WO2022198249A3 - Verfahren zum festlegen eines laser-ansteuersignals für unterschiedliche lasertypen und laserplotter sowie galvo-markierlaser hierfür - Google Patents

Verfahren zum festlegen eines laser-ansteuersignals für unterschiedliche lasertypen und laserplotter sowie galvo-markierlaser hierfür Download PDF

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Publication number
WO2022198249A3
WO2022198249A3 PCT/AT2022/060078 AT2022060078W WO2022198249A3 WO 2022198249 A3 WO2022198249 A3 WO 2022198249A3 AT 2022060078 W AT2022060078 W AT 2022060078W WO 2022198249 A3 WO2022198249 A3 WO 2022198249A3
Authority
WO
WIPO (PCT)
Prior art keywords
laser
marking
galvo
workpiece
control signal
Prior art date
Application number
PCT/AT2022/060078
Other languages
English (en)
French (fr)
Other versions
WO2022198249A2 (de
Inventor
Josef Siegfried GREIL
Original Assignee
Trotec Laser Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Trotec Laser Gmbh filed Critical Trotec Laser Gmbh
Priority to EP22725348.1A priority Critical patent/EP4294595A2/de
Publication of WO2022198249A2 publication Critical patent/WO2022198249A2/de
Publication of WO2022198249A3 publication Critical patent/WO2022198249A3/de

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/062—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam
    • B23K26/0622—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/0869—Devices involving movement of the laser head in at least one axial direction
    • B23K26/0876—Devices involving movement of the laser head in at least one axial direction in at least two axial directions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
    • H01S3/131—Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
    • H01S3/1312—Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the active medium, e.g. by controlling the processes or apparatus for excitation by controlling the optical pumping

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Laser Beam Processing (AREA)

Abstract

Die Erfindung beschreibt einen Laserplotter, einen Galvo-Markierlaser und ein Verfahren zum Festlegen eines Laser-Ansteuersignals (19a) für eine Laserquelle (4) unterschiedliche Lasermaschinentypen (1), insbesondere Laserplotter (2) oder Galvo-Markierlaser, zum Schneiden, Gravieren, Markieren und/oder Beschriften eines Werkstückes (7), bei dem in einem Gehäuse (3) des Lasermaschinentyps (1 ) zumindest eine Laserquelle (4) zum Bearbeiten eines Werkstückes (7) eingesetzt wird, wobei von einer Steuereinheit (13) die aus den eingestellten Parametern und/oder einem geladenen Job ein PWM-Signal (19, 19a) zur Ansteuerung der Laserquelle (4) erzeugt wird, wobei vorzugsweise das Werkstück (7) auf einem Bearbeitungstisch (9) abgelegt wird und die Bearbeitung des Werkstückes (7) zeilenweise erfolgt, wobei für jede Zeile ein eigenes PWM-Signal (19, 19a) zur Ansteuerung der Laserquelle (4) erzeugt wird. Bei einer definierten Flanke (28), insbesondere der fallenden Flanke (28a), des PWM-Signals (19, 19a) wird ein Korrekturprozess (21 ) zum Erzeugen eines vorzugsweise geänderten PWM-Signals (19a), insbesondere eines Laser-Ansteuersignals (19a), durchgeführt, wobei der Korrekturprozess (21 ) die zuvor liegende Pausendauer (23, 23a, b,c,... ) und die Pulsdauer (24,24a,b,c,... ) ermittelt, woraus ein Korrekturwert (25,25a,b,c,... ) bzw. Korrekturfaktor (25,25a,b,c,... ) ermittelt bzw. berechnet wird.
PCT/AT2022/060078 2021-03-24 2022-03-17 Verfahren zum festlegen eines laser-ansteuersignals für unterschiedliche lasertypen und laserplotter sowie galvo-markierlaser hierfür WO2022198249A2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22725348.1A EP4294595A2 (de) 2021-03-24 2022-03-17 Verfahren zum festlegen eines laser-ansteuersignals für unterschiedliche lasertypen und laserplotter sowie galvo-markierlaser hierfür

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50202/2021 2021-03-24
ATA50202/2021A AT524985B1 (de) 2021-03-24 2021-03-24 Verfahren zum Festlegen eines Laser-Ansteuersignals für unterschiedliche Lasertypen und Laserplotter sowie Galvo-Markierlaser hierfür

Publications (2)

Publication Number Publication Date
WO2022198249A2 WO2022198249A2 (de) 2022-09-29
WO2022198249A3 true WO2022198249A3 (de) 2022-11-24

Family

ID=81846446

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2022/060078 WO2022198249A2 (de) 2021-03-24 2022-03-17 Verfahren zum festlegen eines laser-ansteuersignals für unterschiedliche lasertypen und laserplotter sowie galvo-markierlaser hierfür

Country Status (4)

Country Link
EP (1) EP4294595A2 (de)
AT (1) AT524985B1 (de)
TW (1) TW202302258A (de)
WO (1) WO2022198249A2 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5283794A (en) * 1993-03-01 1994-02-01 Litton Systems, Inc. Laser apparatus and method employing fuzzy logic based pulse width modulation
US5376770A (en) * 1992-01-13 1994-12-27 Maho Aktiengesellschaft Process and device for machining workpieces by means of a laser beam
DE19542973A1 (de) * 1994-11-17 1996-05-23 Nec Corp Verfahren und Einrichtung zum Markieren von Werkstücken mittels Laserstrahl
JP2001287056A (ja) * 2000-04-03 2001-10-16 Matsushita Electric Ind Co Ltd レーザ加工装置
WO2020041656A1 (en) * 2018-08-24 2020-02-27 Robert Bosch Gmbh Laser cutter and safe power system therefor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6151345A (en) * 1998-07-07 2000-11-21 Dtm Corporation Laser power control with stretched initial pulses
JP5851138B2 (ja) * 2011-07-20 2016-02-03 株式会社フジクラ 高パワーパルス光発生装置
CN106312311B (zh) * 2016-09-23 2018-10-09 佛山市宏石激光技术有限公司 一种激光器焊接功率控制装置及控制方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5376770A (en) * 1992-01-13 1994-12-27 Maho Aktiengesellschaft Process and device for machining workpieces by means of a laser beam
US5283794A (en) * 1993-03-01 1994-02-01 Litton Systems, Inc. Laser apparatus and method employing fuzzy logic based pulse width modulation
DE19542973A1 (de) * 1994-11-17 1996-05-23 Nec Corp Verfahren und Einrichtung zum Markieren von Werkstücken mittels Laserstrahl
JP2001287056A (ja) * 2000-04-03 2001-10-16 Matsushita Electric Ind Co Ltd レーザ加工装置
WO2020041656A1 (en) * 2018-08-24 2020-02-27 Robert Bosch Gmbh Laser cutter and safe power system therefor

Also Published As

Publication number Publication date
WO2022198249A2 (de) 2022-09-29
AT524985A1 (de) 2022-11-15
AT524985B1 (de) 2023-10-15
EP4294595A2 (de) 2023-12-27
TW202302258A (zh) 2023-01-16

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