Apparatus for machining a workpiece with a laser beam coupled into a fluid jet, with automatic laser-nozzle alignment; method of aligning such a beam

Apparatus for machining a workpiece with a laser beam coupled into a fluid jet, with automatic laser-nozzle alignment; method of aligning such a beam

The invention relates to an apparatus 100 for machining a workpiece with a laser beam 101 coupled into a fluid jet. The apparatus 100 comprises a laser unit 101a for providing the laser beam 101, a nozzle unit 102 with an aperture 102a for producing the fluid jet, and an optical unit 103 configured...

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Hauptverfasser: Kim, Hyuk, Epple, Max, Diehl, Helgi, Richerzhagen, Bernold, Mazouer, Philippe
Format: Patent
Sprache:eng
Schlagworte:
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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creator Kim, Hyuk
Epple, Max
Diehl, Helgi
Richerzhagen, Bernold
Mazouer, Philippe
description The invention relates to an apparatus 100 for machining a workpiece with a laser beam 101 coupled into a fluid jet. The apparatus 100 comprises a laser unit 101a for providing the laser beam 101, a nozzle unit 102 with an aperture 102a for producing the fluid jet, and an optical unit 103 configured to provide the laser beam 101 from the laser unit 101a onto the nozzle unit 102. Further, the apparatus 100 comprises a control unit 104 configured to control 108, 110 the optical unit 103 and/or nozzle unit 102 to change a point of incidence 109 of the laser beam 101 on the nozzle unit 102. The apparatus 100 also comprises a sensing unit 105 configured to sense laser light 106 reflected from a surface 102b of the nozzle unit 102 and produce a sensing signal 107 based on the sensed reflected laser light 106. The control unit 104 is particularly configured to evaluate the sensing signal 107 and to determine a defined sensing pattern in the sensing signal 107 indicative of the laser beam 101 being fully and/or partially aligned with the aperture 102a.
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subjects CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
title Apparatus for machining a workpiece with a laser beam coupled into a fluid jet, with automatic laser-nozzle alignment; method of aligning such a beam
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