The Paton Welding Journal, 2009, №10



2009 №10 (01)

2009 №10 (03)

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TPWJ, 2009, #10, 12-16 pages  
MECHANICAL IMPACT OF GAS FLOW ON THE SURFACE OF PENETRATION CHANNEL WALLS IN GAS-LASER CUTTING


Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                       0957-798X (print)
Issue                       № 10, 2009 (October)
Pages                      12-16
 
 
Authors
I.V. SHUBA
E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
 
 
Abstract
The paper deals with the features of assist gas flow in gas-laser cutting of 10 mm steel plates. It is established that distribution of tangential stresses on the melt surface depends on the position of the gas jet axis relative to the entrance face of the penetration channel. The possibility of ensuring a uniform distribution of tangential stresses on the melt surface in a broad range of working gas excess pressure is shown.
 
 
Keywords: gas-laser cutting, steel, gas jet, excess pressure, penetration channel, melt surface, tangential stresses
 
 
Received:                26.01.09
Published:               28.10.09
 
 
References
1. Steen, W.M., Kamalu, J.N. (1983) Laser cutting. London Imperial College of Science and Technology.
2. Golubev, V.S. (2005) Analysis of dynamic models of deep penetration of materials by laser beam. In: RAN IPLIT Transact. Ed. by V.Ya. Panchenko, V.S. Golubev. Moscow: Interkontakt Nauka.
3. Grigoriants, A.G., Sokolov, A.A. (1988) Laser cutting of metals. Series: Laser technique and technology. Book 7. Moscow: Vysshaya Shkola.
4. Kutateladze, S.S., Nakoryakov, V.E. (1984) Heat and mass exchange and waves in gas-liquid systems. Novosibirsk: Nauka. 5. http:www.rhino3d.com

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