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- W89326729 abstract "The Marshall Space Flight Center is developing and characterizing the friction stir welding process for the Space Shuttle and other space programs. This revolutionary process, invented and patented by The Weld Institute in England, offers tremendous advantages for joining aluminum for high performance applications. It is particularly suited for advanced aluminum-lithium alloys, such as 2195, the primary structural alloy used in the External Tank. The friction stir welding process joins metals with minimal heat input, resulting in high-strength joints with high ductility. It is a simple process to demonstrate using a common milling machine for sample parts, but relatively expensive to implement on large-scale hardware, due to the high cost of tooling needed to handle the high forging pressures characteristic of the process. Recent developments at the Marshall Space Flight Center have demonstrated friction stir welding on linear joints up to 5 meters (15 ft.), with material thickness ranging between 2.5 mm and 16.5 mm (0.100 to 0.650). High efficiency weld joints have been produced in aluminum from the 2000, 5000, and 6000 series alloy systems. A retractable pin tool system was patented by MSFC that allows use of friction stir welding for joints with changing material thickness, and with less rigid tooling than previously considered. This presentation will describe the details of alloys welded to-date and technical advances under development at MSFC. These developments could have substantial benefit to industrial applications for welding aluminum." @default.
- W89326729 created "2016-06-24" @default.
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- W89326729 date "2002-04-12" @default.
- W89326729 modified "2023-09-27" @default.
- W89326729 title "Friction-Stir Welding of Aluminum For the Space Program" @default.
- W89326729 hasPublicationYear "2002" @default.
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