Gotowe bibliografie tematyczne / Friction stir welding of aluminum alloys

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Gotowa bibliografia na temat „Friction stir welding of aluminum alloys”

Autor: Grafiati

Data publikacji: 6 września 2023

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Artykuły w czasopismach na temat "Friction stir welding of aluminum alloys"

Ravendra, Jujavarapu Sai, i Palukuri Veerendra. "Studies on Effect of Tool Pin Profiles and Welding Parameters on the Friction Stir Welding of Dissimilar Aluminium Alloys AA5052 & AA6063". International Journal for Research in Applied Science and Engineering Technology 10, nr 4 (30.04.2022): 3077–89. http://dx.doi.org/10.22214/ijraset.2022.41986.

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Abstract: Friction stir welding (FSW) is a solid-state joining process that uses the frictional heat generated by the rotating tool to soften the metals to form the joint. It is an effective technique for joining dissimilar aluminum alloys and finds its application in various fields such as aerospace and automotive industries. FSW process is energy efficient and environment friendly process. This FSW can produce joints with higher mechanical and metallurgical properties. Formerly, FSW was adopted for low melting metals like aluminum alloys. The various FSW parameters play a vital role in determining the quality of the welded joint. The parameters included in the study of different tool pin profiles (circular, pentagon and taper). FEA analysis will be performed for friction stir welding of Aluminum alloy 5052 and AA6063 at different tool pin profiles using ANSYS. This paper mainly focuses on studying the effect of different tool pin profiles on the microstructure and mechanical properties of the dissimilar AA5052 and AA6063 aluminum alloy joints. The weld quality characteristics like microstructure, micro-hardness, and tensile properties of the joints are analyzed and presented for three different tool pin profiles. It is observed from the result that the joint fabricated using three different tool pin profiles exhibits the better mechanical properties when compared to other joints. Index Terms: Friction stir welding, Aluminium alloys, AA5052, AA6063, Dissimilar welding.

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Zhi-hong, Fu, He Di-qiu i Wang Hong. "Friction stir welding of aluminum alloys". Journal of Wuhan University of Technology-Mater. Sci. Ed. 19, nr 1 (marzec 2004): 61–64. http://dx.doi.org/10.1007/bf02838366.

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Lee, Ho Sung, Jong Hoon Yoon, Joon Tae Yoo i Kyung Ju Min. "Microstructure and Mechanical Properties of Friction Stir Welded AA2195-T0". Materials Science Forum 857 (maj 2016): 266–70. http://dx.doi.org/10.4028/www.scientific.net/msf.857.266.

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Aluminum-copper-lithium alloy is a light weight metal that has been used as substitute for conventional aerospace aluminum alloys. With addition of Li element, it has lower density but higher strength. However these aluminum alloys are hard to weld by conventional fusion welding, since they often produce porosities and cracking in the weld zone. It is known that solid state welding like friction stir welding is appropriate for joining of this alloy. In this study, friction stir welding was performed on AA2195 sheets, in butt joint configuration in order to understand effects of process parameters on microstructure and mechanical properties in the weld zone. The results include the microstructural change after friction stir welding with electron microscopic analysis of precipitates.

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Essa, Meshal, i Fahad Salem Alhajri. "A Survey of the Parameters of the Friction Stir Welding Process of Aluminum Alloys 6xxx Series". Engineering International 9, nr 1 (1.06.2021): 51–60. http://dx.doi.org/10.18034/ei.v9i1.548.

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Friction stir welding is a modern innovation in the welding processes technology, there are ‎several ways in which this technology has to be investigated in order to refine and make it ‎economically responsible. Aluminum alloys have strong mechanical properties when they are ‎welded by using the Friction Stir welding. Therefore, certain parameters of the welding ‎process need to be examined to achieve the required mechanical properties. In this project, a ‎literature survey has been performed about the friction stir welding process and its parameters ‎for 6xxx series aluminum alloys‎.

