CO2-GMA hybrid welding of carbon steel: The effect of shielding gas composition

A. Fellman; P. Jernström; Veli Kujanpää

doi:10.2351/1.5060046

CO₂-GMA hybrid welding of carbon steel: The effect of shielding gas composition

A. Fellman, P. Jernström, Veli Kujanpää

Lappeenranta-Lahti University of Technology LUT

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

17 Citations (Scopus)

Abstract

Metal industry producing large structures is nowadays very interested in hybrid welding processes. That isn’t a surprise, as the process has many advantages compared to the conventional welding methods. One of the major benefits is the reduction in deformations. That reduces the post-work needed and makes the assembly easier since the hybrid welded parts are more accurate. Another advantage of hybrid welding is that it allows much wider groove tolerances compared to laser welding. In addition, with filler metal the composition can be balanced, if metallurgical factors are critical.
In this study CO₂-GMA hybrid welding process was used. The aim was to clarify the effects of shielding gas composition on welding performance, weld profile and quality in hybrid welding of carbon steel. Shielding gases used consisted of helium, argon and carbon dioxide. Joint types used were butt and T-butt joints.
The research revealed that the composition of shielding gas affects welding performance, weld quality and penetration profile in CO₂-GMA hybrid welding of carbon steel. Hybrid welds of a good quality can be produced with many different shielding gas compositions, but if the productivity, low gas costs, reliability of the process and high quality are desired, the shielding gas composition does make a difference in hybrid welding of carbon steel.

Original language	English
Title of host publication	ICALEO 2003: 22nd International Congress on Laser Materials Processing and Laser Microfabrication
Publisher	Laser Institute of America
ISBN (Print)	978-0-912035-75-8
DOIs	https://doi.org/10.2351/1.5060046
Publication status	Published - 2003
MoE publication type	A4 Article in a conference publication
Event	22nd International Congress on Laser Materials Processing and Laser Microfabrication ICALEO 2003 - Jacksonville, United States Duration: 13 Oct 2003 → 16 Oct 2003

Conference

Conference	22nd International Congress on Laser Materials Processing and Laser Microfabrication ICALEO 2003
Country/Territory	United States
City	Jacksonville
Period	13/10/03 → 16/10/03

Keywords

welding

Access to Document

10.2351/1.5060046

Cite this

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title = "CO2-GMA hybrid welding of carbon steel: The effect of shielding gas composition",

abstract = "Metal industry producing large structures is nowadays very interested in hybrid welding processes. That isn{\textquoteright}t a surprise, as the process has many advantages compared to the conventional welding methods. One of the major benefits is the reduction in deformations. That reduces the post-work needed and makes the assembly easier since the hybrid welded parts are more accurate. Another advantage of hybrid welding is that it allows much wider groove tolerances compared to laser welding. In addition, with filler metal the composition can be balanced, if metallurgical factors are critical.In this study CO2-GMA hybrid welding process was used. The aim was to clarify the effects of shielding gas composition on welding performance, weld profile and quality in hybrid welding of carbon steel. Shielding gases used consisted of helium, argon and carbon dioxide. Joint types used were butt and T-butt joints.The research revealed that the composition of shielding gas affects welding performance, weld quality and penetration profile in CO2-GMA hybrid welding of carbon steel. Hybrid welds of a good quality can be produced with many different shielding gas compositions, but if the productivity, low gas costs, reliability of the process and high quality are desired, the shielding gas composition does make a difference in hybrid welding of carbon steel.",

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author = "A. Fellman and P. Jernstr{\"o}m and Veli Kujanp{\"a}{\"a}",

year = "2003",

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booktitle = "ICALEO 2003: 22nd International Congress on Laser Materials Processing and Laser Microfabrication",

publisher = "Laser Institute of America",

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note = "22nd International Congress on Laser Materials Processing and Laser Microfabrication ICALEO 2003 ; Conference date: 13-10-2003 Through 16-10-2003",

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Fellman, A, Jernström, P & Kujanpää, V 2003, CO₂-GMA hybrid welding of carbon steel: The effect of shielding gas composition. in ICALEO 2003: 22nd International Congress on Laser Materials Processing and Laser Microfabrication., 308, Laser Institute of America, 22nd International Congress on Laser Materials Processing and Laser Microfabrication ICALEO 2003, Jacksonville, Florida, United States, 13/10/03. https://doi.org/10.2351/1.5060046

CO₂-GMA hybrid welding of carbon steel: The effect of shielding gas composition. / Fellman, A.; Jernström, P.; Kujanpää, Veli.
ICALEO 2003: 22nd International Congress on Laser Materials Processing and Laser Microfabrication. Laser Institute of America, 2003. 308.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

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T2 - 22nd International Congress on Laser Materials Processing and Laser Microfabrication ICALEO 2003

AU - Fellman, A.

AU - Jernström, P.

AU - Kujanpää, Veli

PY - 2003

Y1 - 2003

N2 - Metal industry producing large structures is nowadays very interested in hybrid welding processes. That isn’t a surprise, as the process has many advantages compared to the conventional welding methods. One of the major benefits is the reduction in deformations. That reduces the post-work needed and makes the assembly easier since the hybrid welded parts are more accurate. Another advantage of hybrid welding is that it allows much wider groove tolerances compared to laser welding. In addition, with filler metal the composition can be balanced, if metallurgical factors are critical.In this study CO2-GMA hybrid welding process was used. The aim was to clarify the effects of shielding gas composition on welding performance, weld profile and quality in hybrid welding of carbon steel. Shielding gases used consisted of helium, argon and carbon dioxide. Joint types used were butt and T-butt joints.The research revealed that the composition of shielding gas affects welding performance, weld quality and penetration profile in CO2-GMA hybrid welding of carbon steel. Hybrid welds of a good quality can be produced with many different shielding gas compositions, but if the productivity, low gas costs, reliability of the process and high quality are desired, the shielding gas composition does make a difference in hybrid welding of carbon steel.

AB - Metal industry producing large structures is nowadays very interested in hybrid welding processes. That isn’t a surprise, as the process has many advantages compared to the conventional welding methods. One of the major benefits is the reduction in deformations. That reduces the post-work needed and makes the assembly easier since the hybrid welded parts are more accurate. Another advantage of hybrid welding is that it allows much wider groove tolerances compared to laser welding. In addition, with filler metal the composition can be balanced, if metallurgical factors are critical.In this study CO2-GMA hybrid welding process was used. The aim was to clarify the effects of shielding gas composition on welding performance, weld profile and quality in hybrid welding of carbon steel. Shielding gases used consisted of helium, argon and carbon dioxide. Joint types used were butt and T-butt joints.The research revealed that the composition of shielding gas affects welding performance, weld quality and penetration profile in CO2-GMA hybrid welding of carbon steel. Hybrid welds of a good quality can be produced with many different shielding gas compositions, but if the productivity, low gas costs, reliability of the process and high quality are desired, the shielding gas composition does make a difference in hybrid welding of carbon steel.

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