Relevant bibliographies by topics / Friction; Welding; fabrication

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Friction; Welding; fabrication'

Author: Grafiati
Published: 2 June 2025
Last updated: 19 July 2025

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Journal articles on the topic "Friction; Welding; fabrication"

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Mr., Mayur N. Patel* Mr. Mitul J. Barot Mr. Yashica J. Patel Mr. Krunal M. Prajapati. "INVESTIGATION AND OPTIMIZATION OF TENSILE STRENGTH OF FRICTION STIR WELDING JOINT: AN OVERVIEW." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 5, no. 12 (2016): 361–67. https://doi.org/10.5281/zenodo.199616.

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Welding is a fabrication process used to join materials, usually metals or thermoplastics, together. During welding,the work pieces to be joined are melted at the joining interface and usually a filler material is added to forma weld pool of molten material that solidifies to become a strong joint. In contrast, Soldering and Brazing do not involve melting the work piece but rather a lower melting point material is melted between the work pieces to bond them together. Friction Stir Welding (FSW) was invented by Wayne Thomas at TWI (The Welding Institute), and the first patent applications were filed in the UK in December1991. Initially, the process was regarded as a “laboratory” curiosity, but it soon became clear that FSW offers numerous benefits in the fabrication of aluminum products. Friction Stir Welding is a solid-state process, which means that the objects are joined without reaching melting point. This opens up whole new areas in welding technology.
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Vanama, Santosh. "Design and Fabrication of Friction Stir Welding End-Effector for an ABB IRB1410 Robot." IAES International Journal of Robotics and Automation (IJRA) 5, no. 2 (2016): 98. http://dx.doi.org/10.11591/ijra.v5i2.pp98-104.

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<p>The paper propose modelling and fabrication of friction stir welding end-effector for ABB IRB1410 robot. A dynamically developing version of pressure welding processes, join material without reaching the fusion temperature called friction stir welding. As friction stir welding occurs in solid state, no solidification structures are created thereby eliminating the brittle and eutectic phase’s common to fusion welding of high strength aluminium alloys. In this paper, Friction stir welding is applied to aluminum sheets of 2 mm thickness. A prototype setup is developed to monitor the evolution of main forces and tool temperature during the operation. Pressure of a gripper plays a major role for tool rotation and developing torque. Fabrication of the tool has done. Force calculations are done by placing the sensors on the outer surface of gripper. Methods of evaluating weld quality are surveyed as well.</p>
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Kumar, Manoj, Pawan Kumar Sapra, and Balwinder Singh Sidhu. "Evaluation of Mechanical Properties of FSW Al 2014 T4 & Al 6061 T6 Alloys." Asian Review of Mechanical Engineering 2, no. 2 (2013): 1–5. http://dx.doi.org/10.51983/arme-2013.2.2.2353.

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Friction Stir Welding (FSW) is fairly a recent technique that uses a non-consumable rotating welding tool to generate frictional heat and plastic deformation at the welding location while the material is in solid state. The principal advantages are low distortion, absence of melt related defects and high joint strength. Tool design and material plays a vital role in addition to the important parameters like tool rotational speed, welding speed and axial force. Friction Stir Welding (FSW) is a solid state welding process to join materials by generating frictional heat between a rotating tool and materials being welded. It was invented at The Welding Institute (TWI), Cambridge (U.K.) in 1991. Since then FSW has become a major joining process in the aerospace, railway and ship building industries especially in the fabrication of aluminium alloys. It is difficult to weld the aluminium alloys, using arc welding, gas welding and other welding processes. Friction Stir Welding on the other hand, can be used to join most Al alloys and better surface finish is achieved. Although the work piece does heat up during friction stir weld, the temperature does not reach the melting point. In this research work, rotational speed and traversing speed was considered for friction stir welding butt joint of Al alloy 2014 T4 & 6061 T6 alloys and further mechanical properties such as tensile strength, Vickers hardness and micro structure was studied.
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B., S. Bharadwaj, and Phani Raja Rao N. "Investigation on Mechanical Properties of AL6061 Alloy Processed by FSW." International Journal of Trend in Scientific Research and Development 2, no. 6 (2018): 1159–61. https://doi.org/10.31142/ijtsrd18802.

