Studying the mechanisms of steel sheet perforation by the radiation of a continuous-wave fiber laser
Journal article, 2016
Aspects of steel sheet perforation are studied experimentally. Calculations show that the mechanisms of thin sheet perforation change as the focal spot size is increased at a constant laser power. If the spot is small, the melt is removed and the film is disrupted by steel boiling in the spot center. With larger spots, the melt is removed by the force of gravity. The hole diameter grows along with the focal spot size and sheet thickness and is reduced upon an increase in laser power.
Author
G. G. Gladush
Troitsk Institute for Innovation and Fusion Research
Russian Academy of Sciences
A. F. Glova
National Research Nuclear University
Troitsk Institute for Innovation and Fusion Research
Valeri Golovitchev
Chalmers, Applied Mechanics, Combustion and Propulsion Systems
S. V. Gvozdev
Troitsk Institute for Innovation and Fusion Research
A. G. Krasyukov
Troitsk Institute for Innovation and Fusion Research
A. Yu Lysikov
Troitsk Institute for Innovation and Fusion Research
V. K. Rerikh
Troitsk Institute for Innovation and Fusion Research
M. D. Taran
Troitsk Institute for Innovation and Fusion Research
Bulletin of the Russian Academy of Sciences: Physics
1062-8738 (ISSN) 19349432 (eISSN)
Vol. 80 4 393-396Subject Categories
Mechanical Engineering
DOI
10.3103/S1062873816040134