Remote processing of metals with laser radiation with increased intensity
- Authors: Gvozdev S.V.1, Glova A.F.1,2, Gladush G.G.1,3, Dubrovskii V.Y.1, Durmanov S.T.1, Krasyukov A.G.1, Lysikov A.Y.1, Smirnov G.V.1, Pleshkov V.M.1
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Affiliations:
- AO State Research Center of the Russian Federation Troitsk Institute for Innovation and Fusion Research (SRC RF TRINITI)
- National Research Nuclear University MEPhI
- Institute on Laser and Information Technologies
- Issue: Vol 8, No 5 (2017)
- Pages: 795-801
- Section: Modern Technologies of Preparation and Processing of Materials
- URL: https://journals.rcsi.science/2075-1133/article/view/206917
- DOI: https://doi.org/10.1134/S2075113317050124
- ID: 206917
Cite item
Abstract
Application of laser radiation with a wavelength of 1.07 μm and intensity of ~104 W/cm2 used on damaged gas wells for remote cutting of metals can be inefficient on damaged oil wells owing to a large value of the mean coefficient of radiation absorption by the oil flame of ~0.1 cm–1. It was shown that, when the radiation with the intensity increased to 105 W/cm2 propagated through this flame, the absorption coefficient decreased rapidly and, in the intensity range of 105–106 W/cm2, it stabilized at a very low level of 5 × 10–3–10–2 cm–1. Experimental investigations on the conditions of remote cutting of metal plates from 1.5 to 60 mm in thickness by radiation of a cw ytterbium fiber laser with a power up to 7.5 kW at the radiation intensity of 105–106 W/cm2 on the metal surface were performed. It was found that, in a majority of practically important cases, such main parameters as drilling time, maximum cutting velocity, and cutting efficiency exceeded those at the radiation intensity of ≤104 W/cm2.
Keywords
About the authors
S. V. Gvozdev
AO State Research Center of the Russian Federation Troitsk Institute for Innovation and Fusion Research (SRC RF TRINITI)
Author for correspondence.
Email: gsv@triniti.ru
Russian Federation, Troitsk, Moscow, 142190
A. F. Glova
AO State Research Center of the Russian Federation Troitsk Institute for Innovation and Fusion Research (SRC RF TRINITI); National Research Nuclear University MEPhI
Email: gsv@triniti.ru
Russian Federation, Troitsk, Moscow, 142190; Moscow, 115409
G. G. Gladush
AO State Research Center of the Russian Federation Troitsk Institute for Innovation and Fusion Research (SRC RF TRINITI); Institute on Laser and Information Technologies
Email: gsv@triniti.ru
Russian Federation, Troitsk, Moscow, 142190; Shatura, Moscow oblast, 140700
V. Yu. Dubrovskii
AO State Research Center of the Russian Federation Troitsk Institute for Innovation and Fusion Research (SRC RF TRINITI)
Email: gsv@triniti.ru
Russian Federation, Troitsk, Moscow, 142190
S. T. Durmanov
AO State Research Center of the Russian Federation Troitsk Institute for Innovation and Fusion Research (SRC RF TRINITI)
Email: gsv@triniti.ru
Russian Federation, Troitsk, Moscow, 142190
A. G. Krasyukov
AO State Research Center of the Russian Federation Troitsk Institute for Innovation and Fusion Research (SRC RF TRINITI)
Email: gsv@triniti.ru
Russian Federation, Troitsk, Moscow, 142190
A. Yu. Lysikov
AO State Research Center of the Russian Federation Troitsk Institute for Innovation and Fusion Research (SRC RF TRINITI)
Email: gsv@triniti.ru
Russian Federation, Troitsk, Moscow, 142190
G. V. Smirnov
AO State Research Center of the Russian Federation Troitsk Institute for Innovation and Fusion Research (SRC RF TRINITI)
Email: gsv@triniti.ru
Russian Federation, Troitsk, Moscow, 142190
V. M. Pleshkov
AO State Research Center of the Russian Federation Troitsk Institute for Innovation and Fusion Research (SRC RF TRINITI)
Email: gsv@triniti.ru
Russian Federation, Troitsk, Moscow, 142190