Method and device for fabricating laser bean helicoidal...

G - Physics – 02 – B

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G02B 6/10 (2006.01) B21C 37/20 (2006.01) B21D 11/06 (2006.01) B23K 26/02 (2006.01)

Patent

CA 2098141

ABRÉGÉ DESCRIPTIF Le guide d'onde hélicoidal est obtenu à partir d'une bande métallique plane, polie sur l'une de. ses faces, que l'on fait passer dans au moins deux postes de formage successifs comprenant chacun une paire de galets profilés coopérants concave et convexe, les galets convexes étant parfaitement polis et l'écartement entre les galets du poste aval étant légèrement inférieur à l'épaisseur de la bande métallique qui les traverse, le rayon d'enroulement hélicoidal final du guide d'onde étant ajusté par un galet presseur à position réglable. Application notamment aux dispositifs de découpe laser.

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