The Factors to Influence the Friction Stir Welding of Aluminum Casting Semi-Solid Metal Dissimilar Joint between SSM 356 and SSM 6061

2013 ◽  
Vol 415 ◽  
pp. 597-601
Author(s):  
Worapong Boonchouytan ◽  
Jaknarin Chatthong ◽  
Surasit Rawangwong ◽  
Romadorn Burapa ◽  
Prapas Muangjunburee
Keyword(s):  
Base Metal ◽  
Welding Speed ◽  
Rotation Speed ◽  
Solid Metal ◽  
Tool Geometry ◽  
Aluminum Composite ◽  
Friction Stir ◽  
Tool Rotation Speed ◽  
Semi Solid ◽  
Tool Rotation

The objective of this research is to investigate the effect of parameters on the microstructure and mechanical properties of friction stir welded butt joints of dissimilar aluminum alloy sheets between Semi-Solid Metal (SSM) 356 and 6061. The base metal of SSM 356 and 6061 was located on the advancing side and on the retreating side, respectively. The cylindrical pin was used as the welding tool geometry. Friction stir welded using different tool rotation speed (710, 1,000 and 1,400 rpm) and welding speed (80,112 and 160 mm/min). From investigated, the maximum average tensile strength of 175.40 MPa was achieved for the joint produced at tool rotation speed 1,400 rpm, welding speed 112 mm/min. Metallurgy and welding structures occurred of aluminum composite material will consist of two types of definition than the base metal.

Investigation of Dissimilar Joint between 356 and 7075 of Semi-Solid (SSM) Aluminum Alloy by Friction Stir Welding

2014 ◽  
Vol 931-932 ◽  
pp. 344-348 ◽  
Author(s):  
Worapong Boonchouytan ◽  
Jaknarin Chatthong ◽  
Surasit Rawangwong ◽  
Romadorn Romadorn ◽  
Prapas Muangjunburee
Keyword(s):  
Aluminum Alloy ◽  
Base Metal ◽  
Welding Speed ◽  
Rotation Speed ◽  
Tool Geometry ◽  
Butt Joints ◽  
Friction Stir ◽  
Tool Rotation Speed ◽  
Semi Solid ◽  
Tool Rotation

The objective of this research was to investigate the effect of parameters on the microstructure and mechanical properties of friction stir welded butt joints of dissimilar aluminum alloy sheets between Semi-Solid Metal (SSM) 356 and 7075. The base metal of SSM 356 and 7075 was located on the advancing side and the retreating side, respectively. The cylindrical pin was used as the welding tool geometry. Friction stir welded using different tool rotation speed (710, 1000 and 1400 rpm) and welding speed (80, 112 and 160 mm/min). The result indicated that the maximum average tensile strength of 205.13 MPa was achieved for the joint produced at tool rotation speed 1000 rpm, welding speed 160 mm/min. In addition, the metallurgy and welding structures of combined two types aluminium showed more definite than the base metal.

Microstructure and Mechanical Properties of Friction Stir Welded Annealed Pure Copper Joints

2013 ◽  
Vol 787 ◽  
pp. 346-351
Author(s):  
Salar Salahi ◽  
Vahid Rezazadeh ◽  
Atabak Iranizad ◽  
Ali Hosseinzadeh ◽  
Amir Safari
Keyword(s):  
Mechanical Properties ◽  
Friction Stir Welding ◽  
Welding Speed ◽  
Heat Input ◽  
Applied Load ◽  
Rotation Speed ◽  
Pure Copper ◽  
Friction Stir ◽  
Tool Rotation Speed ◽  
Tool Rotation

As a novel technique for joining materials, friction stir welding (FSW) has significant advantages over the conventional welding methods and is widely applied for joining different materials including aluminum, magnesium and copper alloys. In this research, the mechanical and microstructural characteristics of friction stir welded annealed pure copper joints were investigated. The influence of the tool rotation speed, welding speed and applied load was studied. The friction stir welding (FSW) was conducted at welding speed ranged from 30 to 70 mm/ min, rotation speed ranged from 400 to 1200rpm and applied load ranged from 1000 to 1500 kg. After welding process, tensile and Vickers hardness tests were performed. It has been found that increasing the tool rotational speed and/or reducing the welding speed increases heat input and causes grain coarsening in stir zone. High applied load refines the microstructure of NZ and increases the hardness and tensile strength of NZ. An optimum heat input condition was found to reach the best mechanical properties of the joints. The tensile characteristics of the friction stir welded tensile samples depend significantly on the tool rotation speed ,welding speed and applied load.

