Open AccessMelting dynamics of electrodes, additive materials in welding
Author(s) -
V. L. Fedyaev,
Э Р Галимов,
A. V. Belyaev,
Liliya Sirotkina
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/971/2/022084
Subject(s) - welding , electrode , materials science , joule heating , composite material , plasma arc welding , electric resistance welding , arc welding , current (fluid) , gas metal arc welding , heat affected zone , metallurgy , mechanics , electrical engineering , chemistry , engineering , physics
We consider electric arc, electroslag welding with a consumable electrode, as well as other types of welding (gas, plasma, etc.) using rod filler materials. Two schemes of the corresponding type of welding are distinguished - the first, when an electrode has a finite length, the location of the current lead relative to it is stationary. In the second case, the electrode moves relative to the place of current supply in such a way that the length of the part of the electrode from its end to the place of current supply during welding varies little. A number of assumptions are made, a mathematical description of the heating and melting of the electrodes, filler materials due to the heat of the welding sources, and ohmic resistance is presented. Relations are given for estimating the temperature distribution along the length of an electrode, filler rods, and their melting rate.