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Cojocaru, Radu, Lia Boțilă, Cristian Ciucă, Horia Florin Dascau i Victor Verbiţchi. "Friction Stir Lap Welding of Light Alloy Sheets". Advanced Materials Research 814 (wrzesień 2013): 187–92. http://dx.doi.org/10.4028/www.scientific.net/amr.814.187.

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Aluminum alloys are widely used in aerospace, automotive, railway and shipbuilding industry, as materials having remarkable properties for applications in these fields. For this reason, in recent years the interest for friction stir lap welding of sheets from these alloys increased.The behaviour of welding materials from the plastic and mechanic viewpoint are different in case of friction stir lap welding compared to friction stir butt welding.The welding tools for friction stir lap welding can have different configurations and sizes compared to butt welding. The used welding parameters must be reconsidered in order to obtain a proper flow of material for obtaining a friction stir lap welded joint.In addition, it is very important how to prepare the sheets surfaces that come into contact and their placement (relative to each other).The paper presents considerations regarding friction stir lap welding, with examples/concrete results obtained in welding of similar and dissimilar light alloys (alloys of aluminum, magnesium and titanium). It also presents data on the characteristics of obtained welded joints, related with particularities of friction stir lap welding.The obtained results showed that light alloys sheets used in various industrial fields can be joined with respect of basis conditions specific for the friction stir lap welding process.

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Dube, Nitesh, Prakash Rai, Kuldeep Giri i Himanshu Kumar Sharma. "Optimisation of Process Parameters Friction Stir Welding". International Journal of Advance Research and Innovation 4, nr 1 (2016): 168–77. http://dx.doi.org/10.51976/ijari.411626.

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Friction stir welding (FSW) is a relatively new solid-state joining process. This joining technique is energy efficient, environment friendly, and versatile. In particular, it can be used to join high-strength aerospace aluminum alloys and other metallic alloys that are hard to weld by conventional fusion welding. The FSW parameters such as tool rotational speed, welding speed, welding tool shoulder diameter, and welded plate thickness play a major role in determining the strength of the joints. Aluminium alloys have gathered wide acceptance in the fabrication of light weight structures requiring a high strength and good corrosion resistance.

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Nemenenok, B. M., I. V. Rafalski, P. E. ,. Lushchik i A. A. Radchenko. "Methods for producing permanent joints of aluminum and titanium alloys". Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY), nr 1 (7.04.2020): 56–64. http://dx.doi.org/10.21122/1683-6065-2020-1-56-64.

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The results of the analysis of theoretical and experimental studies of methods for producing permanent joints of dissimilar metals and alloys are presented, as well as the advantages, implementation problems and prospects of using friction stir welding to join titanium and aluminum alloys. It is noted that most studies focus on friction stir welding of light metals such as aluminum, copper, magnesium and their alloys. Despite the great scientific and practical interest, the friction stir welding processes of alloys and metal-matrix composite materials based on aluminum and titanium have been studied less thoroughly and require additional attention.Given the variety and complexity of friction stir welding, the lack of a correct assessment of the reactivity, properties and design features of aluminum and titanium alloys can lead to a number of problems associated with a change in the structure of materials and defects in the welding zone, which is accompanied by the inevitable deterioration of the mechanical characteristics of the finished joints.

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Lee, Ho Sung, Ye Rim Lee i Kyung Ju Min. "Influence of Tool Rotational Speed on the Mechanical Properties of Friction Stir Welded Al-Cu-Li Alloy". Materials Science Forum 857 (maj 2016): 228–31. http://dx.doi.org/10.4028/www.scientific.net/msf.857.228.

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Aluminum-Lithium alloys have been found to exhibit superior mechanical properties as compared to the conventional aerospace aluminum alloys in terms of high strength, high modulus, low density, good corrosion resistance and fracture toughness at cryogenic temperatures. Even though they do not form low-melting eutectics during fusion welding, there are still problems like porosity, solidification cracking, and loss of lithium. This is why solid state friction stir welding is important in this alloy. It is known that using Al-Cu-Li alloy and friction stir welding to super lightweight external tank for space shuttle, significant weight reduction has been achieved. The objective of this paper is to investigate the effect of friction stir tool rotation speed on mechanical and microstructural properties of Al-Cu-Li alloy. The plates were joined with friction stir welding process using different tool rotation speeds (300-800 rpm) and welding speeds (120-420 mm/min), which are the two prime welding parameters in this process.

