JPS56122690A - Laser welding device - Google Patents

Laser welding device

Info

Publication number
JPS56122690A
JPS56122690A JP2482180A JP2482180A JPS56122690A JP S56122690 A JPS56122690 A JP S56122690A JP 2482180 A JP2482180 A JP 2482180A JP 2482180 A JP2482180 A JP 2482180A JP S56122690 A JPS56122690 A JP S56122690A
Authority
JP
Japan
Prior art keywords
condenser
pieces
laser beam
focus
different focal
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
JP2482180A
Other languages
Japanese (ja)
Inventor
Yorio Usui
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2482180A priority Critical patent/JPS56122690A/en
Publication of JPS56122690A publication Critical patent/JPS56122690A/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
    • B23K26/0613—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams having a common axis
    • 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 minutely adjust the distribution of input energy density in accordance with a thermal characteristic and a shape of a material to be welded and secure a highly reliable welding, by using a condenser composed of two pieces of lenses having a different focal distance each other. CONSTITUTION:Condenser 1 is composed of two cut pieces of lenses 1a and 1b having a different focal distance each other, and condenses laser beam 2 at two different focal points 3 and 4. Moreover, one of two lense pieces 1a and 1b is allowed to move along the direction of optical axis L of laser beam 2 (along the direction of arrow A), and distance l between focal distances 3 and 4 is changed in accordance with said movement. In addition, condenser 1 is allowed to rotate around optical axis L, and, for instance, when condenser 1 is rotated along the direction of arrow B, laser beam 2 which has passed through lense pieces 1a and 1b generates condensing focus as shown by code 2' and 2''. Therefore, the melting characteristic effect of both under-focus and over-focus is combined and a larger melting amount is formed.
JP2482180A 1980-02-28 1980-02-28 Laser welding device Pending JPS56122690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2482180A JPS56122690A (en) 1980-02-28 1980-02-28 Laser welding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2482180A JPS56122690A (en) 1980-02-28 1980-02-28 Laser welding device

Publications (1)

Publication Number Publication Date
JPS56122690A true JPS56122690A (en) 1981-09-26

Family

ID=12148841

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2482180A Pending JPS56122690A (en) 1980-02-28 1980-02-28 Laser welding device

Country Status (1)

Country Link
JP (1) JPS56122690A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0160792U (en) * 1987-10-02 1989-04-18
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
FR2826892A1 (en) * 2001-07-03 2003-01-10 Air Liquide METHOD AND PLANT FOR LASER WELDING WITH AR/HE GAS MIXTURE WITH CONTENTS CONTROLLED AS A FUNCTION OF 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
US7265314B2 (en) * 2004-07-27 2007-09-04 Snecma Method and apparatus for laser welding using a CW laser beam combined with a pulsed laser beam
DE102007059610A1 (en) * 2007-12-11 2009-06-18 Precitec Kg Sheet metal laser cutting head has first lens unit straddling entire laser beam and second lens unit intercepting part-beam
US7638730B2 (en) * 2003-03-21 2009-12-29 Rorze Systems Corporation Apparatus for cutting glass plate
WO2009155241A3 (en) * 2008-06-17 2010-05-06 Electro Scientific Industries, Inc. Eliminating head-to-head offsets along common chuck travel direction in multi-head laser machining systems
RU2711287C1 (en) * 2016-05-04 2020-01-16 Прецитек Гмбх Унд Ко. Кг Projection optics for metal processing by means of laser radiation and containing its laser processing head

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0160792U (en) * 1987-10-02 1989-04-18
US6175096B1 (en) * 1996-09-30 2001-01-16 Force Instituttet Method of processing a material by means of a laser beam
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
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
EP1120187A1 (en) * 2000-01-10 2001-08-01 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process and installation for laser cutting of stainless or coated steel, or aluminum and alloys with bifocal optics
EP1147848A1 (en) * 2000-01-10 2001-10-24 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process and installation for laser cutting of structural ormild steel with multifocal optics
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
EP1215008A1 (en) * 2000-12-13 2002-06-19 L'AIR LIQUIDE, Société Anonyme à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Process and installation for laser cutting with a double stream and double-focus cutting head
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
FR2826892A1 (en) * 2001-07-03 2003-01-10 Air Liquide METHOD AND PLANT FOR LASER WELDING WITH AR/HE GAS MIXTURE WITH CONTENTS CONTROLLED AS A FUNCTION OF LASER POWER
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
US7638730B2 (en) * 2003-03-21 2009-12-29 Rorze Systems Corporation Apparatus for cutting glass plate
US7265314B2 (en) * 2004-07-27 2007-09-04 Snecma Method and apparatus for laser welding using a CW laser beam combined with a pulsed laser beam
DE102007059610A1 (en) * 2007-12-11 2009-06-18 Precitec Kg Sheet metal laser cutting head has first lens unit straddling entire laser beam and second lens unit intercepting part-beam
WO2009155241A3 (en) * 2008-06-17 2010-05-06 Electro Scientific Industries, Inc. Eliminating head-to-head offsets along common chuck travel direction in multi-head laser machining systems
US8378259B2 (en) 2008-06-17 2013-02-19 Electro Scientific Industries, Inc. Eliminating head-to-head offsets along common chuck travel direction in multi-head laser machining systems
RU2711287C1 (en) * 2016-05-04 2020-01-16 Прецитек Гмбх Унд Ко. Кг Projection optics for metal processing by means of laser radiation and containing its laser processing head

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