WO2009068789A3 - Laser welding of zinc-coated parts - Google Patents

Laser welding of zinc-coated parts Download PDF

Info

Publication number
WO2009068789A3
WO2009068789A3 PCT/FR2008/052002 FR2008052002W WO2009068789A3 WO 2009068789 A3 WO2009068789 A3 WO 2009068789A3 FR 2008052002 W FR2008052002 W FR 2008052002W WO 2009068789 A3 WO2009068789 A3 WO 2009068789A3
Authority
WO
WIPO (PCT)
Prior art keywords
parts
metal
zinc
capillary
welding
Prior art date
Application number
PCT/FR2008/052002
Other languages
French (fr)
Other versions
WO2009068789A2 (en
Inventor
Francis Briand
Gaia Ballerini
Karim Chouf
Philippe Lefebvre
Original Assignee
Air Liquide
Francis Briand
Gaia Ballerini
Karim Chouf
Philippe Lefebvre
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 Air Liquide, Francis Briand, Gaia Ballerini, Karim Chouf, Philippe Lefebvre filed Critical Air Liquide
Priority to EP08854149A priority Critical patent/EP2219817A2/en
Publication of WO2009068789A2 publication Critical patent/WO2009068789A2/en
Publication of WO2009068789A3 publication Critical patent/WO2009068789A3/en

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
    • B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
    • B23K26/1435—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor involving specially adapted flow control means
    • B23K26/1436—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor involving specially adapted flow control means for pressure control
    • 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
    • B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
    • B23K26/142—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor for the removal of by-products
    • 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
    • B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
    • B23K26/1435—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor involving specially adapted flow control means
    • B23K26/1437—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor involving specially adapted flow control means for flow rate control
    • 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
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B23K26/242—Fillet welding, i.e. involving a weld of substantially triangular cross section joining two parts
    • 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
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B23K26/244—Overlap seam 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/32—Bonding taking account of the properties of the material involved
    • 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
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/006—Vehicles
    • 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
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/34—Coated articles, e.g. plated or painted; Surface treated articles
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26

Abstract

The invention relates to a method that uses a laser beam for welding a zinc-coated metal part with at least a second metal part, in which: the parts are positioned so as to be in contact or near-contact relative to each other so that there is no or practically no gap between said parts; the weld bead is formed by melting the metal with the formation of a capillary or keyhole filled with metal vapours immediately downstream from the impact point of the beam on the part(s); and a first gas flow is directed solely towards the opening of the metal vapour capillary in order to apply a dynamic gaseous pressure thereon sufficient for maintaining the capillary sufficiently open for ensuring the discharge of at least a portion of the zinc vapours from the surface coating during the entire relative movement of the laser beam relative to the parts. The method is particularly adapted for welding parts in the automotive industry.
PCT/FR2008/052002 2007-11-14 2008-11-06 Laser welding of zinc-coated parts WO2009068789A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08854149A EP2219817A2 (en) 2007-11-14 2008-11-06 Laser welding of zinc-coated parts

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0759032 2007-11-14
FR0759032A FR2923405B1 (en) 2007-11-14 2007-11-14 LASER WELDING OF ZINC COATED PARTS

Publications (2)

Publication Number Publication Date
WO2009068789A2 WO2009068789A2 (en) 2009-06-04
WO2009068789A3 true WO2009068789A3 (en) 2009-07-23

Family

ID=39619382

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2008/052002 WO2009068789A2 (en) 2007-11-14 2008-11-06 Laser welding of zinc-coated parts

Country Status (3)

Country Link
EP (1) EP2219817A2 (en)
FR (1) FR2923405B1 (en)
WO (1) WO2009068789A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016146905A1 (en) 2015-03-18 2016-09-22 François Parmentier Method of power-efficient chromatographic separation
FR3037516B1 (en) * 2015-06-22 2017-12-08 L'air Liquide Sa Pour L'etude Et L'exploitation Des Procedes Georges Claude LASER WELDING PROCESS WITH SOLID LASER GENERATOR AND DYNAMIC GAS JET
FR3048905A1 (en) * 2016-03-21 2017-09-22 Karim Chouf IMPROVING LASER WELDING PROCESSES WITH A DYNAMIC JET NOZZLE
DE102018108824A1 (en) * 2018-04-13 2019-10-17 Rofin-Sinar Laser Gmbh Method and apparatus for laser welding
FR3100729A1 (en) 2019-09-17 2021-03-19 Psa Automobiles Sa Process and installation for welding two metal parts

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5187346A (en) * 1991-08-29 1993-02-16 General Motors Corporation Laser welding method
WO1996026807A1 (en) * 1995-02-28 1996-09-06 Caristan, Helene Method of high energy density radiation beam lap welding
US20040074882A1 (en) * 2003-02-05 2004-04-22 Speranza Joseph James Joining workpieces by laser welding with powder injection
EP1923165A1 (en) * 2006-11-17 2008-05-21 L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Laser welding process improving penetration

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5187346A (en) * 1991-08-29 1993-02-16 General Motors Corporation Laser welding method
WO1996026807A1 (en) * 1995-02-28 1996-09-06 Caristan, Helene Method of high energy density radiation beam lap welding
US20040074882A1 (en) * 2003-02-05 2004-04-22 Speranza Joseph James Joining workpieces by laser welding with powder injection
EP1923165A1 (en) * 2006-11-17 2008-05-21 L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Laser welding process improving penetration

Also Published As

Publication number Publication date
FR2923405B1 (en) 2009-12-18
FR2923405A1 (en) 2009-05-15
EP2219817A2 (en) 2010-08-25
WO2009068789A2 (en) 2009-06-04

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