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WO2006105658A1 - Soudage au laser d’acier galvanise - Google Patents

Soudage au laser d’acier galvanise Download PDF

Info

Publication number
WO2006105658A1
WO2006105658A1 PCT/CA2006/000520 CA2006000520W WO2006105658A1 WO 2006105658 A1 WO2006105658 A1 WO 2006105658A1 CA 2006000520 W CA2006000520 W CA 2006000520W WO 2006105658 A1 WO2006105658 A1 WO 2006105658A1
Authority
WO
WIPO (PCT)
Prior art keywords
flux material
powdered flux
coated
sheets
metal
Prior art date
Application number
PCT/CA2006/000520
Other languages
English (en)
Inventor
Cristian Golu
Original Assignee
Magna International Inc.
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 Magna International Inc. filed Critical Magna International Inc.
Publication of WO2006105658A1 publication Critical patent/WO2006105658A1/fr

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
    • B23K26