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JPS6448692A - Multifocusing laser beam condensing device - Google Patents

Multifocusing laser beam condensing device

Info

Publication number
JPS6448692A
JPS6448692A JP62205140A JP20514087A JPS6448692A JP S6448692 A JPS6448692 A JP S6448692A JP 62205140 A JP62205140 A JP 62205140A JP 20514087 A JP20514087 A JP 20514087A JP S6448692 A JPS6448692 A JP S6448692A
Authority
JP
Japan
Prior art keywords
mirror
annular concave
laser beam
incident
mutually different
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.)
Pending
Application number
JP62205140A
Other languages
Japanese (ja)
Inventor
Sukeaki Hamanaka
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP62205140A priority Critical patent/JPS6448692A/en
Publication of JPS6448692A publication Critical patent/JPS6448692A/en
Pending 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
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/0604—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams
    • B23K26/0608—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams in the same heat affected zone [HAZ]
    • 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
    • B23K26/0604—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams
    • 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
    • B23K26/067—Dividing the beam into multiple beams, e.g. multifocusing

Landscapes

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

Abstract

PURPOSE:To achieve a coaxial multifocus and heteroaxial multifocus and to achieve good welding, cutting and surface treatment by condensing a laser beam by plural mirror systems connecting mutually different focus. CONSTITUTION:The laser beam B emitted from a laser oscillator is incident on a conical mirror 10 by conforming to the optical axis of annular concave mirrors 11, 12. The reflection beam from the conical mirror 10 is incident on the annular concave mirror 11 at its one part B1, other residual parts B2 are incident on the annular concave mirror 12 and the reflection beams B1, B2 from each concave mirror 11, 12 focus mutually different focal points F1, F2. Due to the annular concave mirrors 11, 12 having different focal distance each other being arranged coaxially the focal points F1, F2 by 1st mirror system and a 2nd mirror system become of mutually different position on the co-axis. A deep penetration can thus be achieved even in case of welding and cutting a thick plate.
JP62205140A 1987-08-20 1987-08-20 Multifocusing laser beam condensing device Pending JPS6448692A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62205140A JPS6448692A (en) 1987-08-20 1987-08-20 Multifocusing laser beam condensing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62205140A JPS6448692A (en) 1987-08-20 1987-08-20 Multifocusing laser beam condensing device

Publications (1)

Publication Number Publication Date
JPS6448692A true JPS6448692A (en) 1989-02-23

Family

ID=16502084

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62205140A Pending JPS6448692A (en) 1987-08-20 1987-08-20 Multifocusing laser beam condensing device

Country Status (1)

Country Link
JP (1) JPS6448692A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08252683A (en) * 1995-03-15 1996-10-01 Sumitomo Electric Ind Ltd Method and device for converging laser beam
US6175096B1 (en) * 1996-09-30 2001-01-16 Force Instituttet Method of processing a material by means of a laser beam
FR2803549A1 (en) * 2000-01-10 2001-07-13 Air Liquide Laser cutting of low-carbon or structural steel plates, sheets or tubes involves using a multi-focal optical device and an assisting gas
FR2803550A1 (en) * 2000-01-10 2001-07-13 Air Liquide Laser cutting of plates, sheets or tubes made of stainless steel or steel coated with aluminum or an aluminum alloy involves using a multi-focal optical device and an assisting gas
FR2817782A1 (en) * 2000-12-13 2002-06-14 Air Liquide Installation for laser beam cutting or welding using a double flow of assisting gas and a double focusing of the laser beam
WO2003004213A1 (en) 2001-07-03 2003-01-16 L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Method and installation for laser welding with an ar/he gas mixture, the ar/he content being controlled according to the laser power
EP1371446A1 (en) 2002-06-14 2003-12-17 L'Air Liquide S. A. à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude Use helium/nitrogen gas mixtures in laser welding of abutted flanks
JP2011183425A (en) * 2010-03-08 2011-09-22 Furukawa Electric Co Ltd:The Laser beam machining apparatus and laser beam machining method
JP2012038546A (en) * 2010-08-06 2012-02-23 Ushio Inc Laser-driven light source
JP2014147954A (en) * 2013-02-01 2014-08-21 Honda Motor Co Ltd Brazing device and brazing method
WO2015007117A1 (en) * 2013-07-17 2015-01-22 苏州大学张家港工业技术研究院 Method and device for wideband laser cladding
CN105598578A (en) * 2016-03-29 2016-05-25 四川大学 Microprobe tip thermal processing device based on laser beams converged in annular reflection cavity
CN106444049A (en) * 2016-10-09 2017-02-22 苏州大学 Laser broadband fusion covering device
CN106583726A (en) * 2017-01-24 2017-04-26 苏州大学 Multi-beam laser cladding device
CN106757014A (en) * 2017-01-24 2017-05-31 苏州大学 Laser multiple beam feeding cladding and preheating device

