Determining distance correction values for laser machining a workpiece

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United States of America Patent

PATENT NO 10814422
APP PUB NO 20170151629A1
SERIAL NO

15430700

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Abstract

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Methods, machines, and computer-readable mediums for determining distance correction values of a desired distance between a laser processing nozzle on a laser processing head and a workpiece during laser processing of the workpiece are provided. In some implementations, the workpiece is scanned along a desired path of a surface of the workpiece separately by the laser processing nozzle and a measurement head arranged in place of the laser processing nozzle on the laser processing head, with a capacitively measured distance identical to the desired distance. The measurement head has a lower lateral sensitivity of a capacitance measurement than the laser processing nozzle. Respective scanned movement paths of the laser processing nozzle and the measurement head are determined. The distance correction values for the desired distance of the laser processing nozzle are then determined from the scanned movement paths determined with the laser processing nozzle and the measurement head.

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Patent Owner(s)

Patent OwnerAddress
TRUMPF LASER- UND SYSTEMTECHNIK GMBH71254 DITZINGEN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hagenlocher, Tobias Ditzingen, DE 6 49
Kieweler, Thomas Wimsheim, DE 6 12
Reyer, Michael Stuttgart, DE 1 2
Wadehn, Wolf Nussdorf, DE 6 21

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