The influence of CO<sub>2</sub>and O<sub>2</sub>content on globular spray transition current when using argon-based blends in GMAW of ER 70S 6 wire

Resende, André Alves de; Keocheguerians, Flávio; Vilarinho, Louriel Oliveira

doi:10.1080/09507110903568828

Welding International

2010

DOI: 10.1080/09507110903568828

|View full text |Cite

The influence of CO₂and O₂content on globular spray transition current when using argon-based blends in GMAW of ER 70S 6 wire

André Alves de Resende

Flávio Keocheguerians²,

Louriel Oliveira Vilarinho

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2021

2024

Publication Types

Select...

Article3

Relationship

Self Cite0

Independent3

Authors

Journals

Cited by 3 publications

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Effect of oxygen in shielding gas on weldability in plasma-GMA hybrid welding process of high-tensile strength steel

Trinh,

Tashiro,

Suga

et al. 2024

Int J Adv Manuf Technol

View full text Add to dashboard Cite

This study aims to clarify the effect of oxygen in shielding gas on weldability in the plasma-GMA (Gas Metal Arc) hybrid welding process of high-tensile strength steel plates. The difference in keyhole profile and bead formation, when the GMA shielding gas was pure Ar, Ar + 2% O2, or Ar + 20% CO2, was investigated for plate thicknesses of 6 and 9 mm for the first time. It was found that the weld beads were in good condition for 6 mm thickness plates for all shielding gases, which implied that the window of welding conditions for this thickness is wide. In contrast, for 9 mm thickness plates, a fully penetrated weld bead was achieved only in Ar + 20% CO2, and weld bead penetration in Ar + 20% CO2 is higher than in pure Ar and Ar + 2% O2 in the same welding condition. Due to decreased surface tension caused by sufficiently increased oxygen absorbed into the weld pool, the keyhole diameter increased to penetrate the bottom side of the plate, and the depressing weld pool surface under GMA allowed the heat input from the GMA to be directly applied to a deeper position. Consequently, the plasma-GMA hybrid welding process with Ar + 20% CO2 achieved a complete penetration for a plate of 9 mm thickness, owing to the effects of both phenomena. It proved a potential to increase penetrability in welding thicker plates by controlling oxygen content in shielding gas of GMA adequately.

show abstract

Effect of oxygen in shielding gas on weldability in plasma-GMA hybrid welding process of high-tensile strength steel

Trinh,

Tashiro,

Suga

et al. 2024

Int J Adv Manuf Technol

View full text Add to dashboard Cite

show abstract

Eligible CO2 content in Ar-CO2 mixture shielding gas for improving metal transfer in metal-cored arc welding

Trinh,

Tashiro,

et al. 2024

International Journal of Heat and Mass Transfer

View full text Add to dashboard Cite

Effect of alternating shielding gases in gas metal arc welding of SA515 Gr 70 carbon steel

Murugesan¹,

Parthasarathi

Ravindran³

et al. 2021

Mater. Res. Express

View full text Add to dashboard Cite

The influence of alternating shielding gas on fusion characteristics and weld metal characteristics was examined using a solid wire electrode on SA515Gr 70 carbon steel (ER70S). To improve the efficiency of the traditional GMAW process, two shielding gases of Argon and CO2 were supplied independently to the GMAW torch using a gas alternator unit with a predetermined frequency to the weld area. The weld quality was found to be improved by the periodic variation of the arc. The weld pool dynamics got refined by the enhanced thermo physical properties driven by the alternating shielding gases. Based on the results of the bead on plate welding trial, optimal welding conditions were chosen to construct a single V groove butt-joint weld to characterize its strength and toughness. The alternating shielding gases delivered excellent outcomes in terms of weld bead geometry and mechanical properties in this investigation.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

The influence of CO₂and O₂content on globular spray transition current when using argon-based blends in GMAW of ER 70S 6 wire

Cited by 3 publications

References 4 publications

Effect of oxygen in shielding gas on weldability in plasma-GMA hybrid welding process of high-tensile strength steel

Effect of oxygen in shielding gas on weldability in plasma-GMA hybrid welding process of high-tensile strength steel

Eligible CO2 content in Ar-CO2 mixture shielding gas for improving metal transfer in metal-cored arc welding

Effect of alternating shielding gases in gas metal arc welding of SA515 Gr 70 carbon steel

Contact Info

Product

Resources

About

The influence of CO2and O2content on globular spray transition current when using argon-based blends in GMAW of ER 70S 6 wire

Cited by 3 publications

References 4 publications

Effect of oxygen in shielding gas on weldability in plasma-GMA hybrid welding process of high-tensile strength steel

Effect of oxygen in shielding gas on weldability in plasma-GMA hybrid welding process of high-tensile strength steel

Eligible CO2 content in Ar-CO2 mixture shielding gas for improving metal transfer in metal-cored arc welding

Effect of alternating shielding gases in gas metal arc welding of SA515 Gr 70 carbon steel

Contact Info

Product

Resources

About

The influence of CO₂and O₂content on globular spray transition current when using argon-based blends in GMAW of ER 70S 6 wire