Accurate gaussian laser beam diameter measurement using exponential and rectified sinusoidal rulings

1992 ◽  
Vol 5 (6) ◽  
pp. 279-283 ◽  
Author(s):  
A. K. Cherri ◽  
A. A. S. Awwal
Keyword(s):  
Laser Beam ◽  
Beam Diameter ◽  
Diameter Measurement ◽  
Gaussian Laser Beam ◽  
Laser Beam Diameter

Gaussian laser-beam-diameter measurement using sinusoidal and triangular rulings

1987 ◽  
Vol 12 (2) ◽  
pp. 93 ◽  
Author(s):  
A. M. Nasiruddin ◽  
A. Basit ◽  
D. S. Vedak ◽  
M. A. Karim ◽  
A. A. S. Awwal ◽  
...  
Keyword(s):  
Laser Beam ◽  
Beam Diameter ◽  
Diameter Measurement ◽  
Gaussian Laser Beam ◽  
Laser Beam Diameter

Laser-beam diameter measurement using periodic logarithmic grating

1991 ◽  
Vol 4 (10) ◽  
pp. 395-397
Author(s):  
A. A. S. Awwal ◽  
D. R. Klemer ◽  
T. A. Birt ◽  
M. R. Vallapareddy ◽  
C. G. Kurek ◽  
...  
Keyword(s):  
Laser Beam ◽  
Beam Diameter ◽  
Diameter Measurement ◽  
Laser Beam Diameter

Wide range laser beam diameter measurement using a periodic exponential grating

1991 ◽  
Vol 23 (3) ◽  
pp. 159-161 ◽  
Author(s):  
A.A.S. Awwal ◽  
J.A. Smith ◽  
J. Belloto ◽  
G. Bharatram
Keyword(s):  
Laser Beam ◽  
Beam Diameter ◽  
Diameter Measurement ◽  
Laser Beam Diameter ◽  
Wide Range

Increasing the accuracy of laser beam diameter measurement

1995 ◽  
Vol 38 (6) ◽  
pp. 634-636
Author(s):  
O. E. Sidoryuk ◽  
E. N. Ushanova
Keyword(s):  
Laser Beam ◽  
Beam Diameter ◽  
Diameter Measurement ◽  
Laser Beam Diameter

Effect of Laser Beam Diameter on Cut Edge of Steel Plates Obtained by Laser Machining

2013 ◽  
Vol 467 ◽  
pp. 227-232 ◽  
Author(s):  
Imed Miraoui ◽  
Mouna Zaied ◽  
Mohamed Boujelbene
Keyword(s):  
Laser Beam ◽  
Laser Cutting ◽  
Steel Plates ◽  
Beam Diameter ◽  
Power Laser ◽  
Laser Beam Diameter ◽  
Machined Surface ◽  
Cut Edge ◽  
Thermal Influence ◽  
Cut Surface

Laser cutting is a thermal process which is used contactless to separate materials. In the present study, high-power laser cutting of steel plates is considered and the thermal influence of laser cutting on the cut edges is examined. The microstructure and the microhardness of the cut edge are affected by the input laser cutting parameter: laser beam diameter. The aim of this work is to investigate the effect of the laser beam diameter on the microhardness beneath the cut surface of steel plates obtained by CO2 laser cutting. The cut surface was studied based on microhardness depth profiles beneath the machined surface. The results show that laser cutting has a thermal effect on the surface microstructure and on the microhardness beneath the cut section. Also the microhardness of the hardening zone depends on the laser beam diameter.

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