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Indexed by:期刊论文

Date of Publication:2011-09-01

Journal:OPTICS AND LASERS IN ENGINEERING

Included Journals:Scopus、SCIE、EI

Volume:49

Issue:9-10

Page Number:1224-1231

ISSN No.:0143-8166

Key Words:Interaction; Laser-arc hybrid welding; Laser; Arc plasma; Spectrum

Abstract:This paper presents the results of the investigation on the interactions between laser and arc plasma during laser-arc hybrid welding on magnesium alloy AZ31B using the spectral diagnose technique. By comparably analyzing the variation in plasma information (the shape, the electron temperature and density) of single tungsten inert gas (TIG) welding with the laser-arc hybrid welding, it is found that the laser affects the arc plasma through the keyhole forming on the workpiece. Depending on the welding parameters there are three kinds of interactions taking place between laser and arc plasma. (C) 2011 Elsevier Ltd. All rights reserved.