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El-Hafez, Hassan Abd, i Abla El-Megharbel. "Friction Stir Welding of Dissimilar Aluminum Alloys". World Journal of Engineering and Technology 06, nr 02 (2018): 408–19. http://dx.doi.org/10.4236/wjet.2018.62025.

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Song, Sang-Woo, Nam-Kyu Kim i Chung-Yun Kang. "Dissimilar Friction Stir Welding of Aluminum Alloys". Journal of the Korean Welding and Joining Society 27, nr 5 (31.10.2009): 10–15. http://dx.doi.org/10.5781/kwjs.2009.27.5.010.

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Rozprawy doktorskie na temat "Friction stir welding of aluminum alloys"

Martinez, Nelson Y. "Friction Stir Welding of Precipitation Strengthened Aluminum 7449 Alloys". Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc862775/.

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The Al-Zn-Mg-Cu (7XXX series) alloys are amongst the strongest aluminum available. However, they are considered unweldable with conventional fusion techniques due to the negative effects that arise with conventional welding, including hydrogen porosity, hot cracking, and stress corrosion cracking. For this reason, friction stir welding has emerged as the preferred technique to weld 7XXX series alloys. Aluminum 7449 is one of the highest strength 7XXX series aluminum alloy. This is due to its higher zinc content, which leads to a higher volume fraction of eta' precipitates. It is typically used in a slight overaged condition since it exhibits better corrosion resistance. In this work, the welds of friction stir welded aluminum 7449 were studied extensively. Specific focus was placed in the heat affected zone (HAZ) and nugget. Thermocouples were used in the heat affected zone for three different depths to obtain thermal profiles as well as cooling/heating profiles. Vicker microhardness testing, transmission electron microscope (TEM), and differential scanning calorimeter (DSC) were used to characterize the welds. Two different tempers of the alloy were used, a low overaged temper and a high overaged temper. A thorough comparison of the two different tempers was done. It was found that highly overaged aluminum 7449 tempers show better properties for friction stir welding. A heat gradient along with a high conducting plate (Cu) used at the bottom of the run, resulted in welds with two separate microstructures in the nugget. Due to the microstructure at the bottom of the nugget, higher strength than the base metal is observed. Furthermore, the effects of natural aging and artificial aging were studied to understand re-precipitation. Large improvements in strength are observed after natural aging throughout the welds, including improvements in the HAZ.

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Reese, Gregory A. "Dissimilar Friction Stir Welding Between Magnesium and Aluminum Alloys". Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc955097/.

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Joining two dissimilar metals, specifically Mg and Al alloys, using conventional welding techniques is extraordinarily challenging. Even when these alloys are able to be joined, the weld is littered with defects such as cracks, cavities, and wormholes. The focus of this project was to use friction stir welding to create a defect-free joint between Al 2139 and Mg WE43. The stir tool used in this project, made of H13 tool steel, is of fixed design. The design included an 11 mm scrolled and concave shoulder in addition to a 6 mm length pin comprised of two tapering, threaded re-entrant flutes that promoted and amplified material flow. Upon completion of this project an improved experimental setup process was created as well as successful welds between the two alloys. These successful joints, albeit containing defects, lead to the conclusion that the tool used in project was ill fit to join the Al and Mg alloy plates. This was primarily due to its conical shaped pin instead of the more traditional cylindrical shaped pins. As a result of this aggressive pin design, there was a lack of heat generation towards the bottom of the pin even at higher (800-1000 rpm) rotation speeds. This lack of heat generation prohibited the material from reaching plastic deformation thus preventing the needed material flow to form the defect free joint.

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Sidhar, Harpreet. "Friction Stir Welding of High Strength Precipitation Strengthened Aluminum Alloys". Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc862787/.

