Trumpf Laser- Und Systemtechnik Gmbh

Trumpf Werkzeugmaschinen Gmbh + Co. Kg

Trumpf Lasertechnik Gmbh

Wolfgang Andreasch

Martin Huonker

Rudolph Huber

Rudolf Huber

Armin Horn

Dieter Burger

Andreas Enzmann

Michael Häcker

Michael Haecker

Florian Sepp

Stefan Boeckmann

Peter Kaupp

Moritz Berger

Patrick Weber

Martin Johannes Geiger

Martin Dr Huonker

Methods and systems for generating a laser beam with different beam profile characteristics are provided. In one aspect, a method includes coupling an input laser beam into one fiber end of a multi-clad fiber, in particular a double-clad fiber and emitting an output laser beam from the other fiber end of the multi-clad fiber. To generate different beam profile characteristics of the output laser beam, the input laser beam is electively coupled either at least into the inner fiber core of the multi-clad fiber or at least into at least one outer ring core of the multi-clad fiber, or a first sub-beam of the input laser beam is coupled into at least into the inner fiber core of the multi-clad fiber and a second, different sub-beam of the input laser beam is coupled at least into the at least one outer ring core of the multi-clad fiber.

Method and arrangement for generating a laser beam having a differing beam profile characteristic by a multi-clad fiber

The invention relates to methods for laser welding a first and a second workpiece portion with a laser beam that is guided using a laser machining head along a joining gap formed between the workpiece portions, in which method the laser beam is focused and a filler is lined up with the joining gap. At least one gap width of the joining gap of the workpiece portions to be welded is detected and evaluated along the course of the joining gap and compared with at least a first and a second gap measurement. If a detected gap width is within the first gap measurement, the feeding of the filler to the joining gap is stopped and a beam profile of the laser beam is set with a point or annular focus, and if a detected gap width is within the second gap measurement, a feeding of the filler is actuated.

Method and laser processing machining for laser welding a first and a second workpiece portion

Devices for laser welding using welding wire have a welding head, a wire guide for the welding wire, and a wire feed drive. The welding wire can be moved by the wire feed drive during a welding process with a feed movement in a feed direction, guided by the wire guide. A positioning device has a positioning drive, by which the welding wire is moved in an oscillating manner in the longitudinal direction of the welding wire, when a wire end of the welding wire is arranged in a welding readiness position. Methods for laser welding using a welding wire as added material are carried out using the devices. A control program controls the devices. The devices for laser welding can be provided as a part of a welding robot.

Laser welding device and laser welding method using welding wire

Method and arrangement for generating a laser beam having a differing beam profile characteristic by coupling different input laser beams into different cores of a multi-clad fiber

The invention concerns a method for generating a laser beam () with different beam profile characteristics, whereby a laser beam () is coupled into one fiber end () of a multi-clad fiber (), in particular a double-clad fiber, and emitted from the other fiber end () of the multi-clad fiber () and whereby, to generate different beam profile characteristics of the output laser beam (), the input laser beam () is electively coupled either at least into the inner fiber core () of the multi-clad fiber () or at least into at least one outer ring core () of the multi-clad fiber (), as well as a corresponding arrangement ().

Electively coupling a laser beam into a multi-clad fiber

Method and arrangement for generating a laser beam having a differing beam profile characteristic by means of a multi-clad fiber

An adaptive lens system for laser materials processing, for example, in the high-power range of at least approximately 1 kW, includes two deformable lens surfaces spaced apart from each other in the direction of the optical axis, a chamber formed between the two lens surfaces and filled with a fluid, and a device for changing the distance between the two lens surfaces along the optical axis.

Adaptive lens system

A method for processing workpieces includes performing a laser processing operation in which a laser beam is directed at a first mirror face and at a second mirror face of a redirecting mirror. The second mirror face is at least partially surrounded by the first mirror face. During the laser processing operation, the second mirror face performs a pendulum movement relative to the first mirror face.

Dynamic redirection of a laser beam

Systems and related methods of programming a laser processing device for automated processing of a workpiece including indicating a processing location on a workpiece with a processing location indicator. The processing location is detected with a processing location detector. The scanner optics of the laser processing device are adjusted to a set position corresponding to the detected processing location. A set position of the scanner optics is detected with a processing location evaluator, and a control program corresponding to the detected set position of the scanner optics is generated with the processing location evaluator.

Remote processing of workpieces

In a bearing support () for a laser resonator, adjacent support sections () are directly and undetachably connected to each other by an articulated deflectable joint (). An additional vertical safety on the bearing support is no longer necessary since the two support sections () are already held together in a vertically secure manner by the articulated joint ().

Articulated bearing supports for laser resonators

An apparatus for deflecting a laser beam includes a deflecting mirror disposed in a holder, a lever, a rotatable coupler, and a drive member. The mirror is pivotable about a first pivot axis lying on a surface of the mirror, and the holder is rotatable about a second pivot axis oriented substantially perpendicular to the first pivot axis to cause the mirror to rotate about the second pivot axis. The lever is coupled to the mirror along a first lever axis parallel to and separated from the first pivot axis. The rotatable coupler is coupled to the lever along a second lever axis parallel to and separated from the first pivot axis, the coupler is rotatable about the second pivot axis, and the rotatable coupler and the holder are longitudinally translatable relative to each other along the second pivot axis. The drive member is coupled to the holder, and the drive member is longitudinally translatable along the second pivot axis to cause the mirror to rotate about the first pivot axis.

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Weinstadt, Germany

Wolfgang Andreasch