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Influence of Shielding Gas on Fume Size Morphology and Particle Composition for Gas Metal Arc Welding

Journal Article


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Abstract


  • Shielding gas is an important parameter in Gas Metal Arc Welding (GMAW). Nevertheless, the influence

    of shielding gas on particle composition and size distribution of welding aerosols is not clearly understood. Increasing the O2 or CO2 content of Ar-based shielding gases resulted in an increase in the average particle size. For binary and ternary Ar, CO2, O2 mixtures, increasing CO2 had a greater impact than raising O2 on particle size. Variations in ArHeCO2 mixtures had the least influence. For 100% CO2, the particle size distribution was altered significantly due to the change of the weld transfer mode to globular and particle size coarsened with increasing arc voltage. Shielding gas composition had no observable influence on particle composition and only a slight variation of composition with particle size was observed. Particles were identified as (Fe,Mn)3O4 with trace additions of Si.

Publication Date


  • 2008

Citation


  • Carpenter, K. R., Monaghan, B. J. & Norrish, J. (2008). Influence of Shielding Gas on Fume Size Morphology and Particle Composition for Gas Metal Arc Welding. Iron and Steel Institute of Japan (ISIJ) International, 28 (11), 1570-1576.

Scopus Eid


  • 2-s2.0-59649084649

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2277&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/1236

Number Of Pages


  • 6

Start Page


  • 1570

End Page


  • 1576

Volume


  • 28

Issue


  • 11

Place Of Publication


  • http://www.isij.or.jp/e_index.htm

Abstract


  • Shielding gas is an important parameter in Gas Metal Arc Welding (GMAW). Nevertheless, the influence

    of shielding gas on particle composition and size distribution of welding aerosols is not clearly understood. Increasing the O2 or CO2 content of Ar-based shielding gases resulted in an increase in the average particle size. For binary and ternary Ar, CO2, O2 mixtures, increasing CO2 had a greater impact than raising O2 on particle size. Variations in ArHeCO2 mixtures had the least influence. For 100% CO2, the particle size distribution was altered significantly due to the change of the weld transfer mode to globular and particle size coarsened with increasing arc voltage. Shielding gas composition had no observable influence on particle composition and only a slight variation of composition with particle size was observed. Particles were identified as (Fe,Mn)3O4 with trace additions of Si.

Publication Date


  • 2008

Citation


  • Carpenter, K. R., Monaghan, B. J. & Norrish, J. (2008). Influence of Shielding Gas on Fume Size Morphology and Particle Composition for Gas Metal Arc Welding. Iron and Steel Institute of Japan (ISIJ) International, 28 (11), 1570-1576.

Scopus Eid


  • 2-s2.0-59649084649

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2277&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/1236

Number Of Pages


  • 6

Start Page


  • 1570

End Page


  • 1576

Volume


  • 28

Issue


  • 11

Place Of Publication


  • http://www.isij.or.jp/e_index.htm