Patents Assigned to Trumpf Laser- und Systemtechnik GmbH
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Patent number: 8829474Abstract: A laser protection cabin separates a working space for laser processing from a working space environment and includes a first wall area, in particular a ceiling area, and a second wall area, in particular a lateral wall area. The second wall area, on its interior side facing the working area, in particular in a sub-area adjacent to the first wall area, has a laser beam reflector in order to reflect laser radiation, created during laser processing, onto the first wall area. The first wall area has a surface, on its interior side facing the working area, which absorbs and/or diffusely scatters the laser radiation.Type: GrantFiled: April 17, 2013Date of Patent: September 9, 2014Assignee: TRUMPF Laser- und Systemtechnik GmbHInventors: Joerg Weber, Joerg Poeppelmann, Peter Heck
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Patent number: 8817833Abstract: A gas laser includes discharge tubes connected to together by corner housings, each corner housing including a first cooling channel configured to allow flow of a first coolant. A heat exchanger circuit includes a plurality of second cooling channels configured to allow flow of a second coolant. Each second cooling channel is operable to cool laser gas prior to the laser gas entering into one of the corner housings. The gas laser further includes a temperature control device, in which the temperature control device is selected from the group consisting of a laser gas cooling device, a coolant temperature control assembly, and combinations thereof. The temperature control device is operable to maintain a temperature difference of less than approximately 5 K between the first coolant flowing through the first cooling channel of the corner housing and the laser gas entering into the corner housing.Type: GrantFiled: December 14, 2012Date of Patent: August 26, 2014Assignee: TRUMPF Laser-und Systemtechnik GmbHInventor: Michael von Borstel
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Patent number: 8781269Abstract: The invention concerns a method for generating a laser beam (3) with different beam profile characteristics, whereby a laser beam (2) is coupled into one fiber end (1a) of a multi-clad fiber (1), in particular a double-clad fiber, and emitted from the other fiber end (1b) of the multi-clad fiber (1) and whereby, to generate different beam profile characteristics of the output laser beam (3), the input laser beam (2) is electively coupled either at least into the inner fiber core (4) of the multi-clad fiber (1) or at least into at least one outer ring core (6) of the multi-clad fiber (1), as well as a corresponding arrangement (10).Type: GrantFiled: April 8, 2011Date of Patent: July 15, 2014Assignee: TRUMPF Laser- und Systemtechnik GmbHInventors: Rudolf Huber, Wolfgang Andreasch, Martin Huonker
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Publication number: 20140175071Abstract: Detection of defects during a machining process includes: moving a laser beam along a predefined path over multiple workpieces to be machined so as to generate a weld seam or a cutting gap in the workpieces; detecting, in a two-dimensional spatially resolved detector field of a detector, radiation emitted and/or reflected by the multiple workpieces; selecting at least one detection field section in the detection field of the detector based on laser beam control data defining movement of the laser beam along the predefined path or based on a previously determined actual-position data of the laser beam along the predefined path, wherein each detection field section comprises a region encompassing less than the entire detection field; evaluating the radiation detected in in the selected detection field section; and determining whether a defect exists at the weld seam or the cutting gap based on the evaluated radiation.Type: ApplicationFiled: December 26, 2013Publication date: June 26, 2014Applicant: TRUMPF Laser - und Systemtechnik GmbHInventors: Dieter Pfitzner, Holger Braun, Friedhelm Dorsch
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Publication number: 20140151013Abstract: A method for forming a carbon-metal composite material for a heat sink, comprising the following steps: applying at least one layer comprising carbon particles and at least one layer comprising metal particles on top of one another; and fusing of the layers by irradiating the layers with laser radiation to form the carbon-metal composite material. The invention also relates to a heat sink having a shaped body that comprises a plurality of layers, each layer containing carbon particles in a metal matrix.Type: ApplicationFiled: July 11, 2012Publication date: June 5, 2014Applicants: TRUMPF LASER- UND SYSTEMTECHNIK GMBH, TRUMPF LASER GMBH + CO. KGInventors: Klaus Wallmeroth, Christian Schmitz
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Publication number: 20140092928Abstract: A gas laser includes a fan for producing a flow of a laser gas and a heat exchanger including multiple heat exchanger pipes. The heat exchanger further includes two end plates to which the multiple heat exchanger pipes are secured at the opposing ends thereof. The two end plates include openings for supplying a heat exchanger fluid to the multiple heat exchanger pipes. The multiple heat exchanger pipes extend substantially transversely relative to a flow direction of the flow of laser gas.Type: ApplicationFiled: November 27, 2013Publication date: April 3, 2014Applicant: TRUMPF Laser-und Systemtechnik GmbHInventors: Mark Geschwander, Matthias Breisacher
