CA2215563A1 - Combined laser and plasma arc welding torch - Google Patents

Combined laser and plasma arc welding torch

Info

Publication number
CA2215563A1
CA2215563A1 CA002215563A CA2215563A CA2215563A1 CA 2215563 A1 CA2215563 A1 CA 2215563A1 CA 002215563 A CA002215563 A CA 002215563A CA 2215563 A CA2215563 A CA 2215563A CA 2215563 A1 CA2215563 A1 CA 2215563A1
Authority
CA
Canada
Prior art keywords
plasma
laser beam
cathode
arc
laser
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
CA002215563A
Other languages
French (fr)
Other versions
CA2215563C (en
Inventor
Igor Dykhno
Igor Krivtsun
Igor Parneta
George Ignatchenko
Michael Chizhenko
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.)
PLASMA-LASER TECHNOLOGIES Ltd
Original Assignee
Plasma-Laser Technologies Ltd.
Igor Dykhno
Igor Krivtsun
Igor Parneta
George Ignatchenko
Michael Chizhenko
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 Plasma-Laser Technologies Ltd., Igor Dykhno, Igor Krivtsun, Igor Parneta, George Ignatchenko, Michael Chizhenko filed Critical Plasma-Laser Technologies Ltd.
Publication of CA2215563A1 publication Critical patent/CA2215563A1/en
Application granted granted Critical
Publication of CA2215563C publication Critical patent/CA2215563C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • 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
    • B23K26/346—Working by laser beam, e.g. welding, cutting or boring in combination with welding or cutting covered by groups B23K5/00 - B23K25/00, e.g. in combination with resistance welding
    • B23K26/348—Working by laser beam, e.g. welding, cutting or boring in combination with welding or cutting covered by groups B23K5/00 - B23K25/00, e.g. in combination with resistance welding in combination with arc heating, e.g. TIG [tungsten inert gas], MIG [metal inert gas] or plasma welding
    • 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
    • B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
    • B23K28/02—Combined welding or cutting procedures or apparatus

Abstract

A welding torch which combines features of both laser and plasma-arc welding torches. A laser beam is directed by an objective lens so that it is co-linear with the central axis of a plasma-arc torch. The laser beam passes through a planar or conical cathode electrode placed at the bottom orifice of the torch. A coaxial aperture having a diameter less than that of the laser beam is drilled into the cathode to allow the laser beam to pass through the cathode. A constricting nozzle is placed under the cathode, with the laser beam passing through the axis of the nozzle. As with a standard plasma-arc torch, a gas is forced through a chamber having the cathode and nozzle at its bottom end. As the cathode is heated by the laser radiation, the gas is ionized and a plasma-arc is formed. As the laser beam passes through the nozzle, it comes to a focus and interacts with the plasma-arc formed between the cathode and a workpiece. The resulting interactions between the plasma-arc and laser beam form a plasma-laser discharge which acts to additionally constrict the laser beam and plasma-arc and increase the energy density of the welding spot formed on the workpiece.
CA002215563A 1996-11-20 1997-09-15 Combined laser and plasma arc welding torch Expired - Fee Related CA2215563C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/753,125 US5705785A (en) 1994-12-30 1996-11-20 Combined laser and plasma arc welding torch
US08/753125 1996-11-20

Publications (2)

Publication Number Publication Date
CA2215563A1 true CA2215563A1 (en) 1998-05-20
CA2215563C CA2215563C (en) 2005-05-10

Family

ID=25029266

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002215563A Expired - Fee Related CA2215563C (en) 1996-11-20 1997-09-15 Combined laser and plasma arc welding torch

Country Status (8)

Country Link
US (1) US5705785A (en)
EP (1) EP0844042B1 (en)
JP (1) JP3936035B2 (en)
KR (1) KR19980041894A (en)
AT (1) ATE201349T1 (en)
CA (1) CA2215563C (en)
DE (1) DE69704920T2 (en)
ES (1) ES2159796T3 (en)

