The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2015
Filed:
Apr. 20, 2012
Maurizio Sbetti, Levico Terme, IT;
Stefano Bertoldi, Pergine Valsugana, IT;
Daniele Colombo, Renate, IT;
Barbara Previtali, Bonate Sopra, IT;
Giovanni Riva, Vercurago, IT;
Matteo Danesi, Montichiari, IT;
Lorenzo Molinari Tosatti, Bergamo, IT;
Diego Parazzoli, Milan, IT;
Maurizio Sbetti, Levico Terme, IT;
Stefano Bertoldi, Pergine Valsugana, IT;
Daniele Colombo, Renate, IT;
Barbara Previtali, Bonate Sopra, IT;
Giovanni Riva, Vercurago, IT;
Matteo Danesi, Montichiari, IT;
Lorenzo Molinari Tosatti, Bergamo, IT;
Diego Parazzoli, Milan, IT;
Adige S.p.A., Levico Terme (TN), IT;
Abstract
Laser cutting processes are provided which are controlled using as a reference signal one or more emission lines which are characteristic of the radiation emitted by a gas or, more generally, by an emitting element present in the volume irradiated by the laser beam focussed by a laser head and adjusting, on the basis of this reference signal, at least one of the following process control parameters: the power of the laser, the frequency and the duty cycle of the laser pulse, the pressure of an assisting gas emitted by a nozzle forming part of the laser head, the relative speed of the laser head with respect to the workpiece, the distance between the laser head and the surface of the workpiece, and the distance between the focal point of the laser beam and the surface of the workpiece. Laser cutting devices are also provided.