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WO1995029033A1 - Procede de soudage - Google Patents

Procede de soudage Download PDF

Info

Publication number
WO1995029033A1
WO1995029033A1 PCT/GB1995/000925 GB9500925W WO9529033A1 WO 1995029033 A1 WO1995029033 A1 WO 1995029033A1 GB 9500925 W GB9500925 W GB 9500925W WO 9529033 A1 WO9529033 A1 WO 9529033A1
Authority
WO
WIPO (PCT)
Prior art keywords
welding
plastic
laser
weld
metal
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.)
Ceased
Application number
PCT/GB1995/000925
Other languages
English (en)
Inventor
John Tyrer
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.)
Loughborough University
Original Assignee
Loughborough University
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 Loughborough University filed Critical Loughborough University
Priority to AU23128/95A priority Critical patent/AU2312895A/en
Priority to EP95916753A priority patent/EP0757605A1/fr
Publication of WO1995029033A1 publication Critical patent/WO1995029033A1/fr
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
    • B23K26/60—Preliminary treatment
    • 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
    • B23K2101/34—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

Definitions

  • This invention relates to welding, more particularly to welding plastic-coated metal.
  • Plastic-coated steel is nowadays available in which the plastic has strong adherence to the steel. This would be a good material from which to make canisters, such as food cans, in place of the conventional tin and chromium oxide coated steel on to which natural and/or synthetic lacquers are adhered. This conventional material is lap or butt welded using electrical resistance techniques, after first removing the lacquer layer. The plastic coating of the new steel is, however, much more difficult to remove. If it is incompletely removed, the weld may fail or the electrical welder can become contaminated by the plastic, and this will break the welding electrodes and halt the welding machine, with substantial uneconomic downtime and lost production.
  • the present invention provides a method for welding plastic-coated metal that is not prone to such failure.
  • the invention comprises a method for welding plastic-coated metal comprising approximating the pieces to be welded, removing the coating from the welding site using a laser to heat it and then laser-welding the metal-to-metal contact at the welding site in the absence of the coating.
  • the coating may be evaporated by the laser.
  • the pieces may be butt- or lap-welded.
  • a pulsed laser may be used, of which the mark/ space ratio and/or the pulse shape may be selected to produce a weld of optimum quality.
  • the method may be applied to the welding of metal, particularly steel, canisters.
  • the weld site after welding, may be coated with plastic. After the weld site has cooled some plastic may be removed from adjacent thereto and redeposited on the metal - this may be done by laser also.
  • Figure 1 is a series of cross-sections of a butt weld being formed; and Figure 2 is a series like Figure 1 of a lap weld being formed.
  • FIG. 1 illustrate a method for welding plastic 11 coated metal 12, e.g. steel, comprising approximating ( Figures 1A,2A) the pieces to be welded, removing ( Figures 1B,2B) the coating 11 from the welding site 13 using a laser 14 to heat it and then laser welding ( Figures 1C,2C) the metal-to-metal contact at the welding site 13 in the absence of the coating 11.
  • the coating 11 may be evaporated by the laser 14 - evaporated plastic may recondense on to cooler material adjacent the weld site, as may droplets of molten plastic.
  • a pulsed laser may be used. Control of the mark/ space ratio of the pulse and/or of pulse shape may allow optimum weld quality to be achieved for different types and thicknesses of plastic and substrate. It may be that removal of plastic is incomplete and that some plastic inclusions contaminate the weld - the degree to which this happens may be controlled by control over the pulsing in order to produce an acceptable weld quality.
  • Another method for controlling the process is to control the laser beam geometry so that different beam energy densities could be used for coating removal and for welding.

Landscapes

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

Abstract

Procédé de soudage d'un métal recouvert de plastique, selon lequel on rapproche les pièces à souder, on enlève le revêtement de la zone de soudage à l'aide d'un laser pour chauffer cette zone puis on soude au laser le point de contact entre les métaux situé au niveau de la zone de soudage dont on a enlevé le revêtement.
PCT/GB1995/000925 1994-04-26 1995-04-24 Procede de soudage Ceased WO1995029033A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU23128/95A AU2312895A (en) 1994-04-26 1995-04-24 Method for welding
EP95916753A EP0757605A1 (fr) 1994-04-26 1995-04-24 Procede de soudage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9408239.3 1994-04-26
GB9408239A GB9408239D0 (en) 1994-04-26 1994-04-26 Method for welding

Publications (1)

Publication Number Publication Date
WO1995029033A1 true WO1995029033A1 (fr) 1995-11-02

Family

ID=10754130

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1995/000925 Ceased WO1995029033A1 (fr) 1994-04-26 1995-04-24 Procede de soudage

Country Status (4)