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US6388227B1 (en) * 1999-07-15 2002-05-14 Plasma Laser Technologies Ltd. Combined laser and plasma-arc processing torch and method
US6781300B1 (en) 1999-08-06 2004-08-24 Ralf Klaus Edinger Laser based electron beam gun
FR2813031B1 (en) * 2000-08-21 2003-01-24 Air Liquide HYBRID LASER-ARC WELDING PROCESS AND INSTALLATION USING A POWER DIODE LASER
KR20030014755A (en) * 2001-05-23 2003-02-19 미쓰비시덴키 가부시키가이샤 Laser machining apparatus
FR2829415B1 (en) * 2001-09-13 2003-10-31 Air Liquide METHOD OF STARTING THE ELECTRIC ARC IN HYBRID LASER-ARC WELDING
FR2829414B1 (en) * 2001-09-13 2003-10-31 Air Liquide HYBRID LASER-ARC WELDING PROCESS WITH GAS FLOW ADJUSTMENT
US20050023256A1 (en) * 2003-07-31 2005-02-03 Srikanth Sankaranarayanan 3-D adaptive laser powder fusion welding
US20050056628A1 (en) * 2003-09-16 2005-03-17 Yiping Hu Coaxial nozzle design for laser cladding/welding process
US7075030B2 (en) * 2004-08-30 2006-07-11 Brookhaven Science Associates, Llc Shielded beam delivery apparatus and method
EP1657020A1 (en) * 2004-11-10 2006-05-17 Synova S.A. Process and device for optimising the coherence of a fluidjet used for materialworking and fluid flow nozzle for such a device
EP2079558B1 (en) 2006-10-24 2010-08-18 Trumpf, Inc. Moving enclosures for laser equipment
US9352420B2 (en) * 2007-10-10 2016-05-31 Ronald Peter Whitfield Laser cladding device with an improved zozzle
WO2011029462A1 (en) * 2009-09-14 2011-03-17 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Method and device for processing workpieces by means of a laser apparatus and an arc apparatus
DE102010001606A1 (en) * 2010-02-04 2011-08-04 Laser-Laboratorium Göttingen eV, 37077 Hollow funnel-shaped plasma generator
US11160156B2 (en) * 2011-03-25 2021-10-26 Illinois Tool Works Inc. Plasma torch systems having improved plasma nozzles
FR2980992B1 (en) 2011-10-05 2013-11-29 Centre Nat Rech Scient SYSTEM FOR TRANSFERRING ELECTRIC ENERGY IN THERMAL ENERGY
US9339890B2 (en) 2011-12-13 2016-05-17 Hypertherm, Inc. Optimization and control of beam quality for material processing
WO2013133415A1 (en) * 2012-03-09 2013-09-12 株式会社トヨコー Laser irradiation device, laser irradiation system, and method for removing coating or adhering matter
DE102012207201B3 (en) * 2012-04-30 2013-04-11 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Method for laser-assisted plasma cutting or plasma welding and apparatus therefor
DE102012217082B4 (en) * 2012-09-21 2016-06-16 Trumpf Laser Gmbh Laser processing head with a ring nozzle
US20140131325A1 (en) * 2012-11-13 2014-05-15 Adaptive Intelligent Systems Llc Method to plasma arc weld and full-position pipe weld
CN103831531B (en) * 2012-11-23 2016-09-14 通用汽车环球科技运作有限责任公司 Welding point
EP3431263B1 (en) * 2017-07-21 2021-04-21 CL Schutzrechtsverwaltungs GmbH Method for operating at least one apparatus for additively manufacturing three-dimensional objects
JP6740299B2 (en) * 2018-08-24 2020-08-12 ファナック株式会社 Processing condition adjusting device and machine learning device
JP6852031B2 (en) * 2018-09-26 2021-03-31 株式会社東芝 Welding equipment and nozzle equipment
CN109732211B (en) * 2019-01-31 2019-10-25 华中科技大学 A kind of the hard brittle material ultrafast laser hot tearing processing unit (plant) and method of electrical field draw
DE102019103659B4 (en) * 2019-02-13 2023-11-30 Bystronic Laser Ag Gas guide, laser cutting head and laser cutting machine
US11938564B2 (en) 2021-04-13 2024-03-26 Saudi Arabian Oil Company Systems and methods for generating plasma shields
DE102021130466A1 (en) 2021-11-22 2023-05-25 Plasmatreat Gmbh DEVICE FOR PROCESSING A SURFACE OF A WORKPIECE WITH A LASER BEAM

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Also Published As

Publication number Publication date
US5705785A (en) 1998-01-06
DE69704920D1 (en) 2001-06-28
JP3936035B2 (en) 2007-06-27
DE69704920T2 (en) 2001-09-13
EP0844042A1 (en) 1998-05-27
ATE201349T1 (en) 2001-06-15
ES2159796T3 (en) 2001-10-16
EP0844042B1 (en) 2001-05-23
JPH10180479A (en) 1998-07-07
CA2215563C (en) 2005-05-10
KR19980041894A (en) 1998-08-17

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