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2010 №10 (10) 2010 №10 (02)

The Paton Welding Journal 2010 #10
TPWJ, 2010, #10, 2-6 pages
 
ADEQUACY OF THERMOHYDRODYNAMIC MODEL OF THROUGH PENETRATION IN TIG AND A-TIG WELDING OF NIMONIC-75 NICKEL ALLOY


Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                       0957-798X (print)
Issue                       № 10, 2010 (October)
Pages                      2-6
 
 
Authors
D.V. KOVALENKO1, D.A. PAVLYAK2, V.A. SUDNIK2 and I.V. KOVALENKO1

1E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
2Tula State University, Tula, Russian Federation
 
 
Abstract
Results of experiments on weld formation in TIG and A-TIG welding of Nimonic-75 alloy, and results of computer simulation of the effect of convection on «sand glass» shape of weld are presented. The experiments were carried out with and without activating flux PATIG Nim-75-A on 3.15 mm thick plates. Adequacy of the model was evaluated by comparing the sizes of the real and simulated weld sections. The causes of recirculation flows were analyzed. Correlation of the experimental and computation data was revealed.
 
 
Keywords: TIG and A-TIG welding, nickel alloy, penetration, mathematical model, adequacy of mathematical model
 
 
Received:                ??.??.??
Published:               28.10.10
 
 
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