WO2004014596A1 - Procede et dispositif de liaison de pieces pourvues de couches de protection - Google Patents

Procede et dispositif de liaison de pieces pourvues de couches de protection Download PDF

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Publication number
WO2004014596A1
WO2004014596A1 PCT/EP2003/008540 EP0308540W WO2004014596A1 WO 2004014596 A1 WO2004014596 A1 WO 2004014596A1 EP 0308540 W EP0308540 W EP 0308540W WO 2004014596 A1 WO2004014596 A1 WO 2004014596A1
Authority
WO
WIPO (PCT)
Prior art keywords
clamping
components
component
elements
edge
Prior art date
Application number
PCT/EP2003/008540
Other languages
German (de)
English (en)
Inventor
Roland Oesterlein
Wolfgang Waldi
Original Assignee
Abb Research 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 Abb Research Ltd. filed Critical Abb Research Ltd.
Publication of WO2004014596A1 publication Critical patent/WO2004014596A1/fr

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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
    • B23K26/20—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
    • B23K26/32—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
    • B23K2101/18—Sheet panels
    • 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
    • B23K2103/02—Iron or ferrous alloys
    • B23K2103/04—Steel or steel 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
    • B23K2103/08—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

  • the invention relates to a method and a device for connecting components according to the preamble of claims 1 and 3.
  • Such a method and such a device are used where fusible, coated components made of metal are to be bonded to form a structural unit.
  • a very large area of application is the production of vehicle bodies.
  • the permanent connection in particular the welding of such components, is preferably carried out with the aid of high-energy radiation, which is generated, for example, by means of a laser source or an electron beam gun.
  • Diode lasers, solid-state lasers and gas lasers are primarily suitable as laser sources.
  • Components that are used to manufacture car bodies are mostly made of steel. They are usually provided with protective layers made of zinc, which has a lower evaporation temperature than the steel itself.
  • the invention has for its object to provide a method with which components of the type mentioned above can be connected via a perfect weld, bypassing the known effort. Furthermore, the invention has for its object to provide a device with which such a method can be carried out.
  • FIG. 2 shows a section of the device according to FIG. 1,
  • the device 1 shown in Fig. 1 is designed as a welding gun, and comprises a fixed arm 2 and a movable arm 3, three clamping elements 4, 5, 6, two bending elements 8 and 9 and a movable or pivotable optical device 10.
  • the movable Arm 3 is fastened to the welding gun 1 via a joint 11.
  • the welding gun 1 is equipped with a drive device (not shown here).
  • the two clamping elements 4 and 5 are installed at the free end of the arm 2, the two clamping elements 4 and 5 are installed.
  • the two clamping elements 4 and 5 are L-shaped in the embodiment shown here.
  • each clamping element 4, 5 is tapered to such an extent that a clamping surface 4F, 5F of a defined width is formed, which has a slight convex curvature.
  • the clamping elements 4 and 5 are attached at a distance to the outside at the free end of the arm 2 such that their longitudinal axes are positioned in a plane perpendicular to the longitudinal axis of the arm 2. An inclination of the clamping element 4, 5 is possible.
  • the sections of the clamping elements 4 and 5, which form the clamping surfaces 4F and 5F, are directed towards one another.
  • the distance between the two clamping elements 4 and 5 is chosen so large that a beam 12, as shown in FIG. 2, of a laser source (not shown here), which is connected to the optical device 10, between the two clamping surfaces 4F and 5F can be passed through.
  • an electron beam gun can be used as the beam source.
  • this clamping element 6 has a J-shaped recess 6U which is opposite to the two clamping surfaces 4F and 5F of the ⁇ clamping elements 4, 5.
  • a clamping surface 4F and 5F is seated on a surface 6F of one of the two boundaries of the U-shaped recess 6U.
  • the surfaces 6F form the clamping surfaces of the clamping element 6.
  • the two bending elements 8 and 9 are also installed at the free end of the movable arm 3 in addition to the clamping element 6.
  • a bending element 8, 9 is in each case in front of a limitation of the U-shaped ones Recess 6U, both bending elements 8 and 9 are seen in the direction of the longitudinal axis of the welding gun 1, positioned behind the clamping element 6, the bending element 8, 9 has a bearing surface 8A, 9A. Both bearing surfaces 8A, 9A lie in the same plane as the clamping surfaces 6F. Each bearing surface 8A, 9A is delimited on one side by an edge 8K, 9K which is oriented perpendicular to the longitudinal axis of the welding gun 1 and is beveled outwards, as shown in FIGS. 2 and 3.
  • the two components 30 and 40 shown in FIG. 3 are made of steel and are each provided with a protective layer 30S, 40S made of zinc.
  • the welding gun 1 is first opened so far that the two components 30 and 40 can be arranged between the clamping surfaces 4F 5F and 6F.
  • the two components 30 and 40 are placed on top of one another in such a way that they overlap at least in the region in which a weld seam 13 is to be formed.
  • the lower component 40 rests on the clamping surfaces 6F and with its edge 40R on the contact surfaces 8A and 9A of the bending elements 8 and 9.
  • the component 30 arranged on the component 40 covers the component 40 to such an extent that the edge 30R of the component 30 rests on the edges 8K and 9K of the bending elements 8 and 9.
  • the clamping elements 4 and 5 are pressed against the upper side of the component 30, while the clamping surfaces 6F of the clamping element 6 are pressed against the lower side of the component 40. Since the height of the edges 8K and 9K is slightly greater than the thickness of the component 40, the edge 30R of the component 30 is bent upward and the gap 14 shown in FIG. 3 is formed.
  • the steel 12 is focused on the component 30 by the optical device 10 such that the focal point of the steel 12 lies on, inside or below the surface of the component 30.
  • the material of the components 30 and 40 is melted where the beam 12 strikes during welding.
  • the zinc vapor that forms is discharged through the gap 14 according to FIG. 3.
  • the invention is not limited to the exemplary embodiment described here. Rather, it encompasses all variations of the method and the device that can be assigned to the essence of the invention. This applies in particular to the welding of more than two stacked components as described above.

