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Friction Plug Welding of 2195 Al-Cu-Li for Manned Space Launch VehiclesFriction Plug Welding (FPW) is currently being studied for use on the Space Transportation System's Super Light weight External Tank. This process has demonstrated the potential to solve on of Al-Li 2195's most challenging aspects repair welding. The current weld repair process is successful, but is labor intensive and inconsistent. Technology advances in FPW and tooling designs will be presented. The results of plug welding optimization, production implementation, considerations and cost benefit analysis are discussed. Among the tests to be discussed are tensile, surface crack tension, simulated service, liquid oxygen compatibility results and methods of repairing plug repairs. Tool design, computerized process control equipment and database record retention and analyses may also be addressed.
Document ID
19990078512
Acquisition Source
Marshall Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Takeshita, Riki P.
(Lockheed Martin Michoud Space Systems New Orleans, LA United States)
Hartley, Paula J.
(Lockheed Martin Michoud Space Systems New Orleans, LA United States)
Baker, Kent S.
(Lockheed Martin Michoud Space Systems New Orleans, LA United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 1998
Subject Category
Mechanical Engineering
Meeting Information
Meeting: AeroMat 1998
Location: Fairfax, VA
Country: United States
Start Date: June 1, 1998
Sponsors: American Society for Metals
Distribution Limits
Public
Copyright
Other

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