Dissimilar Materials Joining between SSM 356-T6 and AA6061-T651 by Friction Stir Welding

2013 ◽  
Vol 372 ◽  
pp. 478-485 ◽  
Author(s):  
Chaiyoot Meengam ◽  
Muhamad Tehyo ◽  
Prapas Muangjunburee ◽  
Jessada Wannasin
Keyword(s):  
Tensile Strength ◽  
Friction Stir Welding ◽  
Welding Speed ◽  
Rotation Speed ◽  
Stir Zone ◽  
Weld Nugget ◽  
Friction Stir ◽  
Tool Rotation Speed ◽  
Base Materials ◽  
Tool Rotation

The aim of this research is to study the influence of welding parameters on the metallurgical and mechanical properties of friction stir welded butt joints of dissimilar aluminum alloy sheets between Semi-Solid Metal (SSM) 356-T6 and AA6061-T651 by Friction Stir Welding (FSW). The base materials of SSM 356-T6 and AA6061-T651 were located on the advancing side (AS) and on the retreating side (RS) respectively. The base materials were joined under different tool rotation speeds and welding speeds. The material flows from SSM 356 and AA6061-T651 were clearly visible in the weld nugget. In addition, the mixtures of fine equiaxed grain were observed in the stir zone. The increase in tool rotation speed results in the increase in tensile strength of the joints. As for welding speed associated with various tool rotation speeds, an increase in the welding speed affected lesser the base materials tensile strength up to an optimum value; after which its effect increased. Tensile elongation was generally greater at greater tool rotation speed. An averaged maximum tensile strength of 206.3 MPa was derived for a welded specimen produced at the tool rotation speed of 2,000 rpm associated with the welding speed of 80 mm/min. In the weld nugget, higher hardness was observed in the stir zone than in the thermo-mechanically affected zone. Away from the weld nugget, hardness levels increased back to the levels of the base materials.

Study the Role of Friction Stir Welding Tilt Angle on Microstructure and Hardness

2015 ◽  
Vol 799-800 ◽  
pp. 434-438 ◽  
Author(s):  
H.A.D. Hamid ◽  
A.A. Roslee
Keyword(s):  
Mechanical Properties ◽  
Friction Stir Welding ◽  
Tilt Angle ◽  
Welding Speed ◽  
Rotation Speed ◽  
Welding Parameters ◽  
Friction Stir ◽  
Tool Rotation Speed ◽  
Tool Pin ◽  
Tool Rotation

This paper presents an investigation of research objectives on the effect of tilt angle on microstructure and mechanical properties of dissimilar aluminum alloy sheets between AA5083 and AA6061, 5mm plates by using Friction Stir Welding (FSW) process in butt joint. The base materials of AA5083 and AA6061 were located on the retreating side (RS) and advancing side (AS), respectively. The welding process and the welding parameters such as tool pin profile, tool rotation speed, welding speed and tilt angle influenced the mechanical properties of the Friction Stir Welding joints significantly. For this experiment, the Friction Stir Welding materials joined under five different tilt angles (from 0oto 4o) with 86mm/min of welding speed and 910 rpm of tool rotation speed which were set similarly. Microscopic examination on the weld samples showed significant variation in the microstructure especially in the region of heat-affected zone (HAZ), weld nugget or dynamically recrystallized zone (DXZ) and in the base metal.

scholarly journals Influence of Welding Speed on Fracture Toughness of Friction Stir Welded AA2024-T351 Joints

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1561
Author(s):  
Miodrag Milčić ◽  
Dragan Milčić ◽  
Tomaž Vuherer ◽  
Ljubica Radović ◽  
Igor Radisavljević ◽  
...  
Keyword(s):  
Friction Stir Welding ◽  
Welding Speed ◽  
Fracture Behavior ◽  
Welded Joint ◽  
Rotation Speed ◽  
High Reliability ◽  
Welding Parameters ◽  
Friction Stir ◽  
Tool Rotation Speed ◽  
Tool Rotation

In order to ensure a quality welded joint, and thus safe operation and high reliability of the welded part or structure achieved by friction stir welding, it is necessary to select the optimal welding parameters. The parameters of friction stir welding significantly affect the structure of the welded joint, and thus the mechanical properties of the welded joint. Investigation of the influence of friction stir welding parameters was performed on 6-mm thick plates of aluminum alloy AA2024 T351. The quality of the welded joint is predominantly influenced by the tool rotation speed n and the welding speed v. In this research, constant tool rotation speed was adopted n = 750 rpm, and the welding speed was varied (v = 73, 116 and 150 mm/min). By the visual method and radiographic examination, imperfections of the face and roots of the welded specimens were not found. This paper presents the performed experimental tests of the macro and microstructure of welded joints, followed by tests of micro hardness and fracture behavior of Friction Stir Welded AA2024-T351 joints. It can be concluded that the welding speed of v = 116 mm/min is favorable with regard to the fracture behavior of the analysed FSW-joint.

