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Technical Briefs

Development of a Mechanistic Model for Friction Stir Channeling

[+] Author and Article Information
N. Balasubramanian, K. Krishnamurthy

Department of Mechanical and Aerospace Engineering, Missouri University of Science and Technology, Rolla, MO 65409

R. S. Mishra1

Department of Materials Science and Engineering, Center for Friction Stir Processing, Missouri University of Science and Technology, Rolla, MO 65409rsmishra@mst.edu

1

Corresponding author.

J. Manuf. Sci. Eng 132(5), 054504 (Sep 27, 2010) (4 pages) doi:10.1115/1.4002453 History: Received November 12, 2008; Revised June 25, 2010; Published September 27, 2010; Online September 27, 2010

A mechanistic model for the process specific energy as a function of the processing parameters during friction stir channeling (FSC) in Al6061-T6 was developed and investigated. The thermal cycle acting on the surface of the workpiece was measured using an infra red (IR) camera and the peak temperatures were studied as a function of the specific energy. The channel area is plotted against the process specific energy and is analyzed. A relationship between the processing conditions (tool rotational rate, traverse speed, and plunge depth) and the channel area is defined.

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Copyright © 2010 by American Society of Mechanical Engineers
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Figures

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Figure 4

Variation of the channel area as a function of (a) pseudoheat index and (b) specific energy

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Figure 3

Variation of peak temperatures against specific energy along (a) advancing side and (b) retreating side

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Figure 2

Variation of peak temperatures against pseudoheat index along (a) advancing side and (b) retreating side

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Figure 1

A channel fabricated using friction stir channeling technique

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