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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 11    No. 3    June 2001

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New model of body force in electromagnetic
stirring gas tungsten-arc welding
LUO Jian(罗 键)

Welding Engineering Institute,
Shanghai Jiaotong University, Shanghai 200030, P.R.China

Abstract:   After measuring arc electrical current density distribution in gas tungsten-arc welding(GTAW) with a probe method, the new expression of body force and model of LD10CS aluminum alloy weld pool are put forward for the first time in GTAW with additional longitudinal magnetic field controlling. The influence of additional longitudinal magnetic field on body force is discussed by electromagnetic principle. This study provides the basis to study fluid flow of the weld pools and arc welding technique with electromagnetic controlling.

 

Key words:   GTAW; body force; model; longitudinal magnetic field; weld pool

ISSN 1672-7029
CN 43-1423/U

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