AU3869089A - Process and device for machining workpieces using a laser beam - Google Patents

Process and device for machining workpieces using a laser beam

Info

Publication number
AU3869089A
AU3869089A AU38690/89A AU3869089A AU3869089A AU 3869089 A AU3869089 A AU 3869089A AU 38690/89 A AU38690/89 A AU 38690/89A AU 3869089 A AU3869089 A AU 3869089A AU 3869089 A AU3869089 A AU 3869089A
Authority
AU
Australia
Prior art keywords
machining
laser beam
process gas
recorded
optical
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
AU38690/89A
Other versions
AU623417B2 (en
Inventor
Klaus Behler
Eckhard Beyer
Gerd Herziger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of AU3869089A publication Critical patent/AU3869089A/en
Application granted granted Critical
Publication of AU623417B2 publication Critical patent/AU623417B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B23K26/03—Observing, e.g. monitoring, the workpiece
    • B23K26/032—Observing, e.g. monitoring, the workpiece using optical means
    • 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
    • B23K26/03—Observing, e.g. monitoring, the workpiece
    • 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
    • B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
    • 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
    • B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
    • B23K26/123—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases
    • B23K26/125—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases of mixed gases

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

In a process for machining workpieces using a laser beam, optical and/or acoustic signals generated in a machining region are recorded and used to obtain actual values which are compared with corresponding reference values of a processing diagram specific to the material and to the machining. The results of the comparison are used to control the machining process by influencing it in a predetermined manner. In order to influence the machining region with a process gas in an appropriate and cost-effective manner, process gas is supplied to the monitored machining region in which the optical and/or acoustic signals are recorded, and the type of process gas and/or at least one gas supply parameter are continuously adjusted.
AU38690/89A 1988-07-15 1989-07-14 Process and device for machining workpieces using a laser beam Ceased AU623417B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3824048 1988-07-15
DE3824048A DE3824048A1 (en) 1988-07-15 1988-07-15 METHOD AND DEVICE FOR MACHINING WORKPIECES WITH LASER RADIATION

Publications (2)

Publication Number Publication Date
AU3869089A true AU3869089A (en) 1990-02-05
AU623417B2 AU623417B2 (en) 1992-05-14

Family

ID=6358765

Family Applications (1)

Application Number Title Priority Date Filing Date
AU38690/89A Ceased AU623417B2 (en) 1988-07-15 1989-07-14 Process and device for machining workpieces using a laser beam

Country Status (9)

Country Link
EP (2) EP0350942B1 (en)
AT (1) ATE88666T1 (en)
AU (1) AU623417B2 (en)
BR (1) BR8907546A (en)
DE (1) DE3824048A1 (en)
ES (1) ES2040418T3 (en)
RU (1) RU2008179C1 (en)
WO (1) WO1990000458A1 (en)
ZA (1) ZA895374B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU620766B2 (en) * 1988-07-08 1992-02-20 Benko, Ralph J. Removal of surface contaminants by irradiation from a high-energy source
AU622379B2 (en) * 1989-08-11 1992-04-02 General Electric Company Method and apparatus for acoustic breakthrough detection