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The aim of this experiment was to improve the mechanical properties of 6061 aluminium alloys by friction stir processing FSP , a solid state technique for micro structural modification using the heat from a friction and stirring. The Aluminium alloy 6061 is widely used in the fabrication of lightweight structures with high strength to weight ratio and good corrosion resistance. Welding is main fabrication method of 6061 alloy for manufacturing various engineering components. Friction stir welding FSW is a recently developed solid state welding process to overcome the problems encountered in fusion welding. This process uses a non consumable tool to generate frictional heat on the abutting surfaces. The welding parameters, such as tool pin profile, rotational speed, welding speed and axial force, play major role in determining the micro structure and corrosion resistance of welded joint. In this work a central composite design with two different speeds, traverse speeds and Four tools has been used to minimize the experimental conditions. B. S. Bharadwaj | N. Phani Raja Rao "Investigation on Mechanical Properties of AL6061 Alloy Processed by FSW" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-6 , October 2018, URL: https://www.ijtsrd.com/papers/ijtsrd18802.pdf
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Mayourshikha, Pancholi (Bhatnagar). "A REVIEW ON FRICTION STIR WELDING OF ALUMINIUM." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 8, no. 5 (2019): 208–12. https://doi.org/10.5281/zenodo.3228748.

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Aluminium alloy has gathered wide acceptance in the fabrication of light weight structures requiring a high strength to weight ratio. Compared to the fusion welding processes that are routinely used for joining aluminium alloys, Friction Stir Welding (FSW) process is an emerging solid state joining process in which the material that is being welded does not melt and recast. Friction Stir Welding is the most remarkable welding technology that has been invented and developed in last two decades. This process uses a non-consumable tool to generate frictional heat in the abutting surfaces. The welding parameters such as tool shoulder diameter, tool rotational speed, welding speed, axial force play a major role in deciding the joint strength. In presen study an attempt has been made to develop a mathematical model to predict tensile strength of the friction stir welded AA8011 aluminium alloy by incorporating FSW process parameters. Four factors, five levels central composite design has been used to minimize number of experimental conditions.
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Kil, Sang Cheol, and Hwan Tae Kim. "Welding Technology of Lightweight Alloys." Materials Science Forum 580-582 (June 2008): 75–80. http://dx.doi.org/10.4028/www.scientific.net/msf.580-582.75.

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The trend of the welding technology of lightweight alloys such as aluminum alloy and magnesium alloy has been studied. The lightweight alloys in the automobile, high-speed light aircraft and modern aerospace industry can reduce vehicle weight, while stringently demanding the high quality and efficienct welding techniques, to produce the best weldments. Among the production technologies, welding plays an important role in the fabrication of lightweight vehicle structure. This has led to an increasing attention towards the use of modern welding technology such as laser beam welding process, ultrasonic welding process, friction stir welding technology and laser hybrid welding technology, etc. This paper covers the recent technical trends of welding technologies of lightweight alloys including the COMPENDEX DB analysis of welding metallurgy, welding process, and welding fabrications.
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Halverson, Bruce, and John F. Hinrichs. "Friction Stir Welding (FSW) of Littoral Combat Ship Deckhouse Structure." Journal of Ship Production 23, no. 03 (2007): 161–63. http://dx.doi.org/10.5957/jsp.2007.23.3.161.

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The US Navy's Littoral Combat Ship (LCS) represents a new direction in military capabilities and ship design. The LCS's aluminum superstructure and deckhouse reduces weight and lowers the center of gravity of the ship. Arc welding aluminum is subject to distortion requiring no value straightening activities to be used. Friction stir welding (FSW), a welding process invented in 1991 at TWI in the United Kingdom, is a solid-state welding process that has considerably less weld distortion. It results in more affordable fabrication and inspection of the butt joint weld root. Details of the FSW process development, certification, and fabrication of the LCS superstructure and deck house are described. Experience with FSW on the LCS has resulted in a number of new fabrication ideas and concepts to improve affordability of future LCS and other aluminum ship structures.
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Boumerzoug, Zakaria. "Joining of dissimilar materials by friction stir welding." MATEC Web of Conferences 224 (2018): 01118. http://dx.doi.org/10.1051/matecconf/201822401118.