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Rising demand for improved fuel economy and structural efficiency are the key factors for use of aluminum alloys for light weighting in aerospace industries. Precipitation strengthened 2XXX and 7XXX aluminum alloys are the key aluminum alloys used extensively in aerospace industry. Welding and joining is the critical step in manufacturing of integrated structures. Joining of precipitation strengthened aluminum alloys using conventional fusion welding techniques is difficult and rather undesirable in as it produces dendritic microstructure and porosities which can undermine the structural integrity of weldments. Friction stir welding, invented in 1991, is a solid state joining technique inherently benefitted to reduces the possibility of common defects associated with fusion based welding techniques. Weldability of various 2XXX and 7XXX aluminum alloys via friction stir welding was investigated. Microstructural and mechanical property evolution during welding and after post weld heat treatment was studied using experimental techniques such as transmission electron microscopy, differential scanning calorimetry, hardness testing, and tensile testing. Various factors such as peak welding temperature, cooling rate, external cooling methods (thermal management) which affects the strength of the weldment were studied. Post weld heat treatment of AL-Mg-Li alloy produced joint as strong as the parent material. Modified post weld heat treatment in case of welding of Al-Zn-Mg alloy also resulted in near 100% joint efficiency whereas the maximum weld strength achieved in case of welds of Al-Cu-Li alloys was around 80-85% of parent material strength. Low dislocation density and high nucleation barrier for the precipitates was observed to be responsible for relatively low strength recovery in Al-Cu-Li alloys as compared to Al-Mg-Li and Al-Zn-Mg alloys.

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Peel, Matthew J. "Friction-stir welding of dissimilar aluminium alloys". Thesis, University of Manchester, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.488339.

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Jamison, Jay Dee. "Modeling of thermal and mechanical effects during friction stir processing of nickel-aluminum bronze". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Sep%5FJamison.pdf.

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Pew, Jefferson W. "A torque-based weld power model for friction stir welding /". Diss., CLICK HERE for online access, 2006. http://contentdm.lib.byu.edu/ETD/image/etd1649.pdf.

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Georgeou, Zacharias. "Analysis of material flow around a retractable pin in a friction stir weld". Thesis, Port Elizabeth Technikon, 2003. http://hdl.handle.net/10948/196.

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Friction StirWelding (FSW) has been researched for a number of years since its inception in 1991. The work thus far has been based on understanding the material and thermal flow using the standard fixed pin tool. The keyhole resulting during tool extraction in a FSW weld, is a disadvantage and a current limiting factor. Eliminating this effect from a weld using a movable pin tools would make FSW more commercially viable. This dissertation focuses on the design of a novel retractable pin tool, and highlights the problems encountered during the welding of Aluminum plates, Al2024 and Al5083. Previously studied techniques of material and thermal flow were used, to investigate the effect of the tool during extraction in a FSW weld. A prototype retractable tool was designed using parametric and axiomatic design theory, and implementing a pneumatic muscle actuation system. The resulting problems in the calibration of the retractable pin tool and the resulting welds are presented, these results confirming previous studies. The movable pin produced discrepancies the heat generation around the shoulder during a FSW weld. The failure of this tool to produce a reasonable weld showed that previous ideas into the workings of a retractable pin tool requires further investigation, furthermore a fresh approach to the interpretation and understanding of the FSW weld process needs consideration.

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Stephen, Michael George. "Development and analysis of a friction stir spot welding process for aluminium". Thesis, Nelson Mandela Metropolitan University, 2005. http://hdl.handle.net/10948/1351.

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Friction Stir Spot Welding (FSSW) has been developed from the conventional Friction Stir Welding (FSW) process, developed at The Welding Institute (TWI). FSSWs have been done without the keyhole being eliminated. Elimination of the keyhole would result in the process being more commercially viable. This dissertation focuses on an attempt of eliminating the keyhole using a retractable pin tool as well as a comparison of the weld integrity of a FSSW to that of a conventional Resistance Spot Weld (RSW). Welds were conducted on aluminium alloy 6063 T4. Comparisons between different weld procedures were done. Further analysis of the weld integrity between FSSW and RSW were conducted, comparing tensile strengths, microstructure and hardness. For the above welding procedure to take place, the current retractable pin tool, patented by PE Technikon, was redesigned. Problems associated during the welding process and the results obtained are documented. Reasons for the keyhole not being eliminated as well as recommendations for future work in the attempt to remove the keyhole are discussed.

