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Friction Stir Weld Modeling at MSFC: KinematicsA "merry-go-round" computation model makes it easier to visualize how tracer experiments of varied sorts (chemical, shot, wire) are consistent with a "moving plug model" of flow around the friction stir welding pin-tool. The moving plug model comprises a twofold flow: 1. a primary rotation of a plug of metal with the tool, which moves metal around the tool by wiping it on and off the plug, and 2. a secondary, relatively slow circulation induced by the threads on the tool resembling a circular vortex ring around the tool.
Document ID
20000070735
Acquisition Source
Marshall Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Nunes, Arthur C., Jr.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 2000
Subject Category
Mechanical Engineering
Meeting Information
Meeting: Aerospace Materials, Processes and Environmental Technology
Location: Huntsville, AL
Country: United States
Start Date: September 18, 2000
End Date: September 20, 2000
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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