Results 81 to 90 of about 2,153 (189)

Improved productivity in fusion welding : executive summary [PDF]

open access: yes
This document is an Executive Summary of individual submissions of work that the author has submitted towards the degree of Engineering Doctorate. The work comprises three main themes, which can be demonstrated in a broader sense as contributing ...
Howse, D. S.
core  

Investigation of conduction to keyhole mode transition [PDF]

open access: yes, 2012
There are two very distinct welding modes in laser welding, keyhole and conduction mode. The characteristics of keyhole laser welding; mainly high penetration, high productivity and high aspect ratio have led the industry to focus more on this mode.
Goncalves Assuncao E   +1 more
core  

Parameter Influence in CO2-laser/MIG Hybrid Welding [Elektronisk resurs]

open access: yes, 2003
Hybrid welding, as the combination of laser beam and arc welding, is an innovative joining technology that has many advantages compared to the single processes.
Heimbs, Sebastian,   +3 more
core  

Real time evaluation of weld quality in narrow groove pipe welding [PDF]

open access: yes, 2012
With the growth in pipeline installations all over the world, there is a great demand for highly productive and robust welding systems. Mechanised pipe welding has been developed over the last 50 years and the present focus is towards development of ...
Marmelo, Patricia C.
core  

Hybrid laser-MIG/MAG welding at ISI

open access: yes, 2023
Laser welds usually suffer from underfill defects because the welding is usually made without a filler wire. During the hybrid laser-MIG/MAG welding, the laser beam forms the melt pool, and the arc simultaneously delivers melted filler wire. The synergic
Mrňa, Libor
core  

Interaction time and beam diameter effects on the conduction mode limit [PDF]

open access: yes, 2012
Laser welding has two distinctive modes: keyhole and conduction mode. Keyhole mode is characterized by deep penetration and high welding speeds, while conduction mode has higher quality welds with no defects or spatter.
Assunção, Eurico   +2 more
core   +1 more source

Evaluation of gas metal arc welding with alterating shielding gases for use on AA6082T6

open access: yes, 2012
Studies have been carried out to determine the effects of implementing alternating shielding gases for 6082T6 aluminium alloy welding. Alternating shielding gases is a newly developed method of supplying shielding gases to the weld area to enhance the ...
Gillies, Andrew   +3 more
core   +1 more source

Hybrid laser-MIG welding of steels for the energy industry

open access: yes, 2023
Laser-MIG welding can lead to the heterogeneity in the weld metal. A weld root's chemical composition corresponds to the base metal, while the face is formed dominantly by the filler wire that can have a different chemical composition.
Mrňa, Libor
core  

Crack propagation behavior of laser-MIG hybrid welded joints in 6005 aluminum alloy

open access: yesHanjie xuebao
The fatigue crack propagation behavior of laser-MIG hybrid welded joints in 6005A-T6 aluminum alloy is studied. Digital image correlation (DIC) technology is employed to capture the local displacement field near the crack tip during testing, enabling a ...
Ke LYU   +5 more
doaj   +1 more source

Analysis of Weld Formation Mechanism and Weld Pool Dynamic during Moving Laser-MIG Hybrid Welding

open access: yes, 2010
In order to better understand heat transfer and fluid flow pattern in the weld pool of laser-metal inert gas (MIG) hybrid welding aluminum-alloy process, weld formation mechanism and weld pool dynamic behavior were analyzed by a three-dimensional ...
Zhi Guo Gao
core   +1 more source

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