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Oyedemi, Kayode. "Increasing the gap tolerance in friction stir welded joints of AA6082-T6". Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1012325.

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This research project was conducted to increase weld gap tolerance in Friction Stir Welding (FSW) of 8 mm thick aluminum alloy 6082 – T6. Investigation was done on I-STIR PDS platform and a Johnford milling machine. The research project involved tool-pin design with varying re-entrant features and varying parameters as a method of weld gap closing to produce successful welds. Direction of spindle rotation and dwell time were established as part of a preliminary study. Clockwise spindle rotation with 20 seconds dwell time allows sufficient plasticity and improved material flow which assisted in achieving welds with prior 30 percent weld gap of the plate thickness. Final welds were made using three rotational speeds and feed rates with sufficient plunging to prevent root defects. Analysis of the results were detailed which include vickers microhardness test, tensile test and metallographic observation to access the suitability of the weld structure. From the set of tool-pins designed, the flare tool-pin gave a well-defined weld nugget with improved stirring at the weld root. Also, with a concave shoulder, right hand threaded tool-pin and counterclockwise flutes undergoing a clockwise spindle rotation, plasticized material flow was upward which was beneficial in reducing the amount of plate thinning. The right hand thread counter clockwise flute with a flute machined in the foot exhibited superior tensile strength for welds containing 30 percent weld gap.

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Mondal, Barnali. "Process-Structure-Property Relationships in Friction Stir Welded Precipitation Strengthened Aluminum Alloys". Thesis, University of North Texas, 2019. https://digital.library.unt.edu/ark:/67531/metadc1505263/.

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Through a series of carefully designed experiments, characterization and some modeling tools, this work is aimed at studying the role of thermal profiles on different microstructural zones and associated properties like strength and corrosion through a variation of weld parameters, thermal boundary conditions and material temper. Two different alloys belonging to the Al-Cu and Al-Cu-Li system in different temper conditions- peak aged (T8) and annealed (O) were used. A 3D-thermal pseudo mechanical (TPM) model is developed for the FSW process using heat transfer module in COMSOL Multiphysics and is based on a heat source wherein the temperature dependent yield shear stress is used for the heat generation. The precipitation and coarsening model is based on the Kampmann and Wagner theoretical framework and accounts for the competition between the various nucleation sites for both metastable and equilibrium precipitates. The model predicts different precipitate mean radius and volume fraction for the various zones in the friction stir welded material. A model for the yield strength is developed which considers contributions from different strengthening mechanisms. The predictions of the each models have been verified against experimental data and literature. At constant advance per rotation, the peak temperature decreases with a decrease in traverse speed and increases with an increase in tool rotation. Weld properties were significantly affected by choice of thermal boundary conditions in terms of backing plate diffusivity. Weld conditions with a higher peak temperature and high strain rate results in more dissolution of precipitates and fragmentation of constituent particles resulting in a better corrosion behavior for the weld nugget. For a peak aged temper of 2XXX alloys, the weld nugget experiences dissolution of strengthening precipitates resulting in a lower strength and the Heat affected zone (HAZ) experiences coarsening of precipitates. For an annealed material, both the weld nugget and HAZ experiences dissolution of precipitates with an increase in strength in the weld nugget.

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Książki na temat "Friction stir welding of aluminum alloys"

Danford, Merlin D. A study of friction stir welded 2195 Al-Li alloy by the scanning reference electrode technique. [Marshall Space Flight Center, Ala.]: National Aeronautics and Space Administration, Marshall Space Flight Center, 1998.

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K, Kokula Krishna Hari, red. Investigations of Analysis and Fabrication of butt joint using friction stir welding of A319 Aluminum Alloy: ICIEMS 2014. India: Association of Scientists, Developers and Faculties, 2014.