Country Link
EP (1) EP0757605A1 (fr)
AU (1) AU2312895A (fr)
GB (1) GB9408239D0 (fr)
WO (1) WO1995029033A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2798084A1 (fr) * 1999-09-03 2001-03-09 Renault Procede et dispositif de soudage de toles
DE10315976A1 (de) * 2003-04-08 2004-10-21 Volkswagen Ag Verfahren zum Vorbereiten des Fügebereichs eines beschichteten Werkstücks
FR2891484A1 (fr) * 2005-10-05 2007-04-06 Valeo Electronique Sys Liaison Procede de soudage d'une tole sandwich sur une face metallique d'un organe.
EP1847330A2 (fr) 2006-04-19 2007-10-24 Gebhardt-Stahl GmbH Procédé de production d'un profil tubulaire à partir d'un matériau métallique en bande
DE102007028137A1 (de) * 2007-06-19 2008-12-24 Volkswagen Ag Strahlschweißverfahren
WO2013050855A3 (fr) * 2011-10-06 2013-07-11 Lincoln Global Inc. Appareil et procédé pour le nettoyage au laser de produits enrobés avant le soudage
CN105689896A (zh) * 2016-03-23 2016-06-22 昆山宝锦激光拼焊有限公司 一种热轧钢板的涂层去除与焊接一体化的激光加工方法
DE102015226474A1 (de) * 2015-12-22 2017-06-22 Thyssenkrupp Ag Halbzeug für die Herstellung von Hohlprofilen, Hohlprofile hieraus sowie Verfahren zu deren Herstellung
WO2020102839A1 (fr) * 2018-11-20 2020-05-28 Berndorf Innovations Und Technologie Gmbh Procédé de traitement d'une bande
CN115734835A (zh) * 2020-06-25 2023-03-03 罗伯特·博世有限公司 用于制造涂有塑料层的金属构件的方法和设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0143450A2 (fr) * 1983-11-28 1985-06-05 Elpatronic Ag Méthode et appareil pour le soudage pulsé à haute densité d'énergie
GB2202779A (en) * 1986-12-27 1988-10-05 Toyo Seikan Kaisha Ltd Butt welded cans
EP0508102A1 (fr) * 1991-04-09 1992-10-14 Elpatronic Ag Procédé de soudage longitudinal des tôles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0143450A2 (fr) * 1983-11-28 1985-06-05 Elpatronic Ag Méthode et appareil pour le soudage pulsé à haute densité d'énergie
GB2202779A (en) * 1986-12-27 1988-10-05 Toyo Seikan Kaisha Ltd Butt welded cans
EP0508102A1 (fr) * 1991-04-09 1992-10-14 Elpatronic Ag Procédé de soudage longitudinal des tôles

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2798084A1 (fr) * 1999-09-03 2001-03-09 Renault Procede et dispositif de soudage de toles
WO2001017722A1 (fr) * 1999-09-03 2001-03-15 Renault Procede et dispositif de soudage de tôles
DE10315976A1 (de) * 2003-04-08 2004-10-21 Volkswagen Ag Verfahren zum Vorbereiten des Fügebereichs eines beschichteten Werkstücks
FR2891484A1 (fr) * 2005-10-05 2007-04-06 Valeo Electronique Sys Liaison Procede de soudage d'une tole sandwich sur une face metallique d'un organe.
EP1772227A1 (fr) * 2005-10-05 2007-04-11 Valeo Systèmes Thermiques Procédé de soudage d'une tôle sandwich sur une face métallique d'un organe
EP1847330A2 (fr) 2006-04-19 2007-10-24 Gebhardt-Stahl GmbH Procédé de production d'un profil tubulaire à partir d'un matériau métallique en bande
EP1847330A3 (fr) * 2006-04-19 2007-11-21 Gebhardt-Stahl GmbH Procédé de production d'un profil tubulaire à partir d'un matériau métallique en bande
DE102007028137A1 (de) * 2007-06-19 2008-12-24 Volkswagen Ag Strahlschweißverfahren
WO2013050855A3 (fr) * 2011-10-06 2013-07-11 Lincoln Global Inc. Appareil et procédé pour le nettoyage au laser de produits enrobés avant le soudage
US8766140B2 (en) 2011-10-06 2014-07-01 Lincoln Global, Inc. Apparatus and method for laser cleaning of coated materials prior to welding
US9457432B2 (en) 2011-10-06 2016-10-04 Lincoln Global, Inc. Apparatus and method for laser cleaning of coated materials prior to welding
DE102015226474A1 (de) * 2015-12-22 2017-06-22 Thyssenkrupp Ag Halbzeug für die Herstellung von Hohlprofilen, Hohlprofile hieraus sowie Verfahren zu deren Herstellung
EP3393779A1 (fr) * 2015-12-22 2018-10-31 ThyssenKrupp Steel Europe AG Produit semi-fini pour produire des profilés creux, profilés creux ainsi obtenus et procédé pour les produire
CN105689896A (zh) * 2016-03-23 2016-06-22 昆山宝锦激光拼焊有限公司 一种热轧钢板的涂层去除与焊接一体化的激光加工方法
WO2020102839A1 (fr) * 2018-11-20 2020-05-28 Berndorf Innovations Und Technologie Gmbh Procédé de traitement d'une bande
AT521996A1 (de) * 2018-11-20 2020-07-15 Berndorf Innovations Und Tech Gmbh Verfahren zur Bearbeitung eines Bandes
CN113056347A (zh) * 2018-11-20 2021-06-29 贝恩多夫创新与技术有限公司 用于加工带的方法
AT521996B1 (de) * 2018-11-20 2021-08-15 Berndorf Innovations Und Tech Gmbh Verfahren zur Bearbeitung eines Bandes
CN115734835A (zh) * 2020-06-25 2023-03-03 罗伯特·博世有限公司 用于制造涂有塑料层的金属构件的方法和设备

Also Published As

Publication number Publication date
EP0757605A1 (fr) 1997-02-12
GB9408239D0 (en) 1994-06-15
AU2312895A (en) 1995-11-16

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