Results 11 to 20 of about 31,753 (231)

High-power and ultra-efficient operation of a 946nm Nd:YAG planar waveguide laser [PDF]

, 2009
A high-power and ultra-efficient 946nm Nd:YAG double-clad planar waveguide laser is reported. The laser produced 35W of output for 68W of incident pump power with a corresponding slope efficiency of 57%
Meissner, H.E., J. I. Mackenzie, Mackenzie, J.I., H. E. Meissner   +3 more
core   +1 more source

Analysis of hybrid Nd:Yag laser-MAG arc welding processes. [PDF]

, 2011
In the hybrid laser-arc welding process, a laser beam and an electric arc are coupled in order to combine the advantages of both processes: high welding speed, low thermal load and high depth penetration thanks to the laser; less demanding on joint ...
F. Coste, E. Le Guen, P. Le Masson, COSTE, Frédéric, LE MASSON, Philippe, M. Carin, LE GUEN, Emilie, FABBRO, Rémy, CARIN, Muriel, R. Fabbro   +9 more
core   +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 ...
BANNOUR, Sana, MASSE, Jean-Eric, AUTRIC, Michel, K. Abderrazak, ABDERRAZAK, Kamel, J. E. Masse, H. Mhiri, S. Bannour, MATTEI, Simone, S. Mattei, M. Autric, MHIRI, Hatem   +11 more
core   +1 more source

Interstitial laser therapy of benign prostatic hyperplasia [PDF]

, 1999
The objective of interstitial laser coagulation (ILC) of benign prostatic enlargement is to achieve a marked volume reduction and to decrease bladder outlet obstruction and lower urinary tract symptoms with minimal morbidity.
Muschter, Rolf, Whitfield, Hugh
core   +1 more source

Melt Pool and Keyhole Behavior Analysis for Deep Penetration Laser Welding [PDF]

, 2010
One usually defines the main characteristic of the welding performances of a given laser system by its “penetration curve” that corresponds to the welding depth as a function of the welding speed Vw for a given set of operating parameters.
R Fabbro, Fabbro, R, FABBRO, Rémy
core   +1 more source

Direct keyhole laser welding of aluminum alloy AA5754 to titanium alloy Ti6Al4V [PDF]

, 2014
The tensile strength of direct AA5754/Ti6Al4V joints performed by high speed Yb:YAG laser welding is found to be determined by morphology and phase content of dissimilar interface formed between contacting Al-rich and Ti-rich melted zones. Three types of
CICALA, E, Tomashchuk, I, PEYRE, Patrice, Sallamand, P, SALLAMAND, Pierre, TOMASHCHUK, Iryna, GREVEY, D   +6 more
core   +1 more source

Optimization of tensile strength of ferritic / austenitic laser welded components [PDF]

, 2008
Ferritic/Austenitic (F/A) joints are a popular dissimilar metals combination used in many applications. F/A joints are usually produced using conventional processes.
Anawa, E., Olabi, Abdul-Ghani, A.G. Olabi, E.M. Anawa   +3 more
core   +1 more source

Effect of CO2 laser cutting process parameters on edge quality and operating cost of AISI316L [PDF]

, 2012
Laser cutting is a popular manufacturing process utilized to cut various types of materials economically. The width of laser cut or kerf, quality of the cut edges and the operating cost are affected by laser power, cutting speed, assist gas pressure ...
T. Inoue, Hagino, M., Olabi, Abdul-Ghani, A.G. Olabi, Eltawahni, Hayat, K.Y. Benyounis, H.A. Eltawahni, Benyounis, Khaled, Inoue, T., M. Hagino   +9 more
core   +1 more source

Prediction of Surface Topography Parameters in Direct Laser Interference Patterning of Stainless Steel Using Infrared Monitoring and Convolutional Neural Networks

Advanced Engineering Materials, EarlyView.
This study presents an infrared monitoring approach for direct laser interference patterning (DLIP) combined with a convolutional neural network (CNN). Thermal emission data captured during structuring are used to predict surface topography parameters.
Lukas Olawsky, Marcelo Sallese, Leander Kläber, Clemens Kuhn, Keming Du, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines

Advanced Engineering Materials, EarlyView.
Three CoNiCrAlY/YSZ/MgAl2O4 abradable liner configurations on a nickel‐superalloy are evaluated by thermal‐gradient cycling and incursion tests. Laser ablation of the bondcoat and/or Y2O3‐stabilized ZrO2 (YSZ) intermediate layer increases mechanical interlocking and bonding for thick topcoats.
Hanna Heyl, Daniel Emil Mack, Martin Tandler, Susanne Schrüfer, Robert Vaßen   +4 more
wiley   +1 more source