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    SYSTEM AND METHOD FOR LASER DRILLING OF SHAPED COOLING HOLES
    3.
    发明公开
    SYSTEM AND METHOD FOR LASER DRILLING OF SHAPED COOLING HOLES 审中-公开

    公开(公告)号：EP3689528A3

    公开(公告)日：2020-11-11

    申请号：EP19216207.1

    申请日：2019-12-13

    申请人： United Technologies Corporation

    发明人： WINTER, Michael

    IPC分类号： B23K26/06 ,  B23K26/073 ,  B23K26/384 ,  B23K26/382 ,  B23K101/00

    摘要： A laser hole drilling system (200) includes a laser source (202) that generates a laser beam along an optical axis (L); a spherical lens (204) along the optical axis (L) downstream of the laser source (202); and a control system (206) in communication with the spherical lens (204) and the laser source (202), the control system (206) operable to locate the spherical lens (204) with respect to the laser source (202) to produce a light distribution in polar coordinates of a real portion of the Fourier Transform to generate an asymmetric teardrop shaped energy distribution at a focal plane.

    MACHINING DEVICE
    6.
    发明公开
    MACHINING DEVICE 审中-公开

    公开(公告)号：EP4177000A1

    公开(公告)日：2023-05-10

    申请号：EP22163995.8

    申请日：2016-08-12

    申请人： Laser Engineering Applications

    发明人： ESTIVAL, Sébastien ,  MARTIN, Paul-Etienne ,  KUPISIEWICZ, Axel

    IPC分类号： B23K26/082 ,  B23K26/384 ,  G02B5/12 ,  G02B26/08 ,  G02B26/10 ,  G02B5/122

    摘要： The present application relates to a machining device comprising an optical system (2) for obtaining from an incoming light beam (1) produced by a light source an outgoing light beam (7). The optical system (2) comprises a movable mirror (19), for obtaining a first reflected light beam by reflection of a first incident light beam obtained from the incoming light beam (1), an optical element (21) for directing first reflected light beam such that it comes back to the mirror (19) as a second incident light beam (8) for producing an outgoing light beam (7) obtained from the reflection of the second incident light beam (8) on the mirror (19), driving means (6) for moving said movable mirror (19), focusing means (9) for focusing said outgoing light beam (7) on a target (10), said outgoing light beam (7) remaining parallel to a given direction upstream the focusing means (9) whatever the position and orientation of the mirror (19). The optical system (2) is configured such that, depending on the position of the mirror (19), the outgoing light beam (7) follows a different trajectory serving to drive the precession of the outgoing light beam (7) downstream the focusing means (9).