse gases from vehicles, which also improves fuel efficiency. Amongst lightweight materials, magnesium alloys are attractive to the automotive sector as a structural material. Welding feasibility of magnesium alloys acts as an influential role in its usage for lightweight prospects. Friction stir welding (FSW) is an appropriate technique as compared to other welding techniques to join magnesium alloys. Field of friction stir welding is emerging in the current scenario. The friction stir welding technique has been selected to weld AZ91 magnesium alloys in the current research work. The microstructure and mechanical characteristics of the produced FSW butt joints have been investigated. Further, the influence of post welding heat treatment (at 260 °C for 1 h) on these properties has also been examined. Post welding heat treatment (PWHT) resulted in the improvement of the grain structure of weld zones which affected the mechanical performance of the joints. After heat treatment, the tensile strength and elongation of the joint increased by 12.6 % and 31.9 % respectively. It is proven that after PWHT, the microhardness of the stir zone reduced and a comparatively smoothened microhardness profile of the FSW joint obtained. No considerable variation in the location of the tensile fracture was witnessed after PWHT. The results show that the impact toughness of the weld joints further decreases after post welding heat treatment.

Friction stir welding

2010 ◽  
Author(s):  
Daniela Lohwasser ◽  
Zhan Chen
Keyword(s):  
Friction Stir Welding ◽  
Friction Stir
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