Results 121 to 130 of about 184 (157)
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Welding Multilayer Materials by Refill Friction Stir Spot Welding
2019In order to restrain global warming, automotive producers have adopted electric vehicle technology as one of the solutions to produce zero-emission cars as replacement for fuel combustion car. One of the challenges in production of the battery for electric vehicle is to weld thin electrode materials that have good electric conductivity, in multilayers ...
Uceu Suhuddin +3 more
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Comparison of Properties on Withdrawing and Refill Friction Stir Spot Welding Joints
Applied Mechanics and Materials, 2014The 2 mm sheet of 6082 - T6 aluminum alloy was carried to develop refill friction stir welding and withdrawing friction stir spot welding,the forming of solder joints , the cross-sectional microstructure and fracture morphology of welding joints were observed and analyzed, the cross-sectional microhardness of welding joints were tested.
Xi Jing Wang +3 more
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Refilling of Pinhole in Friction Stir Spot Welding Using Waste Chips
2019Friction stir welding (FSW) is considered as a sustainable and green alternative to conventional welding techniques. However, the pinhole left after welding is one of the major defects. This study discusses a novel technique of refilling the pinhole, left after conventional friction stir spot welding (FSSW) of aluminium alloy AA6082 overlapping sheets,
N. Bhardwaj +2 more
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Parametric study of two-stage refilled friction stir spot welding
Journal of Manufacturing Processes, 2016Abstract Two-stage refilled friction stir spot welding (TFSSW) is a novel refilling process, based on conventional FSSW. This process is done in two steps and with two independent tools, conventional and refilling tool. In this paper, TFSSW is studied, using Al 1100 sheets which were 2 mm in thickness, to evaluate effect of welding parameters on ...
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Experimental Investigation on Refill Friction Stir Spot Welding Process of Aluminum Alloys
Applied Mechanics and Materials, 2013With the growing demand for lightweight reduction and environment protection, lightweight materials like aluminum and magnesium alloys have been widely applied in the automotive and aerospace industry. Being a solid state welding process, refill friction stir spot welding (RFSSW) is suitable for spot joining lightweight metals.
Hong Gang Yang, Hai Jun Yang
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Advanced Materials Research, 2014
The main objective of the current work was to produce sound Refill FSSW joints between AA6181-T4 aluminum and DP600 steel plates. The steel plates were used in two different surface conditions: with and without galvanized surface layer. The Taguchi statistical method was used to find out the set of parameters indicated to produce joint with higher ...
Roger Navarro Verastegui +4 more
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The main objective of the current work was to produce sound Refill FSSW joints between AA6181-T4 aluminum and DP600 steel plates. The steel plates were used in two different surface conditions: with and without galvanized surface layer. The Taguchi statistical method was used to find out the set of parameters indicated to produce joint with higher ...
Roger Navarro Verastegui +4 more
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Reducing Cycle Times of Refill Friction Stir Spot Welding in Automotive Aluminum Alloys
SAE Technical Paper Series, 2020<div class="section abstract"><div class="htmlview paragraph">A major barrier, preventing RFSSW from use by manufacturers, is the long cycle time that has been historically associated with making a weld. In order for RFSSW to become a readily implementable welding solution, cycle times must be reduced to an acceptable level, similar to that
Brigham Larsen, Yuri Hovanski
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Recent Advances In Keyhole Defects Repairs Via Refilling Friction Stir Spot Welding
Materials Today: Proceedings, 2019Abstract The goal of any welding processing is to produce a defect-free sample that will serve the intended purposes. The major setback in friction stir spot welding (FSSW) is the keyhole that always left at the centre of the spot after welding process and also the keyhole that left at the end of friction stir welding and processing (FSW/P).
Omolayo M. Ikumapayi, Esther T. Akinlabi
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Materials Science Forum, 2013
Aluminium and magnesium alloys are expected to make considerable contributions in reducing the weight of automobiles as they are increasingly used as an alternative to steel; improving fuel economy and vehicle performance while simultaneously reducing emissions. Higher electrical and thermal conductivities of these materials make them difficult to weld
S. Venukumar +2 more
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Aluminium and magnesium alloys are expected to make considerable contributions in reducing the weight of automobiles as they are increasingly used as an alternative to steel; improving fuel economy and vehicle performance while simultaneously reducing emissions. Higher electrical and thermal conductivities of these materials make them difficult to weld
S. Venukumar +2 more
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Enhancing refill friction stir spot welding with ultrasonic waves: An experimental study
Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and ApplicationsThis study investigates the integration of ultrasonic vibrations into the Refill Friction Stir Spot Welding (RFSSW) process to assess their impact on weld quality. The results indicate that the application of ultrasonic waves can improve weld strength by increasing penetration depth and allowing for reduced tool rotational speeds.
Esmaeel Poor Esmaeel +2 more
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