Laser apparatus
    2.
    发明授权

    公开(公告)号:US12130422B2

    公开(公告)日:2024-10-29

    申请号:US17066945

    申请日:2020-10-09

    申请人: NPS CO., LTD.

    发明人: Seong Ho Bae

    摘要: The present disclosure relates to a laser apparatus including a laser oscillator for oscillating a laser beam; a mirror mount assembly including a mount-side reflective mirror for transmitting the laser beam by reflecting the laser beam; an aligner including a dial that is configured to change alignment of the mount-side reflective mirror according to a rotation angle and a rotation direction and is responsible for adjusting, by the degree of displacement of the reflection angle of the mount-side reflective mirror according to change in the alignment state, a processing optical path through which the laser beam travels, and a driving motor for driving rotation of the dial; an examination module for calculating the optical path difference between a predetermined reference processing optical path and the processing optical path and examining whether optical path distortion occurs on the processing optical path; a calculation module for, when the optical path difference exceeds predetermined reference optical path difference, calculating the target driving speed and target driving time of the driving motor for changing alignment of the mount-side reflective mirror to correct the optical path distortion so that the optical path difference is less than or equal to the predetermined reference optical path difference; and a controller for driving the driving motor according to the target driving speed and the target driving time, wherein the examination module recalculates the optical path difference between the reference processing optical path and the processing optical path that has been changed by the driving motor according to the target driving speed and the target driving time and re-examines whether the optical path distortion occurs, the calculation module recalculates the target driving speed and the target driving time based on the recalculated optical path difference when the recalculated optical path difference exceeds the reference optical path difference, and the controller drives the driving motor again according to the recalculated target driving speed and target driving time.

    Nozzle adapter for laser cutting head

    公开(公告)号:US12103105B2

    公开(公告)日:2024-10-01

    申请号:US17248542

    申请日:2021-01-28

    IPC分类号: B23K26/14 B23K26/38 B23K26/70

    摘要: A laser cutting head uses a nozzle and gas flow to perform laser cutting or the like. The laser processing and the gas flow passes from an end of the housing. A sensor assembly affixed to the end of the housing has a first through which the laser processing passes and an orifice from which the gas flow passes. A conductive adapter affixes to the sensor assembly and has a passage through which the laser processing passes. The nozzle affixes in a receptacle in an end of the conductive adapter. A collar disposed about the adapter defining one or more gas flow passages therethrough. A cover is disposed between the sensor assembly and the collar and encloses a space communicating the gas flow from the orifice to the one or more flow passages of the collar.

    CLADDING PROCESS FOR IN-SITU PIPES INTEGRITY

    公开(公告)号:US20240308000A1

    公开(公告)日:2024-09-19

    申请号:US18183233

    申请日:2023-03-14

    摘要: An in-situ cladding method including providing a pipe with a target surface with a defected area. The method also includes lowering an in-situ cladding system into the pipe. The in-situ cladding system includes a dual head laser, with primary and secondary beams, and a wire feeding system. The method also includes lowering the wire feeding system into the pipe, feeding a cladding wire onto the target surface, melting the cladding wire onto the target surface with the primary beam, and blowing gas onto the cladding wire using an internal purging system. The method further includes forcing melting of the cladding wire in a first desired direction to form a first layer, forcing melting of the cladding wire in a second desired direction to form a second layer, switching off the primary beam and switching on the secondary beam, and welding the first and second layers together using the secondary beam.