Academia.edu no longer supports Internet Explorer.
To browse Academia.edu and the wider internet faster and more securely, please take a few seconds to upgrade your browser.
2013, IASET
The influence of tool rotational speed and welding speed during friction stir welding is studied in the case of aluminum plates with 6 mm thickness. When a tool rotational speed of 1000 rpm is applied with welding speed of 1.5 mm/sec, an optimum tensile strength was obtained in this investigation. Also, it has been found that the microhardness increases with welding speed and decreases as the rotational speed increased.
Archives of Civil and Mechanical Engineering
Effect of material location and tool rotational speed on microstructure and tensile strength of dissimilar friction stir welded aluminum alloys2012 •
Aluminium alloys have a wide range of application in many industries like aerospace, defence, marine etc. Friction Stir Welding (FSW) can produce low cost and high quality joints of aluminium alloys because it does not need consumable filler materials and can eliminate some welding defects such as crack and porosity. The most important contributing factors for mechanical properties are Tool rotational speed and Tool feed followed by Shoulder diameter and Pin depth. In this paper a little concentration is paid to study the effect of rotational speed and feed rate on properties of FSW weldments. Aluminium plates of Standard thickness (6 mm) were butt welded on single side by friction stir welding (FSW) process under various traversing speeds and rotational speeds. The effects on mechanical properties like hardness and tensile strength of the welded region were studied. Reduction of hardness by an amount of 7.8% at higher welding speed might have increased the tensile strength by an amount of 45%.
Jurnal Kejuruteraan
Influence of Welding parameters on Mechanical property during Friction Stir Welded joint on Aluminium Alloys: A Review2023 •
Archive of Mechanical Engineering
Effect of Tool Geometry and Welding Speed on Mechanical Properties and Microstructure of Friction Stir Welded Joints of Aluminium Alloys AA6082-T62014 •
Friction stir welding is a solid state innovative joining technique, widely being used for joining aluminium alloys in aerospace, marine automotive and many other applications of commercial importance. The welding parameters and tool pin profile play a major role in deciding the weld quality. In this paper, an attempt has been made to understand the influences of welding speed and pin profile of the tool on friction stir welded joints of AA6082-T6 alloy. Three different tool pin profiles (tapered cylindrical four flutes, triangular and hexagonal) have been used to fabricate the joints at different welding speeds in the range of 30 to 74 mm/min. Microhardness (HV) and tensile tests performed at room temperature were used to evaluate the mechanical properties of the joints. In order to analyse the microstructural evolution of the material, the weld’s cross-sections were observed optically and SEM observations were made of the fracture surfaces. From this investigation it is found that...
Friction stir welding (FSW) is a widely used solid state joining process for soft materials such as aluminium alloys because it avoids many of the common problems of fusion welding. It has many benefits when applied to welding of aluminum alloys. FSW process parameters such as welding speed, rotational speed and tool geometry play vital roles in the weld quality. The aim of this research is to investigate the effects of different welding speeds, rotational speeds and tool pin profile on the weld quality of a AA6061 aluminum alloy. A friction stir welding tool consists of rotating shoulder and pin that heats the working piece by friction and moves a softened alloy around it to form a joint. In this research work the effect of the tool shape and welding parameters (rotating speed and welding speed) on the mechanical properties of an aluminium plates will be investigated experimentally. The induced heat during the welding process played the main role in the mechanical and appearance of the joints, which is related to the welding parameters.
Friction Stir Welding (FSW) was carried out on commercially available Aluminum Alloy 6063T-6 and AA 6061 plates, with dimensions of 150×75×6 mm. in my project we have selected dissimilar materials, especially on aluminum alloy 6061 and 6063-T6, Design of experiment (DOE) was applied to determine the most important factors which influence Ultimate Tensile Strength (UTS) of AA 6063 T-6 and AA 6061 joints produced by Friction Stir Welding (FSW). Effect of two factors which include tool rotational speed, welding speed. By Taguchi method using L9 orthogonal array, the optimum of process parameters was determined. GRA analysis was carried out to determine the percentage contribution of each factor on Tensile Strength. Particular emphasis has been given to the Effect of welding speed and tool rotation speed on welded work piece and study on mechanical properties.
