Device and method for extended distance cutting by laser, in pulse mode
AssigneeCommissariat a l'Energie Atomique
InventorsJean-Paul Grandjean, Jean-Marc Dufaud, Jean-Pascal Alfille, Patrick Meyrueis, Patrice Twardowski
Life of this patent
Estimating the term…
Abstract
The invention relates to a device for laser cutting, having: means (2) for emitting a pulsed laser beam, with energy pulses E≧10 joules, at least one optical fiber (4) for transmitting the laser pulses, from the means of emitting the laser beam in the direction of a piece (6) to be cut, means of focusing the laser beam. The invention also relates to a method for the laser cutting, at a distance, of a piece to be cut. Application to the dismantling and/or taking apart of an installation.
Claims6
A method for dismantling an installation to be dismantled, the method comprising:
- emitting laser pulses with an energy of E≧10 joules;
- transmitting the laser pulses by at least one optical fibre, in the direction of a piece of the installation to be dismantled;
- and
- focusing of the laser beam onto said piece, by means of a focusing device with a focal distance f≧50 cm, the laser beam having a radiation lying in a frequency range lying at least partly between 5.64×1013 rad.secs−1 and 5.64×1014 rad.secs−1.
Dependencies are inferred from the claim text.