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J, Ding R., George C. Marshall Space Flight Center. i United States. National Aeronautics and Space Administration., red. A study of friction stir welded 2195 Al-Li alloy by the scanning reference electrode technique. [Huntsville, Ala.]: National Aeronautics and Space Administration, Marshall Space Flight Center, 1998.

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Hafley, Robert A. Fatigue crack growth rate test results for Al-Li 2195 parent metal, variable polarity, plasma arc welds and friction stir welds. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 2000.

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Lee, J. A. Friction stir welding for aluminum metal matrix composites (MMC's): (MSFC Center director's discretionary fund final report, project no. 98-09). [Marshall Space Flight Center], Ala: National Aeronautics and Space Administration, Marshall Space Flight Center, 1999.

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Friction Stir Welding: Dissimilar Aluminium Alloys. Taylor & Francis Group, 2017.

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Siddiquee, Arshad Noor, Zahid Akhtar Khan i Noor Zaman Khan. Friction Stir Welding. Taylor & Francis Group, 2020.

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Siddiquee, Arshad Noor, Zahid Akhtar Khan i Noor Zaman Khan. Friction Stir Welding: Dissimilar Aluminium Alloys. Taylor & Francis Group, 2017.

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Siddiquee, Arshad Noor, Zahid Akhtar Khan i Noor Zaman Khan. Friction Stir Welding: Dissimilar Aluminium Alloys. Taylor & Francis Group, 2017.

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Części książek na temat "Friction stir welding of aluminum alloys"

Mishra, Rajiv Sharan, Partha Sarathi De i Nilesh Kumar. "FSW of Aluminum Alloys". W Friction Stir Welding and Processing, 109–48. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07043-8_5.

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Witthar, Karin, Jeremy Brown i Dwight Burford. "Swept FSSW in Aluminum Alloys through Sealants and Surface Treatments". W Friction Stir Welding and Processing VI, 417–24. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118062302.ch48.

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Fehrenbacher, Axel, Edward G. Cole, Michael R. Zinn, Nicola J. Ferrier, Neil A. Duffie i Frank E. Pfefferkorn. "Towards Process Control of Friction Stir Welding for Different Aluminum Alloys". W Friction Stir Welding and Processing VI, 381–88. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118062302.ch44.

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Rao, H. M., J. B. Jordon, W. Yuan, B. Ghaffari, X. Su, A. K. Khosrovaneh i Y. L. Lee. "Fatigue Behavior of Friction Stir Linear Welded Dissimilar Aluminum-to-Magnesium Alloys". W Friction Stir Welding and Processing VIII, 145–52. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119093343.ch16.

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Rao, H. M., J. B. Jordon, W. Yuan, B. Ghaffari, X. Su, A. K. Khosrovaneh i Y. L. Lee. "Fatigue Behavior of Friction Stir Linear Welded Dissimilar Aluminum-to-Magnesium Alloys". W Friction Stir Welding and Processing VIII, 145–52. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-48173-9_16.

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Mubiayi, Mukuna Patrick, Esther Titilayo Akinlabi i Mamookho Elizabeth Makhatha. "Friction Stir Welding and Friction Stir Spot Welding of Aluminium/Copper Alloys". W Structural Integrity, 17–65. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-92750-3_2.

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Goetze, Paul, Mateusz Kopyściański, Carter Hamilton i Stanisław Dymek. "Comparison of Dissimilar Aluminum Alloys Joined by Friction Stir Welding with Conventional and Bobbin Tools". W Friction Stir Welding and Processing X, 3–12. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-05752-7_1.

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Hamilton, C., M. Kopyściański, O. Senkov i S. Dymek. "A Coupled Thermal/Material Flow Model of Friction Stir Welding Applied to Sc-Modified Aluminum Alloys". W Friction Stir Welding and Processing VII, 329–38. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-48108-1_34.

