Ch. Kim et Sj. Na, A study of an arc sensor model for gas metal arc welding with rotating arc- Part 1: dynamic simulation of wire melting, P I MEC E B, 215(9), 2001, pp. 1271-1279
Citations number
21
Categorie Soggetti
Engineering Management /General
Journal title
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE
A dynamic wire melting phenomenon is found in rotating arc welding since se
lf-regulation of the arc length is not fully performed. Consequently weldin
g current and electrode extension vary rapidly in high speed rotating arc o
peration. This paper presents the dynamic simulation of wire melting by usi
ng the variable space network method and by modelling the heat flux from th
e molten end of the wire into the electrode. The simulations are compared w
ith experimental results from other references to show a fairly good agreem
ent. By using simulation analyses, it is clarified how the characteristics
of the welding power source affect the sensitivity of the arc sensor.