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Welding is a process of joining materials into one piece. Welding is used extensively for pipe welding, aerospace, aviation, biomedical implants, fabrication of race cars, choppers, etc. Welding processes include thermal fusion joining processes and solid-state joining processes. Among solid-state joining processes, there is a friction stir welding which is applied to join two workpieces without materials. This technique of welding has great is used to weld dissimilar materials. This type of welding is gaining renewed interest, because the main objective is to reduce the total weight and maintaining essential physical properties. The objective of this paper is to focus on the friction stir welding of dissimilar materials.
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Muruganandam, D., and Sushil Lal Das. "Evaluation of Bending and Impact Strength Characteristics on Friction Stir Welding of Dissimilar 7075T651 – 6061T651 Butt Joints." Asian Review of Mechanical Engineering 1, no. 1 (2012): 1–6. http://dx.doi.org/10.51983/arme-2012.1.1.2515.

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Aluminium alloys have gathered wide acceptance in the fabrication of light weight structures requiring a high strength-to weight ratio and good corrosion resistance. Modern structural concepts demand reductions in both the weight as well as the cost of the production and fabrication of materials. Therefore welding processes have proven more attractive, and there is an urgency to study their potential. Compared to the fusion welding processes that are routinely used for joining structural aluminium alloys, Friction Stir Welding (FSW) process is an emerging solid state joining process was invented in 1991 by TWI, in which the material that is being welded does not melt and recast. The major advantage in FSW process is that the maximum temperature reached is less than 80% of the Melting Temperature (TM), i.e., the joint is performed in the solid-state and excessive micro structural degradation of the weld zone is avoided. This process uses a non-consumable tool to generate frictional heat in the abutting surfaces. The welding parameters such as tool rotational speed, welding speed, axial force etc., and tool pin profile play a major role in deciding the joint strength. This paper focus on impact and bending strength evaluation and predicting the process parameters in varying rotational and welding speeds of friction-stir welding for the dissimilar precipitation hardenable aluminium alloys ie., between 6xxx (Al-Mg-Si) and 7xxx (Al-Zn-Mg).
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Saravana, Kumar. R., Rajasekaran T., Singh. D. Ankit, and Singh Amandeep. "Design and Fabrication of Fixtures for Friction Stir Welding." Research and Development in Machine Design 5, no. 1 (2022): 1–6. https://doi.org/10.5281/zenodo.6583027.

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<em>Friction stir welding (FSW) is a solid state welding process with no defects that usually arise from conventional heating. FSW aluminum alloys are made in a general grinding machine. The high cost and unavailability of FSW systems have prompted this project to design and create a new version. Adjustments must be made and made to withstand high vibrations and high temperatures during the welding process. The workpiece was subjected to torque, transverse, axial, and lateral forces composed of metals. In this work, the construction of the facility was done using 2D AUTOCAD drawings and 3D modeling using SOLIDWORKS. When designing an object, a number of factors are taken into account, such as the appropriate distance specified for the installation of the base plate and the welding material. The test rig is designed to prevent the dispersion or lifting of the samples throughout the assembly process and to ensure uniform distribution of temperature and plates. Due to the presence of these forces, a major challenge is the resistance of all these forces and this is one of the objectives of building the structure. Through the FSW process, there is the design, development, and testing of a new storage area for the general grinding machine.</em>
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Dissertations / Theses on the topic "Friction; Welding; fabrication"

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Lai, Yu-Zheng, and 賴羽箏. "Fabrication of the Steel / Aluminum Alloy Clade Plate Using Friction Stir Welding." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/7322da.