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Franke, Daniel J., Michael R. Zinn i Frank E. Pfefferkorn. "Intermittent Flow of Material and Force-Based Defect Detection During Friction Stir Welding of Aluminum Alloys". W Friction Stir Welding and Processing X, 149–60. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-05752-7_14.

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Hamilton, C., M. Kopyściański, O. Senkov i S. Dymek. "A Coupled Thermal/Material Flow Model of Friction Stir Welding Applied to Sc-Modified Aluminum Alloys". W Friction Stir Welding and Processing VII, 329–38. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118658345.ch34.

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Streszczenia konferencji na temat "Friction stir welding of aluminum alloys"

Rathod, M. J., i T. R. Karale. "Friction Stir Welding of Aluminium-Alloys". W International Conference on Automotive Materials & Manufacturing 2014. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2014. http://dx.doi.org/10.4271/2014-28-0015.

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"FRICTION STIR WELDING OF ALUMINUM ALLOYS 6XXX SERIES: A REVIEW". W International Conference on Advancements and Recent Innovations in Mechanical, Production and Industrial Engineering. ELK Asia Pacific Journals, 2015. http://dx.doi.org/10.16962/elkapj/si.arimpie-2015.46.

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Pandey, Ankit Kumar, i Vishnu Narayanan. "Investigation of defect formation during friction stir welding of aluminum alloys". W PROCEEDINGS OF ADVANCED MATERIAL, ENGINEERING & TECHNOLOGY. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0024507.

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Buglioni, Luciano, Leonardo Tufaro i Hernán Svoboda. "CFD Numerical Model Development for Friction Stir Welding of Aluminum Alloys". W XXXVI Iberian Latin American Congress on Computational Methods in Engineering. Rio de Janeiro, Brazil: ABMEC Brazilian Association of Computational Methods in Engineering, 2015. http://dx.doi.org/10.20906/cps/cilamce2015-0284.

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Hadi, Mustafa Mahdi, Akeel Dhahir Subhi i Mohanned Mohammed Hussein. "Friction stir welding of similar 5xxx aluminum alloys: A review study". W CONFERENCE ON MATHEMATICAL SCIENCES AND APPLICATIONS IN ENGINEERING: CMSAE-2021. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0148186.

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Tavares, S. M. O., P. C. M. Azevedo, B. Emi´lio, V. Richter-Trummer, M. A. V. Figueiredo, P. Vilac¸a i P. M. S. T. de Castro. "Friction Stir Welding of T-Joints in Dissimilar Aluminium Alloys". W ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-67522.

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The T-joint is a common joint type frequently used in transport industries because of the importance of increasing the inertia and strength of thin skins and shells without significant weight increase. This shape can be obtained by different processes as extruding, riveting, welding or others. However, the low weldability of some aluminum alloys, when using traditional welding processes, is an obstacle to the possible full benefit of such reinforced structures. The friction stir welding (FSW) process is suitable to join most aluminum alloys and should be considered as a feasible alternative to the other processes used to produce this type of geometry. This paper reports the results obtained concerning FSW T-joints with a new configuration. These joints simulate a typical reinforcement composed by two materials in order to optimize the damage tolerance. The skin is made of a 6xxx series alloy, and the reinforcement is made of a 7xxx series alloy. Mechanical properties were obtained and micro-structural analyses of the weld zone were performed, and the results were compared with those obtained in base materials and butt joints.

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Able, Nicholas, i Frank Pfefferkorn. "Laser-Assisted Friction Stir Lap Welding of Aluminum". W ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems. ASMEDC, 2005. http://dx.doi.org/10.1115/ht2005-72829.

