Investigation on Mechanical Properties of Friction Stir Welding of 2 mm Thick Aluminium Alloy Sheet

2018 ◽  
Author(s):  
A.D. Anggono ◽  
B. Sugito ◽  
A. Hariyanto ◽  
Suranto
Keyword(s):  
Mechanical Properties ◽  
Friction Stir Welding ◽  
Aluminium Alloy ◽  
Alloy Sheet ◽  
Friction Stir

Behaviour of oxides during friction stir welding of aluminium alloy and their effect on its mechanical properties

2002 ◽  
Vol 16 (4) ◽  
pp. 266-275 ◽  
Author(s):  
H Okamura ◽  
K Aota ◽  
M Sakamoto ◽  
M Ezumi ◽  
K Ikeuchi
Keyword(s):  
Mechanical Properties ◽  
Friction Stir Welding ◽  
Aluminium Alloy ◽  
Friction Stir

scholarly journals Influences of Pin Shape on a High Rotation Speed Friction Stir Welding Joint of a 6061-T6 Aluminum Alloy Sheet

Metals ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 987 ◽  
Author(s):  
Yang Zhou ◽  
Shujin Chen ◽  
Jiayou Wang ◽  
Penghao Wang ◽  
Jingyu Xia
Keyword(s):  
Friction Stir Welding ◽  
Aluminium Alloy ◽  
Rotation Speed ◽  
Alloy Sheet ◽  
Aluminum Alloy Sheet ◽  
Welding Quality ◽  
Nugget Zone ◽  
Friction Stir ◽  
High Rotation Speed ◽  
S Curve

In order to explore the influences of different pins on the weld based on the specialty of the aluminium alloy sheet welding, three kinds of pins were chosen to perform high rotation speed friction stir welding on a 1 mm thick 6061-T6 aluminium alloy in this study. The microstructure and mechanical properties of the joints were analysed at the same time. When the rotation speed was 11,000 rpm and the welding speed was 300 mm/min, more sufficient stirring and a better joint (the tensile strength reaches 87.2% of the base metal) can be obtained with the pin design of a quadrangular frustum pyramid. The pattern of the weld cross section was a “flat T” and no obvious “S curve” was found in nugget zone (NZ). Heat affected zone (HAZ) and thermo-mechanically affected zone (TMAZ) were also narrow. The results demonstrate that the proportion of low angle boundaries in each area of the weld is lower than that of traditional Friction Stir Welding (FSW). The grain size of NZ is significantly refined and the proportion of low angle boundaries is only 20.1%, which have improved the welding quality.

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