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NASA Tech Briefs Index, 1977, volume 2, numbers 1-4 [PDF]

Announcements of new technology derived from the research and development activities of NASA are presented. Abstracts, and indexes for subject, personal author, originating center, and Tech Brief number are presented for ...

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Understanding the influence of different HLAW parameters to increase the welding speed of 8 mm thick structural steel

Journal of Materials Research and Technology
Hybrid Laser Arc Welding (HLAW) integrates laser beam welding (LBW) and gas metal arc welding (GMAW) within a common welding zone, creating synergistic effects.
J.M. Sánchez-Amaya +3 more
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Laser-Arc Hybrid Welding of Thin Steel Sheets

QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 2003
In recent years, laser welding has begun to be used for assembly welding of automotive bodies and parts, although it has not yet to be used widely. One restraint is that in laser lap welding, the gap between the lapped sheets must be controlled very tightly. If the gap is wide, burn-through occurs, and, if the gap is excessive, the two sheets cannot be
Moriaki ONO +3 more
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Multi-pass laser welding with cut-wire particles of 50 mm thick steel plates

Journal of Alloys and Metallurgical Systems
Multi-pass laser welding with filler wire feeding shows significant potential for welding thick plates. However, this method faces challenges due to the need for edge preparation and stringent control of parameters such as wire feed speed and the ...
Mohamed Wahba, Masami Mizutani, Seiji Katayama +2 more
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Modélisation du procédé de soudage hybride Arc / Laser par une approche level set application aux toles d'aciers de fortes épaisseurs A level-set approach for the modelling of hybrid arc/laser welding process application for high thickness steel sheets joining

MATEC Web of Conferences, 2013
Le procédé de soudage hybride Arc/Laser est une solution aux assemblages difficiles de tôles de fortes épaisseurs. Ce procédé innovant associe deux sources de chaleur : un arc électrique produit par une torche MIG et une source laser placée en amont.
Desmaison Olivier, Bellet Michel, Guillemot Gildas +2 more
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Laser Hybrid Butt Welding of Large Thickness Naval Steel

Metals, 2019
Plates joining is one of the first stage at large vessels manufacturing line, process conditioning the whole shipbuilding production. Laser Arc Hybrid Welding (LAHW) process is nowadays providing promising results for large thickness naval steel, being ...
Cristina Churiaque +5 more
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A Review of Welding in Space and Related Technologies [PDF]

Deployment of welding and additive manufacturing (AM) technologies in the space environment has the potential to revolutionize how orbiting platforms are designed, manufactured, and assembled.
Naden, N., Prater, T. J.
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Research Activities of JWRI [PDF]

, 2016
s of the ...

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Influence of welding sequences on residual stress and deformation of U-rib components fabricated by laser-arc hybrid welding

Journal of Materials Research and Technology
This paper aims to investigate the influence of welding sequences on welding induced residual stress and deformation of U-rib components fabricated by laser-arc hybrid welding through experimental and numerical methods.
Shaoning Geng +5 more
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Study on droplet transfer behavior and porosity defects in narrow-gap laser–arc hybrid welding of titanium alloy

Hanjie xuebao
In narrow-gap laser–arc hybrid welding, the droplet transfer behavior indirectly affects the formation of porosity defects by influencing the molten pool disturbance and keyhole stability.
Fashuai XIONG +6 more
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