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The objective of this research is to determine the effects of laser preheating on friction stir lap welding. Laser preheating of the top surface of the material during friction stir lap welding is used to reduce the welding forces and torque, thereby reducing the stiffness requirements on the clamping and FSW tool. Preheating also has the potential to enable higher welding speeds and reduced tool wear particularly when applied to welding of higher melting temperature alloys. A transient three-dimensional finite element heat transfer model of the workpieces was developed to predict the influence of preheating on the temperature distribution and heat flux within the workpieces. The model accounts for conduction in the workpieces, contact resistance between them, laser absorption, frictional heat generation under the FSW tool shoulder, and losses to the surroundings. Predicted temperatures at discrete locations were compared with thermocouple measurements and found to be in good agreement. The model showed that the energy deposited by the laser in the top plate does not penetrate into the bottom plate ahead of the tool due to the contact resistance between the plates. Hence, the thermal contact resistance, inherent to lap welds, controls the effectiveness of preheating. The effect of preheating on FSW of aluminum was investigated by varying the laser power and workpiece material while maintaining constant tool geometry and material. The results of the parametric study are presented and show that while forces and torques are reduced by preheating, not as much as in butt welding because of the contact resistance produced by the nature of the weld. It was also found that the total power consumed in the process, defined as the sum of tool power and absorbed laser power, can decrease with preheating.

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"Influences of Welding Parameters on Friction Stir Welding of Aluminum and Magnesium: A Review". W Recent Advancements in Geotechnical Engineering. Materials Research Forum LLC, 2021. http://dx.doi.org/10.21741/9781644901618-28.

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Abstract. Friction stir welding (FSW) is an important joining process wherein two dissimilar metals and alloys are welded together using frictional heat produced in a revolving tool and workpiece. FSW is playing an important role in dissimilar material joining of Magnesium (Mg) and Aluminum (Al) materials due to the increasing demand for their industrial applications. In this review article, the research background of FSW processes, and influences of joining factors on tensile strength, micro-hardness, and microstructures of FSW of Al-Mg alloy materials have been studied. The effects of joining factors for example axial force, tool revolving speed, tool incline, speed, and offset on welding characterizes have been enlightened to make defect-free FSW of aluminum and magnesium alloys. The microstructural behaviors of intermetallic formation and material drift in FSW zones of Al-Mg were also studied to find the scope to improve the welding quality.

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Sivashanmugam, M., S. Ravikumar, T. Kumar, V. Seshagiri Rao i D. Muruganandam. "A review on friction stir welding for aluminium alloys". W International Conference on Frontiers in Automobile and Mechanical Engineering (FAME 2010). IEEE, 2010. http://dx.doi.org/10.1109/fame.2010.5714839.

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Bagaitkar, Harish, i Venkat Allada. "E-Design Tool for Friction Stir Welding". W ASME 2008 International Manufacturing Science and Engineering Conference collocated with the 3rd JSME/ASME International Conference on Materials and Processing. ASMEDC, 2008. http://dx.doi.org/10.1115/msec_icmp2008-72207.

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This paper describes efforts to develop a web-based E-Design tool for the Friction Stir Welding (FSW) technique. The input parameters to the E-Design tool are the joint specifications. The output parameters of the E-Design tool are process parameters such as tool geometry details, tool rpm, and plunge depth. The heart of the E-Design tool is the FSW database. The FSW database contains mappings of various input parameters and output parameters that are captured by referring to various experimental studies cited in the literature. The proposed E-Design tool deals with lap joints and butt joints between similar aluminum alloys.

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Raporty organizacyjne na temat "Friction stir welding of aluminum alloys"

Ren, Weiju, i Zhili Feng. Initial Development in Joining of ODS Alloys Using Friction Stir Welding. Office of Scientific and Technical Information (OSTI), sierpień 2007. http://dx.doi.org/10.2172/1093012.

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Hoelzer, David T., Jeffrey R. Bunn i Maxim N. Gussev. Complete Status Report Documenting Development of Friction Stir Welding for Joining Thin Wall Tubing of ODS Alloys. Office of Scientific and Technical Information (OSTI), sierpień 2017. http://dx.doi.org/10.2172/1407750.

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Hoelzer, David T., Caleb P. Massey, Christopher M. Fancher i Wei Tang. Complete Status Report Documenting the Development of Friction Stir Welding for Producing a Butt Joint in Thin Wall Tubing of ODS Alloys. Office of Scientific and Technical Information (OSTI), wrzesień 2018. http://dx.doi.org/10.2172/1492167.

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