Bystronic Laser Ag

Simon Scheidiger

Andreas Luedi

Michael Berger

Martin Mumenthaler

Titus Haas

Markus Steinlin

Andreas Lüdi

Stefan Wittwer

Michael Held

Thomas Rataj

Roland Zollinger

Elio Ingold

Michael BRÜGMANN

A control unit for providing control instructions for controlling a laser cutting machine by determining transition phases for transforming different dynamic laser beam shapes for the laser cutting machine, for dynamically varying the shape of the laser beam is disclosed. The control unit includes a cutting plan interface for receiving a cutting plan for cutting out parts of a workpiece that are each defined by a cutting segments ordered in a queue, an allocation tool configured to allocate a specific dynamic laser beam shape to each cutting segment, a transition tool for determining transition phases between each two consecutive specific dynamic laser beam shape, and a processor configured for determining a specific dynamic laser beam shape for each cutting segment and for determining all transition phases between each two consecutive specific dynamic laser beam shapes and for providing controlling the laser cutting machine for executing the received cutting plan.

Determination of transition phases for transforming different dynamic laser beam shapes for a laser cutting machine

A control unit for determining a dynamic laser beam shape for controlling a laser cutting machine, which is provided with a dynamic beam shaping module for varying the shape of the laser beam. The control unit includes a cutting plan interface, which is configured for receiving a cutting plan, an interface to a shape storage with a stored set of dynamic laser beam shapes, in particular more than two, and a processor which is configured for automatically calculating for each of the cutting segments an allocation to a dynamic laser beam shape of the set of dynamic laser beam shapes, wherein calculating the allocation is based on the property indicator of the workpiece and is specific for the respective cutting segment. The processor is further configured for providing control instructions for controlling the laser cutting machine by applying the determined dynamic laser beams shapes for each cutting segment specifically.

Automatic determination of a dynamic laser beam shape for a laser cutting machine

Cutting a workpiece and producing workpiece parts are disclosed. The device has a cutting head with laser beam optics with a dynamic laser beam movement unit. A cutting head movement unit moves the laser beam over the workpiece. A control unit has a determination module to determine a movement trajectory of the laser beam, a memory unit from which at least one predetermined parameter selected from a movement parameter of the cutting head movement unit, a movement parameter of the laser beam movement unit and a parameter of a deviation of a cut contour from a predetermined contour is retrievable, and an optimization module for adjusting the movement trajectory by overlaying the movement of the laser beam via the cutting head with a high frequency beam-shaping movement of the laser beam via the laser beam movement unit based on the at least one predetermined parameter.

Device and method for laser cutting a workpiece and producing workpiece parts

A machining apparatus for laser machining a workpiece in a machining zone is provided, having an interface for a machining laser source for generating a machining laser beam with a direction of propagation; an outlet opening for the machining laser beam; and an optical system between the interface and the outlet opening, wherein the optical system has: at least one optical unit that adjusts the focal length of the optical system, and at least one stationary laser beam guiding device with at least one movable surface, wherein the at least one movable surface can be adjusted such that it modifies the focal length of the optical system and/or the beam parameter product of the machining laser beam integrated over time in at least one operating mode. Further provided is a method for laser machining a workpiece.

Machining apparatus for laser machining a workpiece and method for laser machining a workpiece

An optical unit fora laser beam for laser machining of a workpiece is disclosed. With particular application to a laser beam, the optical unit may be applied to a high-power laser beam and comprise an optical element for the optical imaging of the laser beam, and two protective glasses that are transparent for the laser beam, the outer edges of which protective glasses being enclosed in an airtight manner by a holder in such a way that they form an interior space with the holder, the optical element also being arranged in the interior space. A laser machining device is also disclosed.

Optical unit for laser machining of a workpiece and laser machining device

A beam shaper () for shaping a laser beam is provided, including a first beam shaping section () designed for shaping a central part of the laser beam, and a second beam shaping section () designed for shaping a peripheral part of the laser beam. Moreover, a device for laser beam treatment of a workpiece and a method for laser beam treatment of a workpiece are provided.

Beam shaper and use thereof, device for laser beam treatment of a workpiece and use thereof, method for laser beam treatment of a workpiece

According to the present application, a machining apparatus () for the laser machining of a workpiece () in a machining zone () is provided, having a first interface () for a machining laser source for generating a machining laser beam (), a second interface () for a detector device (for detecting radiation () emitted by the machining zone (); an outlet opening () for the machining laser beam (); and first and second laser beam guiding devices (), wherein the first laser beam guiding device (),) is arranged and designed such that it guides the machining laser beam () to the second laser beam guiding device () and dynamically moves the machining laser beam (), and the second laser beam guiding device () is arranged and designed such that it guides the dynamically moved machining laser beam () through the outlet opening () and at least partially guides the radiation () emitted by the machining zone () through the outlet opening to the second interface (). Further provided is a method for the laser machining of a workpiece ().

Machining apparatus for the laser machining of a workpiece and method of the laser machining of a workpiece

A machining apparatus for laser machining a workpiece () in a machining zone () is provided, having a first interface () for a machining laser source for generating a machining laser beam (), an outlet opening () for the machining laser beam (), In an optical system between the first interface () and the outlet opening (), which has at least one laser beam guiding device () having at least one movable surface () and at least one actuator (), with which the movable surface () is dynamically adjustable, and a cooling device () for cooling the at least one actuator (), wherein the cooling device () has at least one primary circuit () through which a first cooling fluid can flow without contact with the actuator (). Furthermore, a set of parts for a machining apparatus for laser machining a workpiece () and a method of laser machining a workpiece () using such machining apparatus are also provided.

Machining apparatus for laser machining a workpiece, set of parts for a machining apparatus for laser machining a workpiece and method for laser machining a workpiece using such machining apparatus

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Langenthal, Switzerland

Simon Scheidiger