Development of a time resolved energy absorption measurement technique for laser beam spot welds

2008 ◽  
Author(s):  
J. T. Norris ◽  
C. V. Robino
Keyword(s):  
Laser Beam ◽  
Energy Absorption ◽  
Measurement Technique ◽  
Absorption Measurement ◽  
Spot Welds ◽  
Beam Spot ◽  
Time Resolved

scholarly journals Pulse shaping effects on weld porosity in laser beam spot welds : contrast of long- & short- pulse welds.

2007 ◽  
Author(s):  
Chad M. Ellison ◽  
Matthew J. Perricone ◽  
Kevin M. Faraone ◽  
Jerome T. Norris
Keyword(s):  
Laser Beam ◽  
Pulse Shaping ◽  
Short Pulse ◽  
Spot Welds ◽  
Beam Spot ◽  
Weld Porosity

scholarly journals Development of micromirror-based laser line generator

2021 ◽  
Author(s):  
Farzad Hossein Nia
Keyword(s):  
Laser Beam ◽  
System Design ◽  
Laser Line ◽  
Beam Spot ◽  
Optical System Design ◽  
Straight Line ◽  
Laser Module ◽  
Design Software ◽  
Working Distance ◽  
Conventional Laser

A laser line generator projects a straight line on an object and is widely used for alignment, identification, barcode reading, etc. Conventional laser line generators make use of cylindrical and Powell lenses that convert a laser beam spot into a line. Because of a fixed fan angle, however, the length and brightness of the generated line depends on the working distance between the laser module and object. In this project, using the optical system design software Zemax and engineering CAD software Solidworks, a micromirror based laser line generator is designed and fabricated. The performance of the fabricated micromirror based laser line generator is tested and compared with the performance of a conventional laser line generator. The results show that the length and brightness of image line can be kept constant by the designed generator.

Measurement of focal length based on laser-beam-spot tracking system using diffractive beam sampler

Measurement ◽  
2018 ◽  
Vol 122 ◽  
pp. 135-140 ◽  
Author(s):  
Binh Xuan Cao ◽  
Phuong Le Hoang ◽  
Sanghoon Ahn ◽  
Jeng-o Kim ◽  
Heeshin Kang ◽  
...  
Keyword(s):  
Laser Beam ◽  
Focal Length ◽  
Tracking System ◽  
Beam Spot

scholarly journals Time-resolved Visualization of Laser Beam Melting of Silica Glass Powder

2016 ◽  
Vol 83 ◽  
pp. 1013-1020 ◽  
Author(s):  
I. Zhirnov ◽  
R.S. Khmyrov ◽  
C.E. Protasov ◽  
A.V. Gusarov
Keyword(s):  
Laser Beam ◽  
Silica Glass ◽  
Glass Powder ◽  
Time Resolved ◽  
Laser Beam Melting
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