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Modelling of the Heat Flux Density Distribution for Laser Beam Welding

Abstract

Great interest of the laser beam welding in industry is a new theoretical task, making planning the welding procedure specification and the quality control of welded joints easier. Estimating and calculating the dimensions of a weld pool and temperature distribution near weld mainly concern heat source modelling. In the presented work calculations of welding pool shape and thermal field for cylindrical-powered-normally model of heat source have been presented. Parameters of the model of heat source and weld pool geometry were determined using analytical-numerical calculations. The results of numerical calculations were compared with the experimental data for butt joint made by CO2 laser beam. Comparable results have been observed. Practical recommendations for assumptions of model parameters - the flux density energy distribution of the heat source in case of calculations of the thermal field in the vicinity of a weld pool are given.

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Category:
Articles
Type:
artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
Published in:
Solid State Phenomena no. 183, pages 241 - 248,
ISSN: 1012-0394
Language:
English
Publication year:
2011
Bibliographic description:
Marmołowski A., Kiełczyński W.: Modelling of the Heat Flux Density Distribution for Laser Beam Welding// Solid State Phenomena. -Vol. 183., (2011), s.241-248
Verified by:
Gdańsk University of Technology

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