Laser plume evolution in the process of nanopowder preparation using an ytterbium fibre laser

2016 ◽  
Vol 46 (9) ◽  
pp. 821-828 ◽  
Author(s):  
V V Osipov ◽  
G S Evtushenko ◽  
V V Lisenkov ◽  
V V Platonov ◽  
A V Podkin ◽  
...  
Keyword(s):  
Fibre Laser ◽  
Laser Plume ◽  
Ytterbium Fibre Laser

Optimization of erbium-ytterbium fibre laser with simple double-clad structure

2006 ◽  
Author(s):  
Pavel Peterka ◽  
Ivan Kašík ◽  
Václav Kubeček ◽  
Vlastimil Matějec ◽  
Miloš Hayer ◽  
...  
Keyword(s):  
Fibre Laser ◽  
Ytterbium Fibre Laser

Passively cooled 405 W ytterbium fibre laser utilising a novel metal coated active fibre

2016 ◽  
Author(s):  
Jae M. O. Daniel ◽  
Nikita Simakov ◽  
Alexander Hemming ◽  
W. Andrew Clarkson ◽  
John Haub
Keyword(s):  
Fibre Laser ◽  
Ytterbium Fibre Laser ◽  
Active Fibre

scholarly journals Laser surface texturing of tool steel: textured surfaces quality evaluation

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Peter Šugár ◽  
Jana Šugárová ◽  
Martin Frnčík
Keyword(s):  
Laser Beam ◽  
Tool Steel ◽  
Surface Texturing ◽  
Scanning Speed ◽  
Laser Surface ◽  
Laser Surface Texturing ◽  
Fibre Laser ◽  
Textured Surfaces ◽  
Machined Surface ◽  
Ytterbium Fibre Laser

Abstract In this experimental investigation the laser surface texturing of tool steel of type 90MnCrV8 has been conducted. The 5-axis highly dynamic laser precision machining centre Lasertec 80 Shape equipped with the nano-second pulsed ytterbium fibre laser and CNC system Siemens 840 D was used. The planar and spherical surfaces first prepared by turning have been textured. The regular array of spherical and ellipsoidal dimples with a different dimensions and different surface density has been created. Laser surface texturing has been realized under different combinations of process parameters: pulse frequency, pulse energy and laser beam scanning speed. The morphological characterization of ablated surfaces has been performed using scanning electron microscopy (SEM) technique. The results show limited possibility of ns pulse fibre laser application to generate different surface structures for tribological modification of metallic materials. These structures were obtained by varying the processing conditions between surface ablation, to surface remelting. In all cases the areas of molten material and re-cast layers were observed on the bottom and walls of the dimples. Beside the influence of laser beam parameters on the machined surface quality during laser machining of regular hemispherical and elipsoidal dimple texture on parabolic and hemispherical surfaces has been studied.

Measurement Assurance of Additive Manufacturing on the Example of Laser Surface Polishing Products by Remelting

2021 ◽  
Vol 1037 ◽  
pp. 32-40
Author(s):  
Anastasia A. Kransutskaya ◽  
Vladislav A. Funtikov ◽  
Anthony B. Syritskii ◽  
Alexander S. Komshin
Keyword(s):  
Laser Surface ◽  
Fibre Laser ◽  
Contactless Method ◽  
Laser Remelting ◽  
Additive Technology ◽  
Laser Polishing ◽  
Measurement Assurance ◽  
Surface Polishing ◽  
Technological Complex ◽  
Ytterbium Fibre Laser

The article presents the results of studies of the surfaces of parts processed by the contactless method of laser polishing. The results of technological surface treatment using a laser technological complex based on an ytterbium fibre laser with a power of 5 kW are presented. The results of studies of the surface roughness of the samples after laser treatment, including the non-uniform character due to the redistribution of the liquid metal melt over the surface, are shown. Requirements for metrological support of additive technology have been developed using the example of the process of laser remelting in order to improve quality and further automation.

Erbium–ytterbium fibre laser emitting more than 13 W of power in 1.55 μm region

Pramana ◽  
2014 ◽  
Vol 82 (1) ◽  
pp. 143-146 ◽  
Author(s):  
SRIKANTH GURRAM ◽  
ANTONY KURUVILLA ◽  
RAJPAL SINGH ◽  
BLACIUS EKKA ◽  
B N UPADHYAY ◽  
...  
Keyword(s):  
Fibre Laser ◽  
Ytterbium Fibre Laser

A new approach to controlling the ytterbium fibre laser output power

2010 ◽  
Vol 40 (2) ◽  
pp. 111-114 ◽  
Author(s):  
V G Voronin ◽  
Oleg E Nanii ◽  
A A Sus'yan ◽  
V I Khlystov
Keyword(s):  
Output Power ◽  
Laser Output ◽  
Fibre Laser ◽  
Laser Output Power ◽  
New Approach ◽  
Ytterbium Fibre Laser

scholarly journals Surface oxidation of porous ZrB2-SiC ceramic composites by continuous-wave ytterbium fibre laser

2015 ◽  
Vol 357 ◽  
pp. 1982-1990 ◽  
Author(s):  
Dayang Salyani Abang Mahmod ◽  
Nicolas Glandut ◽  
Amir Azam Khan ◽  
Jean-Claude Labbe
Keyword(s):  
Continuous Wave ◽  
Surface Oxidation ◽  
Ceramic Composites ◽  
Fibre Laser ◽  
Sic Ceramic ◽  
Ytterbium Fibre Laser

Compression of femtosecond ytterbium fibre laser pulses using nonlinear processes in silica fibre

2018 ◽  
Vol 48 (5) ◽  
pp. 476-480
Author(s):  
N V Didenko ◽  
A V Konyashchenko ◽  
L L Losev ◽  
A V Tausenev ◽  
S Yu Tenyakov
Keyword(s):  
Laser Pulses ◽  
Fibre Laser ◽  
Nonlinear Processes ◽  
Ytterbium Fibre Laser ◽  
Silica Fibre
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