Study on SiС2 Nanoparticles to Aluminum Alloy Surface Performance by FSP

2016 ◽  
Vol 693 ◽  
pp. 616-620
Author(s):  
J.L. Wang ◽  
H.F. Wang ◽  
W.W. Song ◽  
Dun Wen Zuo ◽  
L. Zhu
Keyword(s):  
Aluminum Alloy ◽  
Welding Speed ◽  
Rotation Speed ◽  
Alloy Surface ◽  
Friction Stir ◽  
Tool Rotation Speed ◽  
Surface Performance ◽  
Tool Rotation ◽  
Aluminum Alloy Surface ◽  
Main Factor

SiC2 nanoparticles to aluminum alloy surface performance by the friction stir processing (FSP) was studied in this paper, the results showed that the SiC2 nanoparticles to aluminum alloy surface performance by the FSP can improve the microhardness of the aluminum alloy surface, which further showed that by the method of modification aluminum alloy surface had the resistance performances of the wear and corrosion. At the same time, by the sample microstructure pictures can see, when the tool rotation speed was 1000 r/min and the welding speed was 110 mm/min, the obtained grains were tiny and the distribution of SiC2 nanoparticles was the most uniform. When the tool rotation speed was 1000 r/min and the welding speed was 110 mm/min, the obtained grains were coarse and the distribution of SiC2 nanoparticles was the most uneven. This showed that in FSP the main factor of generated higher friction heat was the tool of rotational speed, this was the main factors to ensure grain happen recrystallization. The fastest dissipation heat of the factor was the welding speed, this was the main factor of fine grain.

Friction Stir Welding of Oxygen Free Copper and 60%Cu-40%Zn Copper Alloy

2008 ◽  
Vol 580-582 ◽  
pp. 447-450
Author(s):  
Hwa Soon Park ◽  
Byung Woo Lee ◽  
Taichi Murakami ◽  
Kazuhiro Nakata ◽  
Masao Ushio
Keyword(s):  
Mechanical Properties ◽  
Friction Stir Welding ◽  
Base Metal ◽  
Welding Speed ◽  
Copper Alloy ◽  
Rotation Speed ◽  
Friction Stir ◽  
Wide Range ◽  
Hardness Values ◽  
Tool Rotation

The mechanical properties of the friction stir welds of the oxygen free copper (OFC) and 60%Cu-40%Zn copper alloy(60/40 brass) were investigated. The defect-free welds were obtained in a relatively wide range of welding conditions; the tool rotation speed had rpm of 1000 to 2000 in the OFC and 1000 to 1500 in the 60/40 brass, with the welding speed of 500 to 2000 mm/min. The SZ hardness values of the OFC welds were almost the same or slightly lower than those of the base metal. However, the SZ hardness values of the 60/40 brass in all welding conditions were much higher than those of the base metal. The SZ hardness values of both metals increase with a decrease in heat input. The tensile properties of the all-SZ showed relative correspondence to the variation of the SZ hardness values.

scholarly journals The influence of welding parameters on macrostructure and mechanical properties of Sc-modified AA2519-T62 FSW joints

2020 ◽  
Vol 7 ◽  
pp. 28
Author(s):  
Robert Kosturek ◽  
Lucjan Śnieżek ◽  
Janusz Torzewski ◽  
Marcin Wachowski
Keyword(s):  
Mechanical Properties ◽  
Welding Speed ◽  
Fatigue Testing ◽  
Rotation Speed ◽  
Low Cycle Fatigue ◽  
Welding Parameters ◽  
Cycle Fatigue ◽  
Friction Stir ◽  
Tool Rotation Speed ◽  
Tool Rotation

In this investigation, a 5 mm thick extrusion of AA2519-T62 alloy has been welded using friction stir welding method. The various sets of process parameters have been involved within the range of 400–1200 rpm tool rotation speed and 100–800 mm/min welding speed. Selected joints have been subjected to the macrostructure analysis, microhardness measurements, tensile and low cycle fatigue testing (at ε = 0.3%), and fractography analysis. It has been stated that imperfection-free macrostructure is obtained for welds produced with lowest welding speed: 100 mm/min and tool rotation speed within the range of 400–800 rpm. The highest joint efficiency (85%) has been obtained for the sample characterized by the presence of voids in the upper part of the stir zone. Considering macrostructure analysis and established mechanical properties of the joints, it may be concluded that the best set of welding parameters for AA2519-T62 is within the range of 600–800 rpm tool rotation speed with welding speed of 100 mm/min for used MX Triflute tool.

