The joint properties of dissimilar aluminum plates joined by friction stir welding

2010 ◽  
Vol 101 (5) ◽  
pp. 692-699 ◽  
Author(s):  
Furkan Sarsilmaz ◽  
Ulaş Çaydaş ◽  
Ahmet Hasçalik ◽  
Levent Tanriover
Keyword(s):  
Friction Stir Welding ◽  
Friction Stir ◽  
Joint Properties ◽  
Aluminum Plates

Design of Joint Properties by Friction Powder Processing

2010 ◽  
Vol 638-642 ◽  
pp. 2058-2063 ◽  
Author(s):  
Koji Inada ◽  
Hidetoshi Fujii ◽  
Young Su Ji ◽  
Yoshiaki Morisada ◽  
Kiyoshi Nogi
Keyword(s):  
Friction Stir Welding ◽  
Powder Processing ◽  
Friction Stir ◽  
Probe Diameter ◽  
Shoulder Diameter ◽  
Joint Properties ◽  
First Pass ◽  
Al Powder ◽  
Pure Cu ◽  
Grain Diameter

Friction powder processing (FPP) has been developed based on the principle of friction stir welding (FSW) or friction stir processing (FSP). The FPP is a method to design the properties of the processed area by performing FSP after powder with a controlled composition is placed in the gap between two plates. The FPP experiments were performed using a tool with the shoulder diameter of 15mm and the probe diameter of 6mm. The tool traveled at 100mm/min and rotated at 1500rpm. A1050 aluminum was used as the plate. Pure Al powder (89μm average grain diameter) and pure Cu powder (106μm average grain diameter) were used as the additives. When using pure Al powder, the pure Al powder left in the base metal after the first pass is sufficiently stirred by performing the second pass and then a good joint without defects is obtained. However, more than three passes are not effective for improving the strength of the welded area. When using pure Cu powder, nanoscale Al2Cu precipitates are uniformly formed in the stir zone, and accordingly, the hardness is significantly increased.

Measurement and evaluation of joint properties in friction stir welding of ABS sheets reinforced by nanosilica addition

Measurement ◽  
2018 ◽  
Vol 127 ◽  
pp. 198-204 ◽  
Author(s):  
Reza Bagherian Azhiri ◽  
Ramin Mehdizad Tekiyeh ◽  
Ebrahim Zeynali ◽  
Masoud Ahmadnia ◽  
Farid Javidpour
Keyword(s):  
Friction Stir Welding ◽  
Friction Stir ◽  
Joint Properties ◽  
Measurement And Evaluation

scholarly journals Residual stress evaluation in friction stir welding of aluminum plates by means of acoustic emission and ultrasonic waves

2018 ◽  
Vol 46 (3) ◽  
pp. 230-237 ◽  
Author(s):  
S. Sadeghi ◽  
Zarif Karimi ◽  
M. Fotouhi ◽  
M. Hasani ◽  
Ahmadi Najafabadi ◽  
...  
Keyword(s):  
Residual Stress ◽  
Acoustic Emission ◽  
Friction Stir Welding ◽  
Ultrasonic Waves ◽  
Stress Evaluation ◽  
Friction Stir ◽  
Aluminum Plates

An overview of R&D work in friction stir welding at SMU

10.30544/381 ◽  
2006 ◽  
Vol 12 (4) ◽  
pp. 275-295 ◽  
Author(s):  
V. SOUNDARARAJAN ◽  
M. VALANT ◽  
R. KOVACEVIC
Keyword(s):  
Friction Stir Welding ◽  
Aluminum Alloys ◽  
Arc Welding ◽  
Production Costs ◽  
Friction Stir ◽  
Dissimilar Metal ◽  
Joining Technology ◽  
Joint Properties ◽  
Dissimilar Alloys ◽  
And Performance

Friction stir welding (FSW) is an innovative solid-state material joining method invented by The Welding Institute (TWI) in 1991 and has been one of the most significant joining technology developments in the last two decades. It has evolved into a process focused on joining arc weldable (5xxx and 6xxx) and unweldable (2xxx and 7xxx) aluminum alloys to a point where it can be implemented by the aerospace and automotive industries for their joining needs.Research towards the further extension of the process to join dissimilar metal combinations like Fe-Al and Al-Cu is currently underway. A few of the important advantages of FSW over conventional joining techniques include improved joint properties and performance, low-deformation of the workpieces, a significant reduction in production costs and the freeing of skilled labor for use in other tasks. Compared to the conventional arc-welding of aluminum alloys, FSW produces a smaller heat affected zone, and it also allows the successful joining of aluminum alloys, steel, titanium, and dissimilar alloys with a stronger joint.

Analysis and Correlation of Output Parameters against Input Parameters for Friction Stir Welding of Three Dissimilar Aluminum Alloy

2018 ◽  
Vol 1146 ◽  
pp. 38-43
Author(s):  
Ana Boşneag ◽  
Marius Adrian Constantin ◽  
Eduard Niţu ◽  
Cristian Ciucă
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Friction Stir Welding ◽  
Arc Welding ◽  
Welding Process ◽  
Dissimilar Materials ◽  
Friction Stir ◽  
Welding Joints ◽  
Aluminum Plates ◽  
Joining Process

Friction Stir Welding, abbreviated FSW is an innovative joining process. The FSW is a solid-state welding process with a lot of advantages comparing to the traditional arc welding, such as the following: it uses a non-consumable tool, it results of good mechanical properties, it can use dissimilar materials and it have a low environmental impact. First of all, the FSW process was developed to join similar aluminum plates, and now, the technology was developed and the FSW process is used to weld large types of materials, similar or dissimilar. In this paper it is presented an experimental study and the results of it, which includes the welding of three dissimilar aluminum alloy, with different chemical and mechanical properties. This three materials are: AA2024, AA6061 and AA7075. The welding joints and the welding process were analyzed considering: process temperature, micro-hardness, macrostructure and microstructure.

An Experimental Study of Process Parameters on Friction Stir Welded Aluminum Alloy 2219 Joint Properties

2017 ◽  
Vol 863 ◽  
pp. 3-7
Author(s):  
Koo Kil No ◽  
Joon Tae Yoo ◽  
Jong Hoon Yoon ◽  
Ho Sung Lee
Keyword(s):  
Aluminum Alloy ◽  
Friction Stir Welding ◽  
Solid State ◽  
Process Parameters ◽  
Process Condition ◽  
Welding Process ◽  
Frictional Heat ◽  
Friction Stir ◽  
Joint Properties ◽  
Aluminum Alloy 2219

Aluminum alloy 2219 is widely used in aerospace applications since it has a unique combination of good weldability and high specific strength. Furthermore, it can provide a high strength after heat treatment with superior properties in cryogenic environment so they have been widely used for cryogenic fuel tank of space launch vehicles. It is known that solid state welding like friction stir welding can improve the joint properties of this alloy. Friction stir welding is a solid state welding technology which two materials are welded together by the frictional heat due to the rotation of the tool. In this study, friction stir welding was performed on aluminum alloy 2219 sheets. The range of welding parameter is four rotation speeds from 350 to 800 rpm and six travel speeds from 120 to 420 mm/min. The results include the microstructural change after friction stir welding. The microstructure was characterized and material in the stirred zone experience sufficient deformation and heat input which cause the complete dynamic recrystallization. The present work represents the strength at each process condition and the optimum friction stir welding process parameters. The optimum weld efficiency obtained in this study was 76.5 %.

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