Simulation of active shielding gas impact on heat distribution in the weld zone of consumable electrode welding

Author

Chinakhov, D.A. ; Vorobyov, A.V. ; Davydov, A.A. ; Tomchik, A.A.

Author_Institution

Yurga Institute of Technology of National Research Tomsk Polytechnic University, Yurga, Russia

fYear

2012

fDate

18-21 Sept. 2012

Firstpage

1

Lastpage

3

Abstract

The characteristics of heating processes determine fusion efficiency for base metal and filler material, direction and completeness of metallurgical processes in a welding pool, formation of weld metal structure and heat-affected zone, service properties of welded joints. Under certain conditions in consumable electrode welding with jet gas shield an electrode metal droplet and processes in the weld zone are influenced by the force of shielding gas jet besides the main forces. Significant influence of this force is noted in CO₂ double-jet gas shield. Basing on the research results it was determined that distribution of heat in the electrode, fused metal droplet, arc space, welding pool and parts being welded depends on the shape and velocity of active shielding gas flow.

Keywords

arc welding; drops; filler metals; heating; jets; metallurgical industries; shielding; welding electrodes; active shielding gas flow shape; active shielding gas flow velocity; active shielding gas impact simulation; arc space; base metal; carbon dioxide double-jet gas shield force; consumable electrode welding; electrode metal droplet fusion; filler material; fusion efficiency; heat distribution; heat-affected zone; heating process characteristics; metallurgical process completeness; metallurgical process direction; part welding; weld metal structure formation; welded joint service properties; welding pool zone; Computational modeling; Electrodes; Fluid flow; Heating; Joints; Metals; Welding; electrode metal transfer; gas-dynamic impact; heat distribution; welding processes;

fLanguage

English

Publisher

ieee

Conference_Titel

Strategic Technology (IFOST), 2012 7th International Forum on

Conference_Location

Tomsk

Print_ISBN

978-1-4673-1772-6

Type

conf

DOI

10.1109/IFOST.2012.6357711

Filename

6357711