scholarly journals Mechanical and Abrasive Wear Properties of Friction Stir Welded Joints of Aluminum Alloy AA6061-T6 with/Without Nickel Coating

2020 ◽  
Vol 70 (2) ◽  
pp. 21-36
Author(s):  
Shailja Bahuguna ◽  
Pradyumn K Arya ◽  
Vinay Kumar Patel
Keyword(s):  
Abrasive Wear ◽  
Welding Speed ◽  
Welded Joints ◽  
Rotation Speed ◽  
Nickel Coating ◽  
Precipitate Size ◽  
Wear Properties ◽  
Friction Stir ◽  
Tool Rotation Speed ◽  
Tool Rotation

AbstractThe purpose of this work is to examine the microstructure, mechanical and sand abrasive properties of friction stir welded joints of aluminium alloy AA6061-T6 with and without nickel coating. A total eighteen samples, six samples of AA6061-T6 plates, six samples of 10 μm thick Ni coated AA6061-T6 plates and six samples of 15 μm thick Ni coated AA6061-T6 plates were friction stir welded by using different tool rotation speed (710 rpm, 1000 rpm, 1400 rpm) and different welding speed (28 mm/min, 56 mm/min). The joints manufactured using 1400 rpm tool rotation speed and 56 mm/min welding speed generated the highest tensile strength and percent elongation with joint efficiency of 69.05% with 15 μm Ni-coated AA6061-T6 plates and joints manufactured from 10 μm Ni-coated AA6061-T6 plates using 1000 rpm tool rotation speed and 28 mm/min welding speed generated the highest impact energy and higher hardness in NZ compared to the other joints. The 15 μm Ni-coated AA6061-T6 plates exhibited better abrasive wear resistant properties than the 10 15 μm Ni-coated plates. Microstructure investigation showed the precipitate size variations and their distributions and after friction stir welding, these precipitates became slightly coarser in the HAZ but finer in the nugget region.

scholarly journals PENGARUH TOOL ROTATION SPEED TERHADAP SIFAT MEKANIK SAMBUNGAN ALUMINIUM PADUAN 6061-T6 PADA PROSES FRICTION STIR WELDING

2019 ◽  
Vol 25 (3) ◽  
Author(s):  
Tarmizi Tarmizi ◽  
Riki Indrawan ◽  
Irfan Irfan
Keyword(s):  
Friction Stir Welding ◽  
Rotation Speed ◽  
Friction Stir ◽  
Tool Rotation Speed ◽  
Tool Rotation

PENGARUH TOOL ROTATION SPEED TERHADAP SIFAT MEKANIK SAMBUNGAN ALUMINIUM PADUAN 6061 T6 PADA PROSES FRICTION STIR WELDING. Pengelasan aduk tekan merupakan proses pengelasan yang baru dikembangkan pada tahun 1991, hingga saat ini berbagai penelitian terus dilakukan untuk menemukan parameter yang dapat menghasilkan sambungan las yang optimum sebagai alternatif proses pengelasan fusi yang masih memiliki beberapa kekurangan. Penelitian ini bertujuan untuk mengetahui pengaruh kecepatan putar tool yang menjadi salah satu parameter penting dalam friction stir welding pada pelat aluminium paduan 6061-T6 dengan tebal 6 mm terhadap sifat mekanik sambungan las, dengan variasi kecepatan putar yang digunakan 910 rpm, 1175 rpm, 1555 rpm, 1700 rpm dan 2000 rpm untuk mendapatkan parameter yang optimum. Berdasarkan penelitian yang telah dilakukan didapatkan hasil bahwa sambungan las dengan kecepatan putaran 910 rpm, 1175 rpm dan 1555 rpm tidak terdapat cacat dan memenuhi kriteria sambungan las berdasarkan standar AWS D17.3 sedangkan sambungan las yang memiliki sifat mekanik yang paling optimum yaitu sambungan las dengan kecepatan putar tool 910 rpm karena pengkasaran butir dan larutnya presipitat tidak terlalu signifikan dibandingkan dengan kecepatan putaran lainnya.Kata kunci: Pengelasan aduk tekan, pengelasan fusi, kecepatan putar, tool, aluminium paduan 6061-T6.

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