Research of Heat Power in Friction Stir Spot Welding

Statsenko, V.; Sukhorada, A.E.

doi:10.4028/www.scientific.net/kem.806.81

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…To receive the data about the distribution of the friction moment, specific and full heat input across the working surface radius of the real tool the following measurements should be done [5]. The tool, 20 mm in diameter, is parted in the concentric areas (rings), 2 mm in width, with the radius from r 1 =1 mm to r 5 =9 mm, than the optimal tool rotation speed n opt = 600, 800, 1200, 1600 rpm (ω=62,8-167 s -1 ) was chosen.…”

Section: Results Of the Experiments And The Measurementsmentioning

confidence: 99%

“…The desk is fixed on the ball thrust bearing moving part, its still part is fixed on the base. During the working tube rotation and its compressing with the certain effort towards the working plate its friction moment is defined by the F force, which is measured by the electronical dynamometer and the rod length l [5].…”

Section: The Description Of the Technical Solution And The Methods Of...mentioning

confidence: 99%

“…While the friction moment is being changed, the effort of the working tube compression is set, that is how the stable temperature scheme is provided along the contacting area in any of the regimes. All the over measurements are the same as in [5].…”

Section: The Description Of the Technical Solution And The Methods Of...mentioning

confidence: 99%

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Research of Heat Input in Friction Stir Welding

Statsenko

Sukhorada

Bernvskaya

2019

MSF

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Nowadays the most perspective, high-tech and productive process is friction stir welding. The most important part of this technology is to determine the temperature of the material in the stir zone. This parameter is easily counted by the amount of the heat input, put in the welding zone. We made experimental researches about the relation of the heat input, therotation speed and thediameter of the working tool. For that purpose an experimental scheme was chosen, which models a welding material (aluminum alloy AMg5) as an experimental tube 20 mm in diameter. The tool (shear steel P6M5) is modeled as a working plate. Measurements of the frictional moments depending on the rotation speed of the experimental working tube during the constant temperature are made on the prepared stand. By the experimental data the specific heat input and the heat power were counted on every concentric ring, 2 mm in width, in the end of the working tool, 20 mm in diameter. Also, the sum of the heat power for the whole tool during various rotation speed terms was counted too. On the stand throughout the experiment were determined all the thermal conductivity heat losses along the rod, which the experimental tube was pinned on, all the working plate heat losses through the gasket towards the working desk and the convection from the surface of the rotating experimental tube to the environment. According the data, any of these losses is from 3 to 10 percent. This is shown in the heat input counting.

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Section: Results Of the Experiments And The Measurementsmentioning

confidence: 99%

Section: The Description Of the Technical Solution And The Methods Of...mentioning

confidence: 99%

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Research of Heat Input in Friction Stir Welding

Statsenko

Sukhorada

Bernvskaya

2019

MSF

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Study of friction stir welding effects on the microstructure & mechanical properties of AA3003 pipes

Sharma,

Khan,

Siddiquee

et al. 2024

Phys. Scr.

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In the present study, similar Aluminum (AA3003) alloy pipes with a thickness of 5 mm were friction stir welded using a high-speed steel (HSS) tool with a cylindrical pin profile. Welding was done at three different rotational speeds and three traverse speeds corresponding to pipes of three different diameters. Six combinations of rotational speed and traverse speed were used to observe the effect of energy input on the properties, specifically tensile strength and microhardness, as well as grain size of the resulting microstructure. This systematic variation in welding parameters was designed to assess how changes in energy input influence both the mechanical performance and microstructural attributes of the welded joints. The tensile test results indicated that an ultimate tensile strength (UTS) of 84% relative to the base metal was achieved at a rotational speed of 900 rotations per minute(rpm) and a traverse speed of 131.94 mm/min. The impact energy corresponding to these parameters was found to be 38% more than base metal which is a remarkable contribution. This combination of welding parameters facilitated optimal material flow and bonding, resulting in improved tensile properties of the welded joint. Additionally, the tensile results showed a consistent pattern in the tensile failure of the welded samples, where the joint failure occurred at the location with the lowest hardness in the welded region. This correlation highlights the critical influence of hardness distribution on the structural integrity of the welds, indicating that areas with reduced hardness are more prone to failure under tensile loading of FSWed joints.

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Friction stir welding and processing of pipes: a status report on joining, materials, and industry applications

Gangil,

Siddiquee,

Yadav

et al. 2024

WJE

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Purpose The purpose of this paper is to compile a comprehensive status report on pipes/piping networks across different industrial sectors, along with specifications of materials and sizes, and showcase welding avenues. It further extends to highlight the promising friction stir welding as a single solid-state pipe welding procedure. This paper will enable all piping, welding and friction stir welding stakeholders to identify scope for their engagement in a single window. Design/methodology/approach The paper is a review paper, and it is mainly structured around sections on materials, sizes and standards for pipes in different sectors and the current welding practice for joining pipe and pipe connections; on the process and principle of friction stir welding (FSW) for pipes; identification of main welding process parameters for the FSW of pipes; effects of process parameters; and a well-carved-out concluding summary. Findings A well-carved-out concluding summary of extracts from thoroughly studied research is presented in a structured way in which the avenues for the engagement of FSW are identified. Research limitations/implications The implications of the research are far-reaching. The FSW is currently expanding very fast in the welding of flat surfaces and has evolved into a vast number of variants because of its advantages and versatility. The application of FSW is coming up late but catching up fast, and as a late starter, the outcomes of such a review paper may support stake holders to expand the application of this process from pipe welding to pipe manufacturing, cladding and other high-end applications. Because the process is inherently inclined towards automation, its throughput rate is high and it does not need any consumables, the ultimate benefit can be passed on to the industry in terms of financial gains. Originality/value To the best of the authors’ knowledge, this is the only review exclusively for the friction stir welding of pipes with a well-organized piping specification detailed about industrial sectors. The current pipe welding practice in each sector has been presented, and the avenues for engaging FSW have been highlighted. The FSW pipe process parameters are characteristically distinguished from the conventional FSW, and the effects of the process parameters have been presented. The summary is concise yet comprehensive and organized in a structured manner.

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Research of Heat Power in Friction Stir Spot Welding

Cited by 3 publications

References 2 publications

Research of Heat Input in Friction Stir Welding

Research of Heat Input in Friction Stir Welding

Study of friction stir welding effects on the microstructure & mechanical properties of AA3003 pipes

Friction stir welding and processing of pipes: a status report on joining, materials, and industry applications

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