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碩士<br>國立中山大學<br>機械與機電工程學系研究所<br>102<br>In this study, friction stir lap welding was performed using the assembled-type tool for zinc-coated steel sheet 2 mm thick on aluminum alloy sheet 10 mm thick. Effects of rotating speed and feeding rate on the joint strength are investigated at a certain of the dwell time and the downward force. Results show that the strength of the joint of 13 kN is obtained under the condition of the rotating speed of 800 rpm, and the feeding rate of 125 mm/min. According to the measured joint strength in a single pass, the better are selected for the two passes. Results show that the joint strength is for the two passes 1.3 times as high as that of the joints for a single pass at the dwell time of 20 s, the downward force of 13 kN, the rotating speed of 600 rpm, and the feeding rate of 125 mm/min. Moreover, the flux added is on the interface between steel and aluminum alloy sheets to investigate its influence on the joint strength. Results show that the joint strength with a flux is poorer than that of the joint without flux at the dwell time of 60 s, the downward force of 13 kN, the rotating speed of 800 rpm, and the feeding rate of 60 mm/min. Flux can effectively prevent the oxidation around the interface between the sheets, but the joint strength is poorer.
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Chang, Jui-En, and 張瑞恩. "Fabrication of the Copper/ Aluminum Alloy Clad Plate Using Friction Stir Welding." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/25r7aa.

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碩士<br>國立中山大學<br>機械與機電工程學系研究所<br>102<br>This study tried to join copper sheet (3 mm thick) on aluminum alloy plate (7 mm thick) by friction stir lap welding using a pinless tool with 16 mm diameter at zero tilt angle. First, in order to prevent the oxidation of the joining surface in the welding process, an aluminum sheet (10 mm thick) was machined to form a rectangular slot of 25 mm wide on its center region to accommodate a copper sheet (3 mm thick). Four edges of copper sheet were welded by the friction stir butt welding using a pinless tool as a pretreatment. Second, effects of rotational speed and plunge depth on the quality of the welded joint by the friction stir spot welding were investigated. Experimental results showed that the fractured thickness of aluminum alloy adhered on the copper sheet increased with increasing rotational speed of a plunge depth of 0.2 mm, and with increasing plunge depth at a rotational speed of 1000 rpm. According to the above results to select the rotational speed and plunge depth, effect of welding speed on the shear strength and the measured temperature in the joint line at a distance of 10 mm from top surface of workpiece was investigated in the friction stir lap welding. Experimental results showed that the shear strength of welded specimen was stronger at low welding speed, but the quality of the welded joint was unstable at the welding speed of 32 mm/min. The multiple passes of copper sheet can be successfully joined on the aluminum alloy plate using the rotational speed of 1000 rpm, plunge depth of 0.3 mm, and welding speed of 60 mm/min.
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Chen, Wei-Jen, and 陳韋仁. "Fabrication, Design and Characteristic Optimization of Friction Stir Welding on 6061 Aluminum Alloy." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/85813701626358672373.

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碩士<br>國立高雄第一科技大學<br>機械與自動化工程研究所<br>99<br>This study reports optimal mechanical properties with control factors on the friction stir welding(FSW) processes. These parameters including substrate material, profiled pin material, profiled pin length, profiled pin shape, the time of welding waiting, rotational speed of the milling machine, feed rate, the angle of inclination of profiled pin in this experiment. The eight control factors were designed in a factorial orthogonal array experiment, and the effects of control parameters on the smechanical properties were critically evaluated in the Taguchi designed experiments. A fuzzy logic system with knowledge bases in the inference engine was used to explore the relationships between variables and responses in the mechanical properties. Furthermore, we used Taguchi-fuzzy method to obtain the optimization parametric of multiple quality characteristics by friction stir welding. This study is to analyze and optimize multiple mechanical properties of friction stir welding. The optimal parameters as substrate material of copper, profiled pin material, profiled pin length of 8mm, profiled pin shape of cylinder and spiral tooth, the welding waiting time of 15sec, rotational speed of 560rpm, feed rate of 100mm/min, the angle of inclination of profiled pin of 5°. These mechanical properties such as improving 1.90db in tensile strength, improving 1.41db in bending strength, improving 1.10db in bears the shock strength and improving 1.22db in hardness through the optimization. It was clear that FSW multiple characteristics are greatly improved through the Taguchi-Fuzzy logic operation, and these findings achieved the desired values in the integrated properties.
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Books on the topic "Friction; Welding; fabrication"

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J, Arbegast W., Hartley P. J, and United States. National Aeronautics and Space Administration., eds. Friction Stir Weld tooling development for application on the 2195 Al-Cu-Li space transportation system external tank. National Aeronautics and Space Administration, 1998.

