Keyhole dynamic status and spatter behavior during welding of stainless steel with adjustable-ring mode laser beam

2022 ◽  
Vol 74 ◽  
pp. 201-219
Author(s):  
Lin Wang ◽  
Xiangdong Gao ◽  
Fanrong Kong
Keyword(s):  
Stainless Steel ◽  
Laser Beam ◽  
Mode Laser ◽  
Ring Mode

Degradation of optical coatings induced by high-intensity, 515 nm, sub-picosecond burst-mode laser beam

2021 ◽  
Author(s):  
Ulrike Wegner ◽  
Joachim Meier ◽  
Dimitrios Rompotis ◽  
Radu-Costin Secareanu ◽  
Moritz Emons ◽  
...  
Keyword(s):  
Laser Beam ◽  
High Intensity ◽  
Optical Coatings ◽  
Mode Laser ◽  
Burst Mode

Effect of focal position on cut surface quality in laser cutting of 50-mm thick stainless steel

2021 ◽  
pp. 2140018
Author(s):  
Moo-Keun Song ◽  
Jong-Do Kim ◽  
Dong-Sig Shin ◽  
Su-Jin Lee ◽  
Dae-Won Cho
Keyword(s):  
Stainless Steel ◽  
Laser Beam ◽  
Laser Cutting ◽  
Nuclear Power ◽  
Surface Characteristics ◽  
Kerf Width ◽  
Power Structures ◽  
Thick Sample ◽  
Focal Position ◽  
Cut Surface

In this study, the parameters for underwater laser cutting of 50-mm thick stainless steel, which is typically used in nuclear power structures, are investigated. The focal position of laser beam significantly affects the cutting quality. In particular, in the cutting of the thick sample, change in the focal position determines the kerf width and the roughness of the cut surface. Moreover, the effects of the variation of kerf width and the cut surface characteristics on the focal position of the laser beam are investigated. As the focal position moved to the inside of the material, the upper kerf width increased, but the quality of the cut surface was improved.

scholarly journals Potentiodynamic corrosion studies on laser beam welded austenitic stainless steel AISI 321

2017 ◽  
Vol 263 ◽  
pp. 062031
Author(s):  
Adithya R Nair ◽  
P Niranjhan ◽  
M N Abijith ◽  
M Arivarasu ◽  
M Manikandan ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Laser Beam ◽  
Corrosion Studies ◽  
Steel Aisi ◽  
Aisi 321 ◽  
Stainless Steel Aisi
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