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4022228A1 (en) * 1990-07-12 1992-01-23 Msg Marine Und Sondertechnik G Monitoring temp. at focal point of a laser beam - which ensure optimal radiation during work process by controlling laser beam powder in response to temp. measured
DE4028179C2 (en) * 1990-09-05 1996-10-02 Siemens Ag Method for monitoring the position and diameter of laser beams
AT401247B (en) * 1991-02-15 1996-07-25 Schuoecker Dieter Dipl Ing Dr Laser-machining apparatus
JP2736182B2 (en) * 1991-02-28 1998-04-02 ファナック株式会社 Laser device and laser welding method
DE4108541A1 (en) * 1991-03-15 1992-09-17 Linde Ag METHOD FOR WORKPIECE PROCESSING WITH A LASER
DE4244826C2 (en) * 1992-06-26 1996-03-07 Preussag Stahl Ag Laser welding composite sheet
US5609781A (en) * 1992-10-23 1997-03-11 Mitsubishi Denki Kabushiki Kaisha Machining head and laser machining apparatus
TW270907B (en) * 1992-10-23 1996-02-21 Mitsubishi Electric Machine
DE4329127A1 (en) * 1993-08-30 1995-03-02 Messer Griesheim Gmbh Shielding gas for the laser welding of aluminum
ES2121702B1 (en) * 1997-02-17 1999-06-16 Univ Malaga SENSOR FOR ON-LINE AND REMOTE MONITORING OF AUTOMATED LASER WELDING PROCESSES.
ATA1942003A (en) * 2003-02-07 2005-10-15 Mce Voest Gmbh & Co METHOD AND DEVICE FOR WELDING OR COATING WORKPIECES
US8164022B2 (en) 2006-12-06 2012-04-24 The Regents Of The University Of Michigan Optical sensor for quality monitoring of a welding process
DE102008006625B4 (en) * 2008-01-29 2011-07-14 ThyssenKrupp Steel Europe AG, 47166 Method and device for monitoring the laser beam welding of coated boards
DE102011005821A1 (en) * 2011-03-18 2012-09-20 Robert Bosch Gmbh Tool clamping device
DE102011103282B4 (en) * 2011-06-03 2015-09-03 Lessmüller Lasertechnik GmbH Method for monitoring the machining and device for machining a workpiece with a high-energy machining beam
DE202011110131U1 (en) * 2011-06-06 2013-02-11 Robert Bosch Gmbh Hand machine tool fixture
CN102615423B (en) * 2012-04-25 2014-04-02 湖南大学 Method for diagnosing galvanized steel laser powder addition welding defects on line based on characteristic spectrum
RU2544712C2 (en) * 2012-08-07 2015-03-20 Николай Евгеньевич Староверов Angle grinder
WO2014206432A1 (en) 2013-06-28 2014-12-31 Trumpf Laser- Und Systemtechnik Gmbh Process for machining, in particular for mechanical welding, and control apparatus for a setting device of a process gas feed
JP6134805B2 (en) 2015-03-10 2017-05-24 技術研究組合次世代３Ｄ積層造形技術総合開発機構 Optical processing head and three-dimensional modeling apparatus
US9989495B2 (en) 2015-11-19 2018-06-05 General Electric Company Acoustic monitoring method for additive manufacturing processes
US10073060B2 (en) 2015-11-19 2018-09-11 General Electric Company Non-contact acoustic inspection method for additive manufacturing processes
US10232439B2 (en) 2015-11-20 2019-03-19 General Electric Company Gas flow monitoring in additive manufacturing
US9989396B2 (en) 2015-11-20 2018-06-05 General Electric Company Gas flow characterization in additive manufacturing
DE102016220367A1 (en) * 2016-10-18 2018-04-19 Robert Bosch Gmbh Quick-clamping device for a portable power tool having at least one output shaft which can be driven in rotation, in particular an angle grinder
EP3822016A1 (en) * 2019-11-15 2021-05-19 TRUMPF Schweiz AG Method and device for determining the properties of a workpiece and for adjusting laser parameters in laser machining, and corresponding computer program product

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH605010A5 (en) * 1976-10-07 1978-09-29 Lasag Sa
GB2099349B (en) * 1981-05-28 1985-11-06 Nippon Steel Corp Laser working process
DE3424825A1 (en) * 1984-07-06 1986-02-06 Gerd Prof. Dr.-Ing. 6101 Roßdorf Herziger METHOD AND DEVICE FOR MACHINING WORKPIECES BY LASER BEAM

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU620766B2 (en) * 1988-07-08 1992-02-20 Benko, Ralph J. Removal of surface contaminants by irradiation from a high-energy source
AU622379B2 (en) * 1989-08-11 1992-04-02 General Electric Company Method and apparatus for acoustic breakthrough detection

Also Published As

Publication number Publication date
EP0425531A1 (en) 1991-05-08
BR8907546A (en) 1991-06-11
WO1990000458A1 (en) 1990-01-25
ATE88666T1 (en) 1993-05-15
RU2008179C1 (en) 1994-02-28
AU623417B2 (en) 1992-05-14
EP0350942B1 (en) 1993-04-28
ES2040418T3 (en) 1993-10-16
EP0350942A1 (en) 1990-01-17
DE3824048A1 (en) 1990-05-03
ZA895374B (en) 1990-08-29
DE3824048C2 (en) 1990-08-09

Similar Documents

Publication Publication Date Title
AU3869089A (en) Process and device for machining workpieces using a laser beam
ATE132785T1 (en) TARGET AREA PROFILING OF OPTICAL SURFACES USING ECIMER LASER LIGHT AMBOSSMENT
AU5332494A (en) Process and apparatus for welding and other heat treatments
SE8204895D0 (en) SET AND DEVICE FOR LOCATION OF A TOOL
AUPN744696A0 (en) Safety apparatus and protection method for machines
ATE107153T1 (en) DEVICE FOR EMISSION OF LASER BEAM.
TW254873B (en) Laser beam machining apparatus and method
JPS57175089A (en) Beam working device
TW254874B (en) Laser beam machining apparatus and method
EP0367624A3 (en) Method and apparatus for laser process control
EP0421135A3 (en) Method and process for determining the position and diameter of a laser beam focus, used for workpieces machining with a high power laser
DE50108302D1 (en) Method and device for flame cutting workpieces
EP0305532A4 (en) Laser oscillation controller
MY104528A (en) Optical disc servo apparatus.
EP0328354A3 (en) Optical information processing apparatus
DE69506711D1 (en) Method and device for cutting materials by laser
AU7308891A (en) Device for monitoring workpieces machined by laser beam
ATE194788T1 (en) METHOD FOR LASER CUTTING WORKPIECES
JPS56147628A (en) Laser machining device
JPH0364235B2 (en)
JPS6355992A (en) Laser beam machining apparatus
JPS6422493A (en) Laser beam machine
JPS61242778A (en) Controller for position of machining head in laser beam machining device
FR2392767A2 (en) Size control for NC machining of large parts - has laser focused on target to identify deviations for continuous correction in comparator circuit
JPS6487094A (en) Laser beam machine