scholarly journals Studies on Friction Stir Welding of AA 2024 and AA 6061 Dissimilar Metals

2014 ◽  
Vol 75 ◽  
pp. 145-149 ◽  
Author(s):  
P. Sadeesh ◽  
M. Venkatesh Kannan ◽  
V. Rajkumar ◽  
P. Avinash ◽  
N. Arivazhagan ◽  
...  
Keyword(s):  
Friction Stir Welding ◽  
Dissimilar Metals ◽  
Friction Stir ◽  
Aa 2024

Multiaxial Mechanical Strength of AA-2024-T3 Aluminium Alloy Sheets Joined by Friction Stir Welding Processes

2009 ◽  
Vol 83-86 ◽  
pp. 1243-1250 ◽  
Author(s):  
R.L.L.P. Cerveira ◽  
G. F. Batalha
Keyword(s):  
Friction Stir Welding ◽  
Base Material ◽  
Short Review ◽  
Multiaxial Loading ◽  
Angle Variation ◽  
Friction Stir ◽  
Aa 2024 ◽  
Aeronautical Industry ◽  
Welding Processes ◽  
Joining Process

The aim is to analyze a junction produced by a Friction Stir Welding (FSW) joining process under multiaxial loading, employing a modified Arcan test that allows an angle variation of the loading in order to evaluate the failure of the FSW weldment as compared to the base material. A short review of the earlier studies and relevant theories about the FSW processes and fracture modes I and II under multiaxial loading are presented and were experimentally evaluated for an AA2024-T3 aluminum alloy sheets (t = 1.6 mm) processed by FSW. The results obtained can serve as a basis to compare the junctions made using FSW and conventional joint methods such as rivets (very common practice in the aeronautical industry).

Material Flow Behavior during Friction Stir Welding of Copper and Steel

2011 ◽  
Vol 138-139 ◽  
pp. 842-847 ◽  
Author(s):  
Chun Ping Huang ◽  
Wen Liang Chen ◽  
Li Ming Ke ◽  
Huang Lu
Keyword(s):  
Friction Stir Welding ◽  
Material Flow ◽  
Flow Behavior ◽  
Dissimilar Metals ◽  
Screw Thread ◽  
Friction Stir ◽  
Different Shapes ◽  
Welding Joints ◽  
Flow Morphology ◽  
Main Factor

The joining of dissimilar metals, T2 copper and Q235 mild steel was carried out by friction stir welding. The material flow of different shapes of the probe and different forms of welding joints were studied, the material flow behavior on different locations from the probe was also analyzed. The experimental results showed that the screw thread in probe is the main factor in driving material flow along the thickness direction of the weld during FSW of copper and steel, the flow morphology of the weld is significantly different with vary forms of welding joints, and the material flow on different locations from the probe are quite different from each other. Instantaneous cavity will form at the upper of the weld with the use of left screw thread probe during FSW, and if not promptly and adequate padding, it is prone to appear hole-type defects.

scholarly journals Experimental Investigation of Friction stir Welding Using Hybrid Alloys : A Review

2021 ◽  
pp. 308-313
Author(s):  
A. J Amroliya ◽  
Dr. D. B Jani ◽  
Dr. R. K Shukla
Keyword(s):  
Friction Stir Welding ◽  
Solid State ◽  
Dissimilar Metals ◽  
Research Personnel ◽  
Friction Stir ◽  
Vertical Milling ◽  
Working Parameters ◽  
Fsw Parameters ◽  
Tool Pin ◽  
Solid State Joining

Friction stir welding is a solid state joining process which is used to join metals and alloys having low weldability .Study about the effect of FSW parameters like tool rpm, tool transverse speed and tool pin profile. A vertical milling head is used to produce FSW joints. In this study, solid state joining technology of friction stir welding (FSW) was carried out for Al and Mg butt joints and other dissimilar metals. This review article thoroughly highlights the influence of FSW working parameters on microstructure, mechanical properties. This effort not only sets eminent outcomes of the preceding research personnel but also proposes forthcoming guidelines for FSW of dissimilar metals.

