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2011 №06 (03) 2011 №06 (05)

The Paton Welding Journal 2011 #06
The Paton Welding Journal, 2011, #6, 13-17 pages  



E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
Model of the process of friction stir welding was used to study the influence of structural dimensions of working surfaces of tool shoulder and tip on the features of material displacement in the thermodynamic impact zone. It is shown that a permanent joint forms due to displacement of a certain amount of ductile material by the tool tip and its mixing across the entire thickness of edges. Shape of working surface of tool shoulder end face predetermines the displacement trajectory, movement speed, uniformity of mixing and degree of compaction of the materials being joined at solidification.
Keywords: friction stir welding, process modelling, mass transfer, tool tip design, shoulder working surface
Received:                ??.??.??
Published:               28.06.11
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