Results 11 to 20 of about 3,968,903 (188)

High-Speed GMAW and Laser GMAW Hybrid Welding of Steel Sheet [PDF]

open access: yes, 2009
Arc welding is the most widely used set of joining technologies in industry today. The automotive tier supplier network and light manufacturing are significant users of arc welding, particularly gas metal arc welding (GMAW) and pulsed GMAW (GMAW-P ...
Harris, I. D.
core   +7 more sources

Advances in Gas Metal Arc Welding and Application to Corrosion Resistant Alloy Pipes [PDF]

open access: yes, 2010
According to recent estimations, the construction of pipelines will continue to increase during the next thirty years, in particular as a result of oil and gas discoveries in remote locations.
da Costa Pépe, Nuno Vasco
core   +7 more sources

Arc-based sensing in narrow groove pipe welding [PDF]

open access: yes, 2006
Big gains in productivity are found in tandem and dual tandem pipeline welding but require highly skilled operators who have to control the position of the torch very accurately for long periods. This leads to high demands on the skills and stamina of
Gil Teixeira Lopes, Agostinho
core   +7 more sources

Effects of Active Gases on Droplet Transfer and Weld Morphology in Pulsed-Current NG-GMAW of Mild Steel

open access: yesChinese Journal of Mechanical Engineering, 2021
The current research of narrow-gap gas metal arc welding (NG-GMAW) primarily focuses on improving the sidewall fusion and avoiding the lack-of-fusion defect. However, the high cost and operation difficulty of the methods limit the industrial application.
Guoqiang Liu   +4 more
doaj   +1 more source

Frequency of Radiologic Bronchiolocentric Interstitial Pneumonia Patterns and Associated Factors in Welders. [PDF]

open access: yesCan Respir J
Background Bronchiolocentric interstitial pneumonia (BIP) is an airway‐centered pattern observed in various interstitial lung diseases. This study aimed to evaluate the clinical, occupational, and radiological factors associated with the frequency of the BIP pattern on HRCT in welders. Methods In this retrospective cross‐sectional study, an operational
Hasanlı YS, Candemir İ, Aktürk Y.
europepmc   +2 more sources

A computational fluid dynamic analysis of the effect of weld nozzle geometry changes on shielding gas coverage during gas metal arc welding [PDF]

open access: yes, 2013
Three geometry changes to the inner bore of a welding nozzle and their effects on weld quality during gas metal arc welding (GMAW) were investigated through the use of computational fluid dynamic (CFD) models and experimental trials. It was shown that an
Campbell, Stuart   +3 more
core   +4 more sources

Investigation on the Dynamic Behavior of Weld Pool and Weld Microstructure during DP-GMAW for Austenitic Stainless Steel

open access: yesMetals, 2020
The influence of heat and droplet transfer into weld pool dynamic behavior and weld metal microstructure in double-pulsed gas metal arc welding (DP-GMAW) was investigated by the self-designed high-speed welding photography system. The heat input, the arc
Tao Chen   +5 more
doaj   +1 more source

Comparison of Properties and Bead Geometry in MIG and CMT Single Layer Samples for WAAM Applications

open access: yesMetals, 2021
The process of Wire Arc Additive Manufacturing (WAAM) utilizes arc welding technology to fabricate metallic components by depositing material in a selective layered fashion.
Harley Stinson   +3 more
doaj   +1 more source

Improved productivity by reduced variation in gas metal arc welding (GMAW) [PDF]

open access: yesThe International Journal of Advanced Manufacturing Technology, 2017
The purpose of the research conducted is to describe the consequences of variation in the welding industry and the effect it has on manufacturing productivity. The potential has shown to be hidden in unnecessarily stringent requirements and over-processing. This has been studied in steps: customer requirements, design and analysis, preparation, welding,
Anna Ericson Öberg, Erik Åstrand
openaire   +1 more source

Mechanical properties and microstructural characteristics of rotating arc-gas metal arc welded carbon steel joints

open access: yesJournal of the Mechanical Behavior of Materials, 2021
The main problem associated with high thickness carbon steel plate's narrow range or “V” groove welding in conventional welding processes is the sagging of the molten pool due to gravity, which in turn leads to defects formation and deteriorates ...
Sankar Nallasamy   +2 more
doaj   +1 more source

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