Landscapes

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

Abstract

Procédé et dispositif de liaison par soudage de pièces en acier revêtues de couches de protection dont la température de vaporisation est inférieure à celle de l'acier. Le soudage de pièces de ce type entraîne la formation de vapeurs métalliques ou de gaz. Ces vapeurs métalliques et ces gaz sont évacués par une fente (14) entre les pièces (30, 40). Jusqu'alors, la formation de la fente (14) était très difficile et très chère et la présente invention permet de supprimer ces inconvénients. Dans la zone de la soudure, les pièces (30, 40) sont placées chevauchantes de manière telle que le bord (30R) de la pièce se trouvant au-dessus (30) dépasse par rapport au bord (40R) de la pièce se trouvant en dessous (40). Le bord (30R) de la pièce se trouvant au-dessus (30) est soulevé en vue de la formation d'une fente (9) lors du soudage. A cet effet, on utilise un dispositif sous forme de pince de soudage constituée d'un bras fixe et d'un bras mobile (3). La pince de soudage est pourvue de plusieurs éléments de serrage (4, 6) destinés à la fixation des pièces (30, 40) et d'au moins deux éléments de cintrage (8) destinés à soulever la pièce (30) se trouvant au-dessus. Les éléments de serrage (6), les éléments de cintrage (8) ainsi qu'un dispositif optique basculant sont installés sur les extrémités libres des deux bras.
PCT/EP2003/008540 2002-08-05 2003-08-01 Procede et dispositif de liaison de pieces pourvues de couches de protection WO2004014596A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10235856.7 2002-08-05
DE10235856A DE10235856A1 (de) 2002-08-05 2002-08-05 Verfahren und Vorrichtung zum Verbinden von Bauteilen

Publications (1)

Publication Number Publication Date
WO2004014596A1 true WO2004014596A1 (fr) 2004-02-19

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Application Number Title Priority Date Filing Date
PCT/EP2003/008540 WO2004014596A1 (fr) 2002-08-05 2003-08-01 Procede et dispositif de liaison de pieces pourvues de couches de protection