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

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Friction Stir Weld tooling development for application on the 2195 Al-Cu-Li space transportation system external tank. National Aeronautics and Space Administration, 1998.

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Siddiquee, Arshad Noor, Sachin Maheshwari, and Namrata Gangil. Composite Fabrication on Age-Hardened Alloy Using Friction Stir Processing. Taylor & Francis Group, 2020.

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Composite Fabrication on Age-Hardened Alloy Using Friction Stir Processing. Taylor & Francis Group, 2020.

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Siddiquee, Arshad Noor, Sachin Maheshwari, and Namrata Gangil. Composite Fabrication on Age-Hardened Alloy Using Friction Stir Processing. Taylor & Francis Group, 2020.

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Siddiquee, Arshad Noor, Sachin Maheshwari, and Namrata Gangil. Composite Fabrication on Age-Hardened Alloy Using Friction Stir Processing. Taylor & Francis Group, 2020.

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Siddiquee, Arshad Noor, Sandeep Rathee, Manu Srivastava, Sachin Maheshwari, and T. K. Kundra. Friction Based Additive Manufacturing Technologies. Taylor & Francis Group, 2021.

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Friction Based Additive Manufacturing Technologies: Principles for Building in Solid State, Benefits, Limitations, and Applications. Taylor & Francis Group, 2018.

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Siddiquee, Arshad Noor, Sandeep Rathee, Manu Srivastava, Sachin Maheshwari, and T. K. Kundra. Friction Based Additive Manufacturing Technologies: Principles for Building in Solid State, Benefits, Limitations, and Applications. Taylor & Francis Group, 2018.

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Book chapters on the topic "Friction; Welding; fabrication"

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Brown, Jeremy, and Dwight Burford. "Friction Stir Fabrication of Spar T-Joints Made from 7075 Aluminum." In Friction Stir Welding and Processing VI. John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118062302.ch26.

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Ma, Z. Y., Z. Y. Liu, B. L. Xiao, and W. G. Wang. "Fabrication of Carbon Nanotube Reinforced Aluminum Matrix Composites via Friction Stir Processing." In Friction Stir Welding and Processing VII. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-48108-1_3.

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Ma, Z. Y., Z. Y. Liu, B. L. Xiao, and W. G. Wang. "Fabrication of Carbon Nanotube Reinforced Aluminum Matrix Composites via Friction Stir Processing." In Friction Stir Welding and Processing VII. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118658345.ch3.

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Shi, Qing-Yu, Kai Sun, Wei Wang, and Gao-qiang Chen. "Flow behavior of SiC particles as tracer material during the fabrication of MMCs by friction stir processing." In Friction Stir Welding and Processing VII. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-48108-1_4.

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Shi, Qing-Yu, Kai Sun, Wei Wang, and Gao-qiang Chen. "Flow Behavior of SiC Particles as Tracer Material during the Fabrication of MMCs by Friction Stir Processing." In Friction Stir Welding and Processing VII. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118658345.ch4.

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Troost, Nicolaas C. H., Henk den Besten, Santonu Ghosh, and Stephen Cater. "Advances in Steel FSW for Transport Applications." In Lecture Notes in Mobility. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-89444-2_88.