International Journal of Research in Engineering and Innovation (IJREI)
Mechanical characterization of friction stir welded joint of dissimilar aluminum alloys AA6061and AA70502021 •
Friction stir welding (FSW) process has gained attention in recent years because of its advantages over the conventional fusion welding process. These advantages include the absence of heat formation in the affected zone and the absence of large distortion, porosity, oxidation, and cracking. Experimental investigations are necessary to understand the physical behavior that causes the high tensile strength of welded joints of different metals and alloys. This paper focuses on the effect of welding parameters on microstructure and mechanical properties of welded joint by friction stir welding. In this work, the fabrication of AA6061 and AA7050 was successfully done by friction stir welding, the confidence interval has shown that tensile strength and hardness increased with increasing tool rotation. The maximum tensile strength and % strain at SZ was observed 269 MPa, and 21.5 HV at TRS of 1000 rpm, and TS of 60 mm/min, and the maximum hardness at SZ was observed 135 HV at TRS of 750 rpm, and TS of 80 mm/min. The grains size in the SZ at higher tool rotation (1000 rpm) was much finer than the lower tool rotation (800 rpm). The FSWed portion at 500 rpm shows the big and deep dimples, while equiaxed fine dimples were observed at TRS of 1000 rpm.
Al-Nahrain Journal for Engineering Sciences
Effect of Pin Shape and Rotational Speed on the Mechanical Behaviour and Microstructures of Friction Stir Spot Welding of Aa6061 Aluminum Alloy2017 •
Friction stir spot welding (FSSW) is a modern solid-state joining process able to weld similar and dissimilar overlap joints in different classes of materials and is widely being considered for automotive industry. In this work, the mechanical behavior ) i.e. tensile shear tests, Microhardness(, and microstructure of friction stir spot welded joints were studied for AA6061-T6 aluminum alloy sheets with thickness of 1.6 mm. Series of FSSW experiments were conducted using vertical CNC milling machine type "C-tek". FSSW is carried out at different pin profiles (cylindrical, taper, and triangular) and tool rotational typically speeds, i.e. 800, 1000, 1200 and 1400 rpm. Based on the welding experiments conducted in this study, the results show that sheets welded by triangular pin tool have highest tensile shear load, of 3.2 kN, followed by welds with cylindrical pin, while welds made using taper pin has the tensile shear load 2.1 kN at optimum speed of 1200 rpm. Also the pin sh...
— Fusion welding of aluminum and its alloys tends to degrade the mechanical strength at the weld joint area due to high thermal diffusivity and high melting point. Friction Stir Welding (FSW) is the best alternative for joining of these materials against fusion joining. FSW is an emerging solid state joining process in which the material that is being welded does not melt and recast. The main objective of this research is to use FSW for joining of 5 mm thick AA5083-H321 and AA6061 T6 aluminum alloys using taper cylindrical threaded tool pin profile and scrolling on shoulder surface. The microstructure and mechanical characterization of dissimilar friction stir welded AA5083-H321 and AA6061-T6 aluminum alloys were studied. Four different welding speeds (40, 63, 80 and 100 mm/min) were used to weld the dissimilar alloys at constant tool rotational speed of 1120 rpm, tilt angle 2.5 0. The effect of welding speed on metallurgical and mechanical properties was analyzed. It is found that the welding speed of 80 mm/min produces good mechanical and metallurgical properties than other welding speeds. The observed results were correlated with the fracture features and microstructure. The fracture mode was observed to be a ductile fibrous fracture. Keywords— AA5083-H321 and AA6061-T6 aluminum alloys, friction stir welding, welding speed, tensile strength, microstructure, Fractography.
Tehnicki vjesnik - Technical Gazette
Influence of kinematic factors of friction stir welding on the characteristics of welded joints of forged plates made of EN AW 7049 A aluminium alloy2017 •
St. Stephan in Wien. Die "Herzogswerkstatt". Ed. B. Schedl & F. Zehetner, Wien / Köln 2022, pp. 173-187.
Inhabited Architecture. Das Bischofs- und das Singertor an St. Stephan zu Wien und die Figurenportale des 14. JahrhundertsJournal of Language Education and Educational Technology (JLEET)
An Analysis of Politeness in Teacher's Utterances in an English Classroom2021 •
Journal of Sistan and Baluchistan Studies
ANALYSIS OF THE CONDITION OF THE SHAHR-DRAZ SITE IN THE DAMAN RIVER BASIN BASED ON POTTERY FINDINGS FROM SURFACE SURVEY AND SOUNDING TO DETERMINE THE CORE ZONE2019 •
Majlesi Journal of Electrical Engineering
Event-based Controller Design for Networked Control Systems with Time-varying Random Delays2020 •
arXiv (Cornell University)
When does an active bath behave as an equilibrium one?2023 •
Redmarka. Revista de Marketing Aplicado
Tendencias globales de desarrollo del turismo gastronómico aplicadas al caso de Argentina1970 •
1984 •
2013 •
Theory Into Practice
Languaging among Latinx siblings in immigrant homes: Implications for teaching literacy2019 •