The Paton Welding Journal, 2010, №05



2010 №05 (04)

2010 №05 (06)

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TPWJ, 2010, #5, 23-26 pages
 
INFLUENCE OF WORKING DISTANCE OF WELDING ELECTRON GUN ON WELD GEOMETRY


Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                       0957-798X (print)
Issue                       № 5, 2010 (May)
Pages                      23-26
 
 
Authors
O.K. NAZARENKO and V.I. ZAGORNIKOV
E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
 
 
Abstract
Geometry of electron beam penetrations in a wide range of gun to workpiece distances was experimentally studied. A weak correlation was established between the gun to workpiece distance and penetration depth in thick metals. The possibility of substantially increasing of working distance without a marked change in the penetration parameters is attributable to a corresponding decrease of the convergence angle of the beam within the workpiece region.
 
 
Keywords: electron beam gun, welding gun, working distance, weld depth, focal point, angle of beam convergence
 
 
Received:                ??.??.??
Published:               28.05.10
 
 
References
1. Menhard, C., Loewer, T. (2009) The electron beam geometry - definition, measurement and significance for the welding process. Welding and Cutting, 8(3), 138-142.
2. Mladenov, G., Koleva, E. (2007) Evaluation and some applications of the electron beam emittance. In: Proc. of 7^th Int. Conf. on Beam Technology (17-19 April 2007, Halle, Germany), 85-92.
3. Der-Shvarts, G.V. (1971) To calculation of spherical aberration of axisymmetric magnetic lenses. Radiotekhnika i Elektronika, 7, 1305-1306.
4. Nazarenko, O.K., Kajdalov, A.A., Kovbasenko, S.N. et al. (1987) Electron beam welding. Ed. by B.E. Paton. Kiev: Naukova Dumka.
5. Bas, E.B., Cremosnik, G., Lerch, H. (1962) Beitrag zum Problem der Erzeugung des Elektronenstrahles fuer Schmelzen. Verdampfen, Schweissen und Rohren mit Elektronenstrahlen: Schweizer Archiv fuer angewandte Wissenschaft und Technik, 112-121.

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