B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 26/04 (2006.01) B23K 26/08 (2006.01) B23K 26/14 (2006.01)
Patent
CA 2234895
An improved method and apparatus of cutting an object with a laser beam, comprising using a diode laser-pumped pulsed solid state laser having an average power output from about 2 to about 100 watts and delivering an average laser beam brightness of greater than 1012 W/m2*sr and a peak brightness of greater than 1013 W/m2*sr to the object. Objects cut with the laser cutting method having heat affected zones (HAZ) of less than 4 mm, and having substantially no microcracks.
L'invention porte sur un procédé et un appareil de découpage d'objets au laser recourant à un laser solide pulsé à pompage par diode laser d'une puissance de sortie moyenne d'environ 2 à environ 100 W et dirigeant sur l'objet un faisceau d'une brillance moyenne supérieure à 10?12¿ W/m?2¿*sr et atteignant des pics de 10?13¿ W/m?2¿*sr. Les objets découpés par ce procédé présentent des zones affectées par la chaleur de moins de 4 mm et sont sensiblement exempts de microfissures.
Bennett Jones Llp
E.i. Du Pont de Nemours And Company
Invista Technologies S.a.r.l.
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