Laser powder bed fusion of glass: a comparative study between CO2 lasers and ultrashort laser pulses

2020 ◽  
Author(s):  
Brian Seyfarth ◽  
Lisa Schade ◽  
Gabor Matthäus ◽  
Tobias Ullsperger ◽  
Nils Heidler ◽  
...  
Keyword(s):  
Comparative Study ◽  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Powder Bed Fusion ◽  
Co2 Lasers ◽  
Laser Powder Bed Fusion ◽  
Powder Bed ◽  
Ultrashort Laser

Comparative study of time-resolved K-shell spectra from aluminum plasmas generated by ultrashort laser pulses at 395 and 790 nm

2002 ◽  
Vol 80 (2) ◽  
pp. 198-200 ◽  
Author(s):  
U. Andiel ◽  
K. Eidmann ◽  
K. Witte ◽  
I. Uschmann ◽  
E. Förster
Keyword(s):  
Comparative Study ◽  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Time Resolved ◽  
Ultrashort Laser

A comparative study of the effects of thermal treatments on AlSi10Mg produced by laser powder bed fusion

2020 ◽  
Vol 831 ◽  
pp. 154822 ◽  
Author(s):  
Elisa Padovano ◽  
Claudio Badini ◽  
Anna Pantarelli ◽  
Flavia Gili ◽  
Fabio D’Aiuto
Keyword(s):  
Comparative Study ◽  
Thermal Treatments ◽  
Powder Bed Fusion ◽  
Laser Powder Bed Fusion ◽  
Powder Bed

scholarly journals Superficial changes on the Inconel 600 superalloy by picosecond Nd:YAG laser operating at 1064, 532, and 266 nm: Comparative study

2012 ◽  
Vol 30 (2) ◽  
pp. 249-257 ◽  
Author(s):  
J. Stašić ◽  
B. Gaković ◽  
M. Trtica ◽  
T. Desai ◽  
L. Volpe
Keyword(s):  
Comparative Study ◽  
Nd:Yag Laser ◽  
Surface Damage ◽  
Laser Pulses ◽  
Laser Wavelength ◽  
Ultrashort Laser Pulses ◽  
Periodic Surface ◽  
Inconel 600 ◽  
Hydrodynamic Effects ◽  
Ultrashort Laser

AbstractA comparative study of superficial changes on the superalloy Inconel 600, induced by a picosecond Nd:YAG laser operating at 1064, 532, and 266 nm, is presented. All of the laser wavelengths, as well as the used fluences of 2.5 (1064 nm), 4.3 (532 nm), and 0.6 J/cm2 (266 nm) were found to be adequate for inducing surface variations. Quite different surface features were produced depending on the laser wavelength used. The measured surface damage thresholds were 0.25, 0.13 and 0.10 J/cm2 for 1064, 532, and 266 nm, respectively. Drastic differences, in function of the wavelength used, were recorded for the crater depths, as well the appearance of hydrodynamic effects and periodic surface structures. Differences in crater depths were explained via an easier propagation of the first harmonic laser radiation (1064 nm) through the ejected material and plasma compared to a radiation at 532 and 266 nm. Finally, changes in the surface oxygen content caused by ultrashort laser pulses were considered.

Welding characteristics of foturan glass using ultrashort laser pulses

2012 ◽  
Author(s):  
Isamu Miyamoto ◽  
Kristian Cvecek ◽  
Yasuhiro Okamoto ◽  
Michael Schmidt ◽  
Henry Helvajian
Keyword(s):  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Ultrashort Laser

Evaluation of Chip-Breakers Manufactured by Ultrashort Laser Pulses in Cemented Carbide Tools

2017 ◽  
Author(s):  
Marcelo Bertolete Carneiro ◽  
Patrícia Alves Barbosa ◽  
Ricardo Samad ◽  
NIlson Vieira ◽  
Wagner de Rossi ◽  
...  
Keyword(s):  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Cemented Carbide ◽  
Cemented Carbide Tools ◽  
Ultrashort Laser
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