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Abstract Friction stir welding (FSW) is a solid-state joining process that gives welds with excellent mechanical properties. The drive towards electrification has seen FSW adopted by the automotive sector for the fabrication of lightweight aluminium car bodies and battery assemblies. Element Six utilised their expertise in high performance, abrasion and temperature resistant materials to develop a FSW tool for steel and this was trialled at TWI where welding techniques were developed to allow welds to be made both in air and under water. A rigorous, independent assessment of weld quality was undertaken by the Technical University of Delft (TUD) and publications and dissemination resulting from this work has identified a number of potential other applications across the wider transport sector.
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Sen, Meghnath, and Asit Baran Puri. "Automation in Friction Stir Welding: A New Era of Fabrication Techniques." In Emerging Trends in Mechatronics. Springer Nature Singapore, 2024. https://doi.org/10.1007/978-981-97-8472-1_5.

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Raja, Sufian, Mohd Bilal Naim Shaikh, Mobin Majeed, Ayush Varshney, and Abdul Samad. "Design, Modelling, Fabrication, and Testing of Vertical Milling Machine Fixture for Friction Stir Welding Operation." In Springer Proceedings in Materials. Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-3297-6_9.

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Das, Ankan, Himangshu Kalita, Sajan Kapil, and Pankaj Biswas. "Feasibility Study for Fabricating Smart Structures Using Hybrid Additive Manufacturing Based on Friction Stir Welding." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-5919-8_45.

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Schwartz, Mel. "Friction Stir Welding." In Innovations in Materials Manufacturing, Fabrication, and Environmental Safety. CRC Press, 2010. http://dx.doi.org/10.1201/b10386-5.

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Conference papers on the topic "Friction; Welding; fabrication"

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Luty, Grzegorz, Agata Wronska, Jacek Andres, and Tomasz Galaczynski. "Advanced Techniques For The Fabrication Of Airframe Structures Using Innovative Friction Stir Welding (FSW) Technology." In Vertical Flight Society 74th Annual Forum & Technology Display. The Vertical Flight Society, 2018. http://dx.doi.org/10.4050/f-0074-2018-12804.

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One of the alternative method for welding method is a friction stir welding (FSW), which was developed in 1991 at TWI (The Welding Institute) in the United Kingdom, initially especially for joining aluminum and its alloys [1]. This process consists in joining of materials in solid state, which eliminates the problems resulting from melting the material and its re-solidifying, such as, hot cracking, residual stresses and distortion created during conventional welding. In this process, the heat which plasticized the material is provided by rotating tool consisting of shoulder and pin. This tool penetrates into the base material and then moves along the welding line. As a result of the friction between tool and joining materials is generated a sufficient amount of heat allowing on mixed the base material and create FSW joint. Among the most important advantages of using the FSW method should be listed: relatively easy automatization (it is often possible to use conventional CNC machine), lower residual stresses in the welded joints and their very good mechanical properties (often exceed the mechanical properties of welded or riveted joints). Project FAST_FSW (Advanced techniques for the Fabrication of Airframe STructures using innovative friction stir welding (FSW) technology) is realized within consortium between PZL Mielec and research partner Czestochowa University of Technology. The main objective of the FAST_FSW Project is to develop friction stir welding technology to aircraft design and manufacturing for introduce fasteners free, lighter weight and lower cost aerostructures.
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Toguyeni, Grégory, Ozan Caliskanoglu, and Christian Pfeiffer. "Reduction of Tool Wear and Loads During Friction Stir Welding of Steel for Pipeline Fabrication." In MPWT 2019. NACE International, 2019. https://doi.org/10.5006/mpwt19-14275.

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Abstract Friction stir welding procedure development was initiated on steel grades S460 G2+M and S690QL1 in plate wall thicknesses of 10 and 15mm. In order to tackle the challenges of the high mechanical loads on the tool as well as its premature wear, a combination of preheating and optimized weld backing set-up was implemented. The inductive preheating allowed a 28% reduction in welding torque and a significant reduction of the tool wear, particularly during the critical initial plunge of the tool within the base material. A comparison of Mo-based and W-based tool was performed, allowing identifying the W-based tool as having a better combination of high temperature strength and wear resistance. Different backing arrangements and materials were investigated. Ceramic backing inlays were used in order to reduce the heat loss at the root area and maintain an acceptable stirring of this zone to achieve full penetration welds. The welds quality was assessed via metallurgical examination, bend tests, and confirmed the possibility to perform sound full-penetration, one-sided welds. The contribution of the preheating to the process as well as the quality and mechanical properties of the welds will be discussed here.
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Hehn, Lucien, Kevin Wyble, Carlos J. B. M. Joia, Robert P. Badrak, Kenneth E. Casner, and George Waid. "Issues Involved in the Development of a Testing Program and Production Qualification Procedure for SSC-Resistant Friction-Type Welds for a Fully SSC-Resistant Intervention Riser." In CORROSION 2012. NACE International, 2012. https://doi.org/10.5006/c2012-01646.

