C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
C21D 1/09 (2006.01) B23K 26/00 (2006.01) B23K 26/06 (2006.01) B23K 26/073 (2006.01) C21D 10/00 (2006.01) C22F 3/00 (2006.01)
Patent
CA 2226444
The invention relates to a method and apparatus for improving properties of a solid material by providing shockwaves therethrough. The method includes controlling the incident angle .theta. of the laser beam applied to the workpiece so that the required residual stresses are created in the workpiece. Particular methods of control such as lenses, polarizers, and particular transparent overlay geometries are shown. The apparatus includes structure for controlling the position and incident angle of the laser beam then controlling the polarization and/or the shape of the incident impact area, based on such incident angle .theta..
Méthode et appareil permettant d'améliorer les propriétés d'un matériau solide au moyen d'ondes de choc. Comprend la commande de l'angle d'incidence .theta. du faisceau laser appliqué à la pièce de sorte à produire dans celle-ci les contraintes résiduelles nécessaires. Des méthodes de commande particulières, p. ex. lentilles, polarisateurs et certaines structures à superposition en transparence sont présentées. L'appareil comprend une structure permettant de commander la position et l'angle d'incidence du faisceau laser puis de commander la polarisation et(ou) la forme de la région d'impact, en fonction de l'angle d'incidence .theta..
Clauer Allan H.
Dulaney Jeffrey L.
Toller Steven M.
Lsp Technologies Inc.
Moffat & Co.
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