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Title: Influence of the aperture angle on the efficiency of the melting of steel by millisecond laser pulses

Abstract

The influence of the divergence and aperture of millisecond laser pulses on the efficiency, the dynamic characteristics, and the depth of the molten zone in steel under conditions ensuring the rapid growth of a vapour - gas channel was investigated experimentally. It was established that the dependence of the efficiency on the aperture angle passes through a maximum, the efficiency and depth-of-melting maxima being attained for an aperture angle of 75 - 80 mrad. The highest rate of growth of the vapour - gas channel is also achieved for these aperture angles. It is pointed out that this aperture angle is optimal and that it should be aimed at in the design of pulsed industrial laser systems. (interaction of laser radiation with matter. laser plasma)

Authors:
;  [1]
  1. Samara Branch of the P.N. Lebedev Physics Institute, Russian Academy of Sciences, Samara (Russian Federation)
Publication Date:
OSTI Identifier:
21442699
Resource Type:
Journal Article
Journal Name:
Quantum Electronics (Woodbury, N.Y.)
Additional Journal Information:
Journal Volume: 30; Journal Issue: 4; Other Information: DOI: 10.1070/QE2000v030n04ABEH001727; Journal ID: ISSN 1063-7818
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; APERTURES; EFFICIENCY; LASER RADIATION; MELTING; PULSES; STEELS; VAPORS; ALLOYS; CARBON ADDITIONS; ELECTROMAGNETIC RADIATION; FLUIDS; GASES; IRON ALLOYS; IRON BASE ALLOYS; OPENINGS; PHASE TRANSFORMATIONS; RADIATIONS; TRANSITION ELEMENT ALLOYS

Citation Formats

Kayukov, S V, and Gusev, A A. Influence of the aperture angle on the efficiency of the melting of steel by millisecond laser pulses. United States: N. p., 2000. Web. doi:10.1070/QE2000V030N04ABEH001727.
Kayukov, S V, & Gusev, A A. Influence of the aperture angle on the efficiency of the melting of steel by millisecond laser pulses. United States. doi:10.1070/QE2000V030N04ABEH001727.
Kayukov, S V, and Gusev, A A. Sun . "Influence of the aperture angle on the efficiency of the melting of steel by millisecond laser pulses". United States. doi:10.1070/QE2000V030N04ABEH001727.
@article{osti_21442699,
title = {Influence of the aperture angle on the efficiency of the melting of steel by millisecond laser pulses},
author = {Kayukov, S V and Gusev, A A},
abstractNote = {The influence of the divergence and aperture of millisecond laser pulses on the efficiency, the dynamic characteristics, and the depth of the molten zone in steel under conditions ensuring the rapid growth of a vapour - gas channel was investigated experimentally. It was established that the dependence of the efficiency on the aperture angle passes through a maximum, the efficiency and depth-of-melting maxima being attained for an aperture angle of 75 - 80 mrad. The highest rate of growth of the vapour - gas channel is also achieved for these aperture angles. It is pointed out that this aperture angle is optimal and that it should be aimed at in the design of pulsed industrial laser systems. (interaction of laser radiation with matter. laser plasma)},
doi = {10.1070/QE2000V030N04ABEH001727},
journal = {Quantum Electronics (Woodbury, N.Y.)},
issn = {1063-7818},
number = 4,
volume = 30,
place = {United States},
year = {2000},
month = {4}
}