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Publication number: 20140084186Abstract: The invention relates to extreme ultraviolet “EUV” radiation generating systems that include a vacuum chamber where a target material can be positioned at a target position for generation of EUV radiation, and a beam guiding chamber for guiding a laser beam from a driver laser device towards the target position. The EUV radiation generating apparatus includes an intermediate chamber which is arranged between the vacuum chamber and the beam guiding chamber, a first window which seals the intermediate chamber in a gas-tight manner for entry of the laser beam from the beam guiding chamber and a second window which seals the intermediate chamber in a gas-tight manner for exit of the laser beam into the vacuum chamber. The invention also relates to a method for operating the EUV radiation generating apparatus.Type: ApplicationFiled: March 15, 2013Publication date: March 27, 2014Applicant: TRUMPF LASER- UND SYSTEMTECHNIK GMBHInventor: TRUMPF LASER- UND SYSTEMTECHNIK GMBH
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Publication number: 20140043676Abstract: The invention relates to an optical arrangement comprising an optical module having a first carrier body to which there are attached at least one optical element and a plurality of first mounting elements, and a housing having a second carrier body for at least one further optical element, wherein a plurality of second mounting elements is attached to the carrier body. Also comprised is a movement device for displacing the first carrier body relative to the second carrier body in a movement direction between a removal position from which the optical module can be removed from the housing and a mounting position in which the movement device presses the first mounting elements against the second mounting elements. The invention relates also to an optical module and to a method for correctly positioning an optical module in a housing.Type: ApplicationFiled: March 15, 2013Publication date: February 13, 2014Applicant: TRUMPF LASER- UND SYSTEMTECHNIK GMBHInventor: Martin Lambert
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Patent number: 8649103Abstract: 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.Type: GrantFiled: August 3, 2012Date of Patent: February 11, 2014Assignee: TRUMPF Laser- und Systemtechnik GmbHInventors: Wolfgang Andreasch, Dieter Burger, Andreas Enzmann, Florian Sepp
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Publication number: 20140021178Abstract: There is proposed a laser machining device (10) for a laser workpiece machining operation, having a laser (14) for producing laser radiation (50), and having at least two laser tools (18, 18?), to which the laser radiation (50) can be supplied by means of an optical-fibre cable (16). According to the invention, the optical-fibre cable (16) has an input-side end (20) having at least two optical fibre cores (22, 22?) and a plurality of output-side ends (26, 26?) each having one of the optical fibre cores (22, 22?), the optical fibre cores (22, 22?) each being connected to one of the laser tools (18, 18?). A switching device (28) is preferably provided for selectively coupling the laser radiation (50) in one or more of the optical fibre cores (22, 22?) of the optical-fibre cable (16).Type: ApplicationFiled: February 6, 2012Publication date: January 23, 2014Applicant: TRUMPF LASER- UND SYSTEMTECHNIK GMBHInventors: Rudiger Brockmann, Martin Huonker
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Publication number: 20140025191Abstract: A method of processing structurally identical workpieces using a numerically controlled workpiece processing apparatus includes processing a first workpiece according to a first desired tool path specified for a tool of the numerically controlled workpiece processing apparatus by closed-loop controlling a working distance between the tool and the workpiece to achieve a defined desired distance, such that when processing the first workpiece, the tool is moved along a distance-controlled actual tool path. The method further includes optimizing the first desired tool path for a second workpiece based on the distance-controlled actual tool path of the first workpiece to provide a second desired tool path and processing the second workpiece according to the second desired tool path.Type: ApplicationFiled: September 27, 2013Publication date: January 23, 2014Applicant: TRUMPF Laser- und Systemtechnik GmbHInventor: Wolf Wadehn
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Publication number: 20130327194Abstract: A method for monitoring cutting processing on a workpiece whereby a part of the workpiece is separated from a remainder of the workpiece along a desired cut contour, wherein, after the cutting processing, the following steps are carried out: irradiating the workpiece with a laser beam at a location within the desired cut contour, detecting radiation generated by an interaction between the laser beam and the workpiece, and evaluating the detected radiation to determine whether, during the cutting processing, the part of the workpiece was completely separated from the remainder of the workpiece. The invention also relates to a laser processing machine for carrying out the method.Type: ApplicationFiled: August 14, 2013Publication date: December 12, 2013Applicant: TRUMPF Laser- und Systemtechnik GmbHInventors: Tobias Hagenlocher, Markus Zimmermann
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Publication number: 20130327963Abstract: An Extreme Ultra-Violet (EUV) excitation light source has a beam guide device for manipulating at least one laser beam is provided. The beam guide device comprises at least one beam splitter for generating at least two separated beams from at least one laser beam, at least one mirror or a lens for manipulating at least one of the separated beams, a superposition mirror for superposing the at least two separated beams, and a focusing appliance for generating a respective focus for each of the at least two separated beams. At least two focuses can be generated at one identical location or at two different locations by the beam guide device.Type: ApplicationFiled: March 15, 2013Publication date: December 12, 2013Applicant: TRUMPF LASER- UND SYSTEMTECHNIK GMBHInventors: Martin Lambert, Joachim Schulz