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Abstract Sour service drill pipe product has long been in use with tool joints and tubes separately meeting criteria for sour service through IRP Volume 1 - Critical Sour Drilling to welding.1 The weld area of the final product is omitted for SSC testing. Though there are few reports of field failures of sour service drill pipe occurring in the weld area, in SSC laboratory tests, the weld area exhibits reduced resistance to cracking in H2S compared with drill pipe. Friction-type welds have several features which differ from arc welding type fabrication welds for which detailed qualification procedures are outlined in ANSI/NACE MR0175/ISO 15156.2 Friction-type welds present some unique challenges in obtaining SSC resistance. This paper will demonstrate that with an ongoing testing program, selection of appropriate testing stress levels and alloys, and strong end-user (customer) interaction, a set of production qualification criteria for SSC resistance of friction-type welds is possible. A Vickers hardness based production qualification procedure for friction-type welds which was developed and verified through SSC testing will be discussed. This SSC-resistant friction-type weld was developed for a very specific application: an intervention riser. End-user interaction was critical in developing testing procedures specific for the expected field environment conditions.
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Komarasamy, Mageshwari, and Glenn Grant. "Material Synthesis and Advanced Manufacturing Without Melting: Advantages of Bulk, High-Shear Processing." In AM-EPRI 2024. ASM International, 2024. http://dx.doi.org/10.31399/asm.cp.am-epri-2024p0473.

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Abstract The next generation of materials and assemblies designed to address challenges in power generation, such as molten salt or supercritical carbon dioxide thermal transfer systems, corrosion, creep/fatigue, and higher temperature operation, will likely be highly optimized for their specific performance requirements. This optimization often involves strict control over microstructure, including homogeneity, grain size, texture, and grain boundary phases, as well as precise alloy chemistry and homogeneity. These stringent requirements aim to meet the new demands for bulk mechanical performance and durability. Some advanced materials, like oxide-dispersion strengthened or high-entropy alloys, necessitate specialized synthesis, fabrication, or welding/joining processes. Traditional methods that involve melting and solidifying can compromise the optimized microstructure of these materials, making non-melting synthesis and fabrication methods preferable to preserve their advanced characteristics. This paper presents examples where solid-phase, high-shear processing has produced materials and semi-finished products with superior performance compared to those made using conventional methods. While traditional processing often relies on thermodynamics-driven processes, such as creating precipitate phases through prolonged heat treatment, high-shear processing offers kinetics-driven, non-equilibrium alternatives that can yield high-performance microstructures. Additionally, examples are provided that demonstrate the potential for more cost-effective manufacturing routes due to fewer steps or lower energy requirements. This paper highlights advances in high-shear extrusion processing, including friction extrusion and shear-assisted processing and extrusion, as well as developments in solid-phase welding techniques like friction stir welding for next-generation power plant materials.
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Gooch, T. G., and P. Woollin. "Welding Techniques for High Alloy Austenitic Stainless Steel." In CORROSION 1996. NACE International, 1996. https://doi.org/10.5006/c1996-96420.

