Consistent Patterns of Change in Energetic and Fabrication Characteristics of Arcing in Inert Gas Mixtures
-
Published:2020-01-01
Issue:1
Volume:1443
Page:012013
-
ISSN:1742-6588
-
Container-title:Journal of Physics: Conference Series
-
language:
-
Short-container-title:J. Phys.: Conf. Ser.
Author:
Krasikov P P,Savinov A V,Polesskiy O A,Chudin A A,Lysak V I
Abstract
Abstract
The influence of the shielding gas composition and the non-consumable electrode construction on the total and effective efficiency of welding was studied. It was found that value total efficiency is at minimum at 25 % helium content and is increasing with the He concentration growth in the gas mixture. The alteration of arc force impact on the welded metal depending on the current rate, shielding gas composition and cathode processing history was demonstrated. It was found that the arcs with a focused cathode spot feature higher value of the integral forced impact on the welded metal, comparing to the arcs with a diffuse cathode spot, regardless the shielding gas composition.
Subject
General Physics and Astronomy
Reference9 articles.
1. Effect of the composition of the shielding gas and design of the non-consumable cathode on the penetrating capacity of the arc and formation of welded joints;Savinov;Svar. Proizvod.,2009
2. Effect of the composition of the shielding gas on the current density in the anode spot of a welding arc;Ivanova;Avt. Svarka,1977
3. TIG arc characteristics in different atmospheres;Marques;Revista de Metalurgia,1999
4. An introduction to physical phenomena in arc welding processes;Tanaka;Journal of the Japan Welding Society,2004