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Publication number: 20130313238Abstract: A laser machining system includes a workpiece support, a laser machining unit arranged above the workpiece support and for machining a workpiece located on the workpiece support, at least one extraction opening beneath the workpiece support, and an enclosure separating the workpiece support, the laser machining unit and the at least one extraction opening from an external environment. The enclosure includes at least one air inflow opening arranged above the workpiece support and relative to the at least one extraction opening such that, during operation of the laser machining system, a pressure difference between the air inflow opening and the at least one extraction opening establishes a flow of air between the workpiece support and the laser machining unit, in which the flow of air separates the interior of the enclosure into a laser machining area beneath the flow band and a laser free area above the flow band.Type: ApplicationFiled: August 1, 2013Publication date: November 28, 2013Applicant: Trumpf Laser-und Systemtechnik GmbHInventors: Andreas Twisselmann, Dietrich Sauter
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Publication number: 20130313235Abstract: A method for cutting off an edge portion of a workpiece includes applying a laser to the workpiece to form multiple individual severing cuts in the edge portion such that the edge portion is cut off from the workpiece, the multiple individual severing cuts being arranged together along the edge portion. Applying the laser to the workpiece to form the multiple individual severing cuts includes, for each individual severing cut, translating a laser cutting head and/or the workpiece relative to one another, and detecting, at an end of each severing cut, an edge of the workpiece, in which the translation of the laser cutting head or the workpiece continues at least until the edge is detected.Type: ApplicationFiled: July 29, 2013Publication date: November 28, 2013Applicant: Trumpf Laser- und Systemtechnik GmbHInventors: Wolf Wadehn, Peter Demel, Markus Grill, Ralf Kohlloeffel, Tobias Hagenlocher, Ralf von Driesch
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Publication number: 20130272327Abstract: A device for amplifying a laser beam is provided. The device includes at least one amplifier chamber in which a laser-active material is provided, at least one transmitting optical member delimiting the amplifier chamber and being arranged at a tilt angle, ?, with respect to a plane oriented perpendicularly with respect to an optical axis of the laser beam, and at least one detection unit. The laser beam is reflected by the transmitting optical member into a back reflected laser beam, and the detection unit is arranged such that it detects the back reflected laser beam.Type: ApplicationFiled: March 14, 2013Publication date: October 17, 2013Applicant: TRUMPF LASER- UND SYSTEMTECHNIK GMBHInventor: TRUMPF LASER- UND SYSTEMTECHNIK GMBH
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Publication number: 20130256965Abstract: A clamping module for a clamping device with a housing which accommodates a drive device which transfers at least one clamping jaw from a starting position to a clamping position, wherein at least one solid body joint is provided between the drive device and the at least one clamping jaw, the solid body joint being elastically resilient in the direction of a clamping movement of the clamping jaw. A clamping device comprises at least one clamping module and/or a positioning module.Type: ApplicationFiled: April 1, 2013Publication date: October 3, 2013Applicant: Trumpf Laser-und Systemtechnik GmbHInventors: Valentin Haag, Maximilian Merk
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Publication number: 20130248739Abstract: A laser protection cabin separates a working space for laser processing from a working space environment and includes a first wall area, in particular a ceiling area, and a second wall area, in particular a lateral wall area. The second wall area, on its interior side facing the working area, in particular in a sub-area adjacent to the first wall area, has a laser beam reflector in order to reflect laser radiation, created during laser processing, onto the first wall area. The first wall area has a surface, on its interior side facing the working area, which absorbs and/or diffusely scatters the laser radiation.Type: ApplicationFiled: April 17, 2013Publication date: September 26, 2013Applicant: Trumpf Laser-und Systemtechnik GmbHInventors: Joerg Weber, Joerg Poeppelmann, Peter Heck
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Patent number: 8536482Abstract: A laser processing machine is provided which has a machine frame and a laser generator fastened to the machine frame. The laser generator is movable relative to the machine frame.Type: GrantFiled: November 7, 2008Date of Patent: September 17, 2013Assignee: TRUMPF Laser -und Systemtechnik GmbHInventor: Gerhard Link
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Publication number: 20130223792Abstract: The invention concerns a method for generating a laser beam (3) with different beam profile characteristics, whereby a laser beam (2) is coupled into one fibre end (1a) of a multi-clad fibre (1), in particular a double-clad fibre, and emitted from the other fibre end (1b) of the multi-clad fibre (1) and whereby, to generate different beam profile characteristics of the output laser beam (3), the input laser beam (2) is electively coupled either at least into the inner fibre core (4) of the multi-clad fibre (1) or at least into at least one outer ring core (6) of the multi-clad fibre (1), as well as a corresponding arrangement (10).Type: ApplicationFiled: April 8, 2011Publication date: August 29, 2013Applicant: TRUMPF LASER- UND SYSTEMTECHNIK GMBHInventors: Rudolf Huber, Wolfgang Andreasch, Martin Huonker