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Prolegomena to the study of friction stir welding
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Nunes Jr., Arthur C. |
| Copyright Year | 2010 |
| Description | The literature contains many approaches toward modeling of the friction stir welding (FSW) process with varying treatments of the weld metal properties. It is worthwhile to consider certain fundamental features of the process before attempting to interpret FSW phenomena: Because of the unique character of metal deformation (as opposed to, say, viscous deformation) a velocity "discontinuity" or shear surface occurs in FSW and determines much of the character of the welding mechanism. A shear surface may not always produce a sound bond. Balancing mechanical power input against conduction and convection heat losses yields a relation, a "temperature index", between spindle speed and travel speed to maintain constant weld temperature. But many process features are only weakly dependent upon temperature. Thus, unlike modeling of metal forming processes, it may be that modeling the FSW process independently of the material conditions has some merit. |
| File Size | 310540 |
| Page Count | 17 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20100042505 |
| Archival Resource Key | ark:/13960/t3jx3c00k |
| Language | English |
| Publisher Date | 2010-10-17 |
| Access Restriction | Open |
| Subject Keyword | Forming Techniques Joints Junctions Balancing Deformation Welding Friction Stir Welding Metal Working Spindles Convection Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
