Advanced Solid-State Joining Processes for 2219 Aluminum Alloys, Phase I

Metadata Updated: May 2, 2019

Thermal Stir Welding (TSW) advances the more conventional Friction Stir Welding (C-FSW) process by separating the primary process variables of metal stirring and forging from the control of the workpiece temperature. The independent heating is obtained by placing an induction coil in front of a specially modified tool to bring the workpiece to the appropriate joining temperature. However, studies to date on joining of high melting temperature materials, such as nickel (Ni) based superalloys have shown high forces between the tool and workpiece, which compromise tool life. In response to this, the NASA-Marshall Space Flight Center (MSFC) has developed an advanced, subscale Ultrasonically Assisted (UA) TSW prototype. Incorporating UA into either the shoulder or pin during a FSW has shown a reduction in forces using lower melting temperature aluminum (Al) alloys. However, further work is needed to demonstrate the combined effect of UA with the TSW process for high melting temperature materials. In response to this need, Keystone is submitting this Phase I SBIR proposal to demonstrate the combined effects of UA with TSW on a Ni based superalloy of interest to the NASA.

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_87661
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Datagov Dedupe Retained 20190501230127
Harvest Object Id ac1ee736-99ed-4aae-b88d-6880f049ff4b
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2015-12-01
Homepage URL
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash b5b9a342b7ed636396208604090ed72b1fe7c1d0
Source Schema Version 1.1

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