Results 31 to 40 of about 38,658 (264)

Evolution of bonding mechanism and fracture mechanism of Ti alloy-steel joint by dual-beam laser welding using Mg-RE (RE=Gd, Y) filler

Journal of Materials Research and Technology
In this paper, a novel coaxial continuous-pulsed dual-beam laser was proposed to join TC4 titanium alloy with QP980 high-strength steel, and magnesium alloy containing rare-earth elements (Mg-RE) was creatively as filler.
Nan li, Qiang Lang, Yuchen Dong, Chunchao Wang, Tao Li, Hongyang Wang, Liming Liu   +6 more
doaj   +1 more source

Acoustic process monitoring in laser beam welding

Procedia CIRP, 2020
Abstract Structure-borne acoustic emission (AE) measurement shows major advantages regarding quality assurance and process control in industrial applications. In this paper, laser beam welding of steel and aluminum was carried out under varying process parameters (welding speed, focal position) in order to provide data by means of structure-borne AE ...
Schmidt, Leander, Römer, Florian, Böttger, David, Leinenbach, Frank, Straß, Benjamin, Wolter, Bernd, Stricker, Klaus, Seibold, Marc, Bergmann, Jean Pierre, Galdo, Giovanni del   +9 more
openaire   +1 more source

Disk Laser Welding of Car Body Zinc Coated Steel Sheets / Spawanie Laserem Dyskowym Blach Ze Stali Karoseryjnej Ocynkowanej

Archives of Metallurgy and Materials, 2015
Autogenous laser welding of 0.8 mm thick butt joints of car body electro-galvanized steel sheet DC04 was investigated. The Yb:YAG disk laser TruDisk 3302 with the beam spot diameter of 200 μm was used.
Lisiecki A., Burdzik R., Siwiec G., Konieczny Ł., Warczek J., Folęga P., Oleksiak B.   +6 more
doaj   +1 more source

Laser Beam Welding of CubeSat 1U Structure Parts Obtained by Powder Bed Fusion

Metals, 2022
This study contributes to a possible methodology for manufacturing CubeSats using additive manufacturing and laser beam welding. Titanium connectors were constructed by selective laser melting and electron beam melting and characterized from a ...
Rafael Humberto Mota de Siqueira, Diego Javier Celentano, Milton Sergio Fernandes de Lima   +2 more
doaj   +1 more source

Silica suspension and coating developments for Advanced LIGO [PDF]

, 2006
The proposed upgrade to the LIGO detectors to form the Advanced LIGO detector system is intended to incorporate a low thermal noise monolithic fused silica final stage test mass suspension based on developments of the GEO 600 suspension design. This will
Acernese F, Araya A, Armandula H, Armandula H, Barr B W, Braginsky V B, Cagnoli G, Cantley C A, Cantley C A, Cantley C A, Coyne D, Crooks D R M, Crooks D R M, Cumming A, De Salvo R, Elliffe E, Fejer M M, Goßler S, Gregg Harry, Gretarsson A M, Harry G M, Harry G M, Harry G M, Hazel J, Heptonstall A, Hough J, Jones R, Mackowski J-M, Martin I, Mitrofanov V P, Murray P, Penn S D, Penn S D, Perreur-Lloyd M, Pinto I, Reid S, Robertson N A, Robertson N A, Route R, Rowan S, Sneddon P H, Strain K A   +41 more
core   +2 more sources

Laser Beam Welding of Brass

Physics Procedia, 2014
AbstractUp to date the evaporation process in laser beam welding of alloys with volatile elements is not completely understood. This paper discusses the phenomena occurring at the welding process of brass with 37m% zinc. Since copper has a solidification temperature of 1,087°C and zinc vaporizes at a temperature of 907°C, a strong evaporation takes ...
Hugger, Florian, Hofmann, Konstantin, Stein, Stefan, Schmidt, Michael   +3 more
openaire   +1 more source

The influence of position in overlap joints of Mg and Al alloys on microstructure and hardness of laser welds [PDF]

, 2013
Structure and properties of laser beam welding zone of dissimilar materials, AZ31 magnesium alloy and A5754 Aluminum alloy, are investigated. The microstructure and quality of the Mg/Al weld were studied by metallography, microhardness and optical ...
Fatih H., H. Mhiri, J. E. Masse, K. Abderrazak, M. Autric, Nakada K., Peng L., S. Bannour, S. Mattei, Stodolsky R., Yoo M. S.   +10 more
core   +6 more sources

Laser beam welding of any metal [PDF]

ICALEO '98: Proceedings of the Laser Materials Processing Conference, 1998
The effect of a metal’s thermophysical properties on its weldability are examined. The thermal conductivity, melting point, absorptivity and thermal diffusivity of the metal and the laser beam focused diameter and welding speed influence the minimum beam irradiance required for melting and welding.
K. H. Leong, H. K. Geyer
openaire   +1 more source

Adaptive optics for control of the laser welding process

EPJ Web of Conferences, 2013
The laser head with fixed focus optics is commonly used for the deep penetration laser welding. In such case the geometry and position of the beam waist are defined by the focusing lens.
Jedlička Petr, Řeřucha Šimon, Šarbort Martin, Mrňa Libor   +3 more
doaj   +1 more source

Grain refinement and laser energy distribution during laser oscillating welding of Invar alloy

Materials & Design, 2020
Laser oscillating welding method was employed to welding of Invar alloy so as to achieve grain refinement and decrease internal defects. Effects of frequency and amplitude of beam oscillation with sinusoidal trajectory on weld appearance and ...
Zhenguo Jiang, Xi Chen, Hao Li, Zhenglong Lei, Yanbin Chen, Shibo Wu, Yuhua Wang   +6 more
doaj   +1 more source