Laser processing system having function of preparing to restart processing

    公开(公告)号:US10252375B2

    公开(公告)日:2019-04-09

    申请号:US14698351

    申请日:2015-04-28

    申请人: FANUC CORPORATION

    发明人: Atsushi Mori

    摘要: A laser processing system including a laser processing unit, a controller controlling the processing unit according to a laser processing program, and a restart preparation apparatus performing a preparation process of the controller to resume the program execution after being suspended. The restart preparation apparatus includes an operating state judging section judging whether an operating state of the processing unit when suspending the program execution is in course of laser processing, and a restart condition specifying section specifying a restart condition of the processing unit when resuming the program execution, from among predetermined conditions, based on a judgment result. The operating state judging section judges that the operating state is in course of laser processing, if a predetermined operation command for processing the workpiece is output from the controller, or predetermined external information for processing the workpiece is input to the controller, at the instant of suspending the program execution.

    Laser processing apparatus and laser processing method

    公开(公告)号:US10189115B2

    公开(公告)日:2019-01-29

    申请号:US15104627

    申请日:2014-07-30

    摘要: Provided is a laser processing apparatus provided with: a first optical system including a first prism and a second prism; a second optical system including a third prism and a fourth prism; a condensing optical system that condenses laser light to guide the condensed laser light to a workpiece; a first driving device that rotates the first prism and rotates the second prism synchronously with the first prism; a second driving device that rotates the third prism and rotates the fourth prism synchronously with the third prism; and a controller that controls the first driving device and the second driving device such that the workpiece is irradiated with the laser light while the laser light turns. The controller adjusts irradiation conditions of the laser light including an incidence position and an incidence angle of the laser light with respect to the workpiece, by adjusting a relative position between the first prism and the second prism and a relative position between the third prism and the fourth prism in a rotational direction.

    Method for removing, by means of a laser beam, a bulge deposited on the surface of a workpiece when a through hole is formed

    公开(公告)号:US10155287B2

    公开(公告)日:2018-12-18

    申请号:US14966250

    申请日:2015-12-11

    摘要: Methods and systems are implemented for forming a through hole in a workpiece using a laser beam and a process gas, such as oxygen or nitrogen, coming from a gas nozzle. A hole is formed in the workpiece using the laser beam and a process gas emerging from a gas nozzle, such that the formed hole extends only partially through the workpiece. A bulge deposited while forming the hole partially through the workpiece is removed from the workpiece surface by directing a flow of gas through the nozzle toward the workpiece surface as the nozzle is moved with the laser beam switched off, the flow of gas being delivered to the nozzle at a higher pressure than the process gas is delivered to the nozzle during forming the hole partially through the workpiece. Then, the hole is fully pierced through the workpiece by the laser beam using the process gas.