Country Status (2)

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DE (1) DE10235856A1 (fr)
WO (1) WO2004014596A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57181789A (en) * 1981-04-30 1982-11-09 Toshiba Corp Spot welder utilizing laser
DE4219549A1 (de) * 1992-06-15 1993-12-16 Fraunhofer Ges Forschung Verfahren zum Schweißen von Werkstücken
US5616261A (en) * 1995-06-07 1997-04-01 Chrysler Corporation Laser welding system
US5897796A (en) * 1997-06-16 1999-04-27 Chrysler Corporation Method and apparatus for in-situ laser welding of hemmed joints
US5968672A (en) * 1995-11-30 1999-10-19 Honda Giken Kogyo Kabushiki Kaisha Weldment produced by beam welding
JP2002192379A (ja) * 2000-12-25 2002-07-10 Honda Motor Co Ltd レーザ溶接方法及びその装置
FR2822400A1 (fr) * 2001-03-26 2002-09-27 Commissariat Energie Atomique Dispositif et procede de soudage de toles
EP1249304A1 (fr) * 2001-04-02 2002-10-16 ThyssenKrupp Drauz Ingenieurbetrieb GmbH Dispositif presseur déplaçable pour presser au moins deux tôles superposées
WO2002081140A1 (fr) * 2001-04-05 2002-10-17 Nothelfer Gmbh Procede et dispositif pour assembler des toles recouvertes, par soudage laser

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60210386A (ja) * 1984-04-02 1985-10-22 Mitsubishi Electric Corp レ−ザ溶接方法及び装置
IT1182277B (it) * 1984-09-20 1987-10-05 Prima Progetti Spa Metodo per la saldatura laser di lamiere metalliche protette con materiali a bassa temperatura di vaporizzazione
DE3812448C1 (fr) * 1988-04-14 1989-06-15 Bayerische Motoren Werke Ag, 8000 Muenchen, De
DE3909471C2 (de) * 1988-06-21 1993-10-07 Fraunhofer Ges Forschung Überlappstoß zum Schweißen von beschichteten Werkstücken mittels Laserstrahlung
DE3933408A1 (de) * 1989-10-06 1990-08-30 Daimler Benz Ag Ueberlapp- oder steg-schweissnaht fuer verzinkte bleche
DE4407190A1 (de) * 1994-03-04 1995-09-07 Thyssen Laser Technik Gmbh Verfahren zum Vorbereiten der Fügebereiche beschichteter Werkstücke zum Schweißen mit Laserstrahlung und Überlappstoß zum Schweißen beschichteter Werkstücke

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57181789A (en) * 1981-04-30 1982-11-09 Toshiba Corp Spot welder utilizing laser
DE4219549A1 (de) * 1992-06-15 1993-12-16 Fraunhofer Ges Forschung Verfahren zum Schweißen von Werkstücken
US5616261A (en) * 1995-06-07 1997-04-01 Chrysler Corporation Laser welding system
US5968672A (en) * 1995-11-30 1999-10-19 Honda Giken Kogyo Kabushiki Kaisha Weldment produced by beam welding
US5897796A (en) * 1997-06-16 1999-04-27 Chrysler Corporation Method and apparatus for in-situ laser welding of hemmed joints
JP2002192379A (ja) * 2000-12-25 2002-07-10 Honda Motor Co Ltd レーザ溶接方法及びその装置
FR2822400A1 (fr) * 2001-03-26 2002-09-27 Commissariat Energie Atomique Dispositif et procede de soudage de toles
EP1249304A1 (fr) * 2001-04-02 2002-10-16 ThyssenKrupp Drauz Ingenieurbetrieb GmbH Dispositif presseur déplaçable pour presser au moins deux tôles superposées
WO2002081140A1 (fr) * 2001-04-05 2002-10-17 Nothelfer Gmbh Procede et dispositif pour assembler des toles recouvertes, par soudage laser

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 007, no. 025 (M - 190) 2 February 1983 (1983-02-02) *
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 11 6 November 2002 (2002-11-06) *

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