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Metals 2017, 7(11), 491; https://doi.org/10.3390/met7110491

Experimental Validation of an FSW Model with an Enhanced Friction Law: Application to a Threaded Cylindrical Pin Tool

1
International Center for Numerical Methods in Engineering (CIMNE), Universidad Politécnica de Cataluña, Campus Norte UPC, 08034 Barcelona, Spain
2
Sapa AB Technology, Kanalgatan 1, 612 81 Finspang, Sweden
*
Author to whom correspondence should be addressed.
Received: 6 October 2017 / Revised: 3 November 2017 / Accepted: 6 November 2017 / Published: 10 November 2017
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Abstract

This work adopts a fast and accurate two-stage computational strategy for the analysis of FSW (Friction stir welding) processes using threaded cylindrical pin tools. The coupled thermo-mechanical problem is equipped with an enhanced friction model to include the effect of non-uniform pressure distribution under the pin shoulder. The overall numerical strategy is successfully validated by the experimental measurements provided by the industrial partner (Sapa). The verification of the numerical model using the experimental evidence is not only accomplished in terms of temperature evolution but also in terms of torque, longitudinal, transversal and vertical forces. View Full-Text
Keywords: FSW; threaded pin; numerical model; experimental validation FSW; threaded pin; numerical model; experimental validation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Dialami, N.; Cervera, M.; Chiumenti, M.; Segatori, A.; Osikowicz, W. Experimental Validation of an FSW Model with an Enhanced Friction Law: Application to a Threaded Cylindrical Pin Tool. Metals 2017, 7, 491.

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