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08252683A (en) * 1995-03-15 1996-10-01 Sumitomo Electric Ind Ltd Method and device for converging laser beam
US6175096B1 (en) * 1996-09-30 2001-01-16 Force Instituttet Method of processing a material by means of a laser beam
FR2803549A1 (en) * 2000-01-10 2001-07-13 Air Liquide Laser cutting of low-carbon or structural steel plates, sheets or tubes involves using a multi-focal optical device and an assisting gas
FR2803550A1 (en) * 2000-01-10 2001-07-13 Air Liquide Laser cutting of plates, sheets or tubes made of stainless steel or steel coated with aluminum or an aluminum alloy involves using a multi-focal optical device and an assisting gas
US6521864B2 (en) 2000-01-10 2003-02-18 L'air Liquide Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitatiion Des Procedes Georges Claude Method and apparatus for the laser cutting of mild steel or structural steel with a multifocus optical component
FR2817782A1 (en) * 2000-12-13 2002-06-14 Air Liquide Installation for laser beam cutting or welding using a double flow of assisting gas and a double focusing of the laser beam
US6664504B2 (en) 2000-12-13 2003-12-16 L'air Liquide - Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Method and plant for laser cutting with dual-flow and double-focus cutting head
WO2003004213A1 (en) 2001-07-03 2003-01-16 L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Method and installation for laser welding with an ar/he gas mixture, the ar/he content being controlled according to the laser power
EP1371446A1 (en) 2002-06-14 2003-12-17 L'Air Liquide S. A. à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude Use helium/nitrogen gas mixtures in laser welding of abutted flanks
JP2011183425A (en) * 2010-03-08 2011-09-22 Furukawa Electric Co Ltd:The Laser beam machining apparatus and laser beam machining method
JP2012038546A (en) * 2010-08-06 2012-02-23 Ushio Inc Laser-driven light source
JP2014147954A (en) * 2013-02-01 2014-08-21 Honda Motor Co Ltd Brazing device and brazing method
WO2015007117A1 (en) * 2013-07-17 2015-01-22 苏州大学张家港工业技术研究院 Method and device for wideband laser cladding
CN105598578A (en) * 2016-03-29 2016-05-25 四川大学 Microprobe tip thermal processing device based on laser beams converged in annular reflection cavity
CN106444049A (en) * 2016-10-09 2017-02-22 苏州大学 Laser broadband fusion covering device
WO2018064864A1 (en) * 2016-10-09 2018-04-12 苏州大学张家港工业技术研究院 Laser broadband cladding device
CN106444049B (en) * 2016-10-09 2019-08-16 苏州大学 Laser wide-band cladding device
CN106583726A (en) * 2017-01-24 2017-04-26 苏州大学 Multi-beam laser cladding device
CN106757014A (en) * 2017-01-24 2017-05-31 苏州大学 Laser multiple beam feeding cladding and preheating device
CN106583726B (en) * 2017-01-24 2018-10-16 苏州大学 Laser multiple beam cladding apparatus
CN106757014B (en) * 2017-01-24 2019-12-31 苏州大学 Laser multi-beam feeding cladding and preheating device

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