B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 65/16 (2006.01) B23K 26/06 (2006.01) B23K 26/10 (2006.01) B23K 26/12 (2006.01) B23K 26/18 (2006.01)
Patent
CA 2372216
Plastic pieces (26, 28) for laser welding are clamped by a support mechanism (12, 14) that covers an interface of a joint to be welded. The support mechanism is transparent to the laser (20) radiation. Surface cooling (40) of the support mechanism and the pieces is provided by fluid such as nitrogen directed to the point of laser impingement at the interface. The local intensity of the laser can be reduced by beam splitting. Heating at the weld zone is controlled by the differing optical characteristics of the components. One of the pieces can be used as a waveguide to direct the laser radiation to the interface.
L'invention concerne un mécanisme de support, permettant de serrer des pièces en plastique destinées à être soudées par un faisceau laser, qui recouvre une interface de joint à souder. Ledit mécanisme de support est transparent au faisceau laser. Le refroidissement de la surface du mécanisme de support et des pièces s'effectue à l'aide d'un fluide, tel que de l'azote, vers le point d'impact du faisceau laser au niveau de l'interface. L'intensité locale du faisceau laser peut être réduite par dédoublement dudit faisceau. Le chauffage au niveau de la zone soudée est commandé par les différentes caractéristiques optiques des composants. L'une des pièces peut être utilisée comme guide d'onde afin d'orienter le faisceau laser vers l'interface.
Ogmen Melih
Pinho George
Mccarthy Tetrault Llp
Ogmen Melih
Pinho George
Powerlasers Ltd.
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