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Influence of tool pin geometry and moving paths of tool on channel formation mechanism in modified friction stir channeling technique

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Abstract

Modified friction stir channeling (MFSC) technique was applied to create a channel in monolithic plate of 5083 Al Alloy. The two tools profiles, including straight cylindrical pin (SCP) and upward conical pin (UCP) were considered for channeling on the linear and nonlinear paths. The advantages of the channeling process with UCP tool were easy nonlinear channeling, the increase in height and hydraulic diameter of channel, and the enhancement on the channel structure. For both tools, the stop-action technique was used to explore the material flow and channeling mechanism. The channels’ shapes were approximately similar at the different locations of channeling line under nonlinear paths. Furthermore, along the vertical path, characteristics of channel were stable and constant during channeling process. The similar results were achieved along the curve direction when the advancing side was along the inner curve. Nevertheless, when the advancing side was along the outer curve, the values of channel characteristics were varying at the different locations of the curve path. The channeling mechanisms were studied along the nonlinear ways, too. It was discovered that the shear layers displacement along the curve path and the extraction material by tool pin were responsible for the variations of channel properties on curve paths.

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Authors and Affiliations

  1. Faculty of Mechanical Engineering, University of Tabriz, Emam street, 29 Bahman Blvd, Tabriz, Iran, 5166616471

    Arash Rashidi & Amir Mostafapour

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  1. Arash Rashidi
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  2. Amir Mostafapour
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Correspondence to Arash Rashidi.

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Rashidi, A., Mostafapour, A. Influence of tool pin geometry and moving paths of tool on channel formation mechanism in modified friction stir channeling technique. Int J Adv Manuf Technol 80, 1087–1096 (2015). https://doi.org/10.1007/s00170-015-7049-7

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  • DOI: https://doi.org/10.1007/s00170-015-7049-7

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