Friction Stir Welding between Dissimilar Metalswith Circular Weld Line

2014 ◽  
Vol 622-623 ◽  
pp. 501-507
Author(s):  
Masahiro Fukumoto ◽  
Hiroki Mizushima ◽  
Toshiaki Yasui
Keyword(s):  
Tensile Strength ◽  
Friction Stir Welding ◽  
High Performance ◽  
Weld Line ◽  
Hybrid Structure ◽  
Light Metal ◽  
Al Alloy ◽  
Dissimilar Metals ◽  
Bottom Part ◽  
Friction Stir

Hybrid metallic structure, which is composed of aluminum alloy as a representative of light metal and steel as that of high strength metal, has been paid attention remarkably in these days, especially in the transportation vehicle industry from the energy saving viewpoint. To perform the hybrid structure, friction stir welding FSW has been recognized to be an effective way for the welding between dissimilar metals, like between steel and Al alloy. Based on our previous findings on the butt welding between dissimilar metals with straight weld line, welding between dissimilar metals with circular weld line has been tried to open a new application field of FSW. The objective of this research is to get a fundamental finding on the welding between dissimilar metals with circular weld line and to clarify the effect of material character of Al alloy and tool design on the FSW between dissimilar metals. Typical results obtained in this study are summarized as follows: 1) Macroscopic defects often observed at the bottom part of the welding in case of ADC12 material. It indicates that insufficient stirring was given in the stirring zone due to the higher thermo-mechanical property of ADC12. 2) Tensile strength of the specimen welded with scroll shoulder tool was 266 MPa, while that with flat shoulder tool was 161 MPa. Tensile strength of the weld joint was improved by a factor of 1.65 by introducing the scroll onto the tool shoulder with normal thread probe. 3) High performance defect free ADC12/S45C weld structure with circular weld line could be fabricated by the tool with combination of scroll shoulder and thread probe.

Effect of Tool Rotation Speed and Feed Rate on Friction Stir Welding of 1100 Aluminum Alloy to Carbon Steel

2012 ◽  
Vol 445 ◽  
pp. 741-746 ◽  
Author(s):  
M. Habibnia ◽  
M. Shakeri ◽  
S. Nourouzi ◽  
Namdar Karimi
Keyword(s):  
Friction Stir Welding ◽  
Carbon Steel ◽  
Feed Rate ◽  
Rotation Speed ◽  
Butt Joint ◽  
Al Alloy ◽  
Dissimilar Metals ◽  
Friction Stir ◽  
Tool Rotation Speed ◽  
Tool Rotation

To achieve a defect-free butt joint of dissimilar metals by friction stir welding procedure, there are some major parameters, such as tool material and geometry, tool rotational speed, feed rate and tilt angel. This research is focused on dissimilar metals welding, namely 1100 Al alloy and 1045 carbon steel. In this paper, the effect of tool rotation speed and feed rate are experimentally investigated on surface appearance, microstructure and micro hardness of the friction stir welded plates. Optimum values of tool rotation speed and feed rate have been achieved experimentally by the quality of the butt joint.

The Rotational Extrusion Alloying

2013 ◽  
Vol 664 ◽  
pp. 521-524
Author(s):  
Wei Ping Xu ◽  
Li Ming Ke ◽  
Li Xing
Keyword(s):  
Heat Treatment ◽  
Friction Stir Welding ◽  
Low Temperature ◽  
High Speed ◽  
Welding Process ◽  
Stable Phase ◽  
Dissimilar Metals ◽  
Friction Stir ◽  
Pole Figures ◽  
Extrusion Technology

The Rotating Extrusion Alloying (REA) is a process which combined friction stir welding process and extrusion technology. In the REA process, dissimilar metals are mixed, cracked, and subjected to high speed, severe pressing deformation, and therefore rapidly alloy at a low temperature. The result shows that REA technology can be alloyed Al-Ti material. Its phases are mainly composed of Al and Al3Ti, which are distributed more evenly in the aluminum. After heat treatment, its phases’ types and pole figures have no significant change, but there is a trend of transition to the non-equilibrium stable phase. Small-angle grain boundaries decrease or even disappear.

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