A study of an arc sensor model for gas metal arc welding with rotating arc - Part 1: dynamic simulation of wire melting

A dynamic wire melting phenomenon is found in rotating arc welding since self-regulation of the arc length is not fully performed. Consequently welding current and electrode extension vary rapidly in high speed rotating arc operation. This paper presents the dynamic simulation of wire melting by using the variable space network method and by modelling the heat flux from the molten end of the wire into the electrode. The simulations are compared with experimental results from other references to show a fairly good agreement. By using simulation analyses, it is clarified how the characteristics of the welding power source affect the sensitivity of the arc sensor.
Publisher
PROFESSIONAL ENGINEERING PUBLISHING LTD
Issue Date
2001
Language
ENG
Keywords

HEAT-TRANSFER; ELECTRODE

Citation

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE, v.215, no.9, pp.1271 - 1279

ISSN
0954-4054
URI
http://hdl.handle.net/10203/84642
Appears in Collection
ME-Journal Papers(저널논문)
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