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Abstract Factors controlling corrosion resistance of weldments in high alloy austenitic stainless steel are described, with emphasis on microsegregation, intermetallic phase precipitation and nitrogen loss from the molten pool. The application is considered of a range of welding processes, both fusion and solid state. Autogenous fusion weldments have corrosion resistance below that of the parent, but low arc energy, high travel speed and use of N2- bearing shielding gas are recommended for best properties. Conventional fusion welding practice is to use an overalloyed nickel-base filler metal to avoid preferential weld metal corrosion, and attention is given to the effects of consumable composition and level of weldpool dilution by base steel. With non-matching consumables, overall joint corrosion resistance may be limited by the presence of a fusion boundary unmixed zone: better performance may be obtained using solid state friction welding, given appropriate component geometry. Overall, the effects of welding on superaustenitic steels are understood, and the materials have given excellent service in welded fabrications. The paper summarises recommendations on preferred welding procedure.
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Sugiharto, S., Gatot Santoso, Toto Supriyono, Muhamad Rizki Sumartono, and Gilang Darmawan. "Design, fabrication, and testing the friction welding machine for laboratory application." In INTERNATIONAL CONFERENCE OF NUMERICAL ANALYSIS AND APPLIED MATHEMATICS ICNAAM 2021. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0151337.

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7

Lewise, K. Anton Savio, J. Edwin Raja Dhas, and R. Pandiyarajan. "Design, fabrication and analysis of linear clamping fixture for friction stir spot welding." In PROCEEDINGS OF THE 1ST INTERNATIONAL CONFERENCE ON FRONTIER OF DIGITAL TECHNOLOGY TOWARDS A SUSTAINABLE SOCIETY. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0113165.

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8

Bagaitkar, Harish, and Venkat Allada. "Design for Manufacturing (DFM) Methodology to Implement Friction Stir Welding (FSW) for Automobile Chassis Fabrication." In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/detc2008-49247.

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The manufacturing functional feasibility of implementing Friction Stir Welding (FSW) for automobile chassis fabrication is discussed using a case study. In the case study, the Design for Manufacturing (DFM) principles are applied to manufacture an aluminum automobile chassis. Various DFM issues are addressed while proposing the FSW technique as an alternative to laser welding and metal inert gas welding techniques. DFM guidelines involving joint design change, component geometries, and component elimination are discussed in this paper. By making appropriate changes in the component geometries and joint designs and eliminating some components, more than 50% of the joints in the example case study could be welded using the FSW technique.
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Yasui, Toshiaki, Yuki Ogura, Xu Huilin, et al. "Control of Material Flow During Friction Stir Welding Between Aluminum and Steel by Welding Tool Shape." In JSME 2020 Conference on Leading Edge Manufacturing/Materials and Processing. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/lemp2020-8594.

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Abstract For the Friction stir welding (FSW) between aluminum and steel is important to fabricate vehicles with light weight and high strength for safety at low cost. For the fabrication of sound weld, it is necessary to control the material flow during FSW. In this study, the material flow during FSW was elucidated by numerical simulation by computational fluid dynamics (CFD) analysis and simulation experiment by transparent Poly-vinyle chloride (PVC) as simulant of aluminum and tracer material. Based on this material flow analysis, several shapes of welding tool were examined for control of material flow during FSW. Scroll shoulder is effective for enhancement of stirring zone by increasing material velocity around the probe. Flute and fine screw probe promote the material flow in depth and horizontal direction. The welding tool with scroll shoulder and flute and fine screw probe achieved sound weld with highest tensile strength of 120.4 MPa.
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Ahuja, Yogita, Raafat Ibrahim, Anna Paradowska, and Daniel Riley. "Probeless Tool Aided Friction Stir Welding as a Fabrication Technique for Tungsten Embedded Mechanical Composite of Copper." In ASME 2014 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/pvp2014-28571.

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Friction stir welding (FSW) is a relatively new solid state metallurgical joining technique. It flourishes on the simple principle of utilising frictional heat by the stirring motion of a non-consumable rotating tool to create the seam. Feasibility of FSW aided by a newly designed probeless tool was investigated for fabricating copper-tungsten mechanical composite. The most effective parameter combination was determined by conducting a parametric study of the probeless tool aided FSW copper. Strength of the mechanical composite fabricated at this condition was evaluated through punch shear testing. Punch shear testing established that the friction stir welded interface of the copper-tungsten composite was 87% as strong as the base metal (i.e. copper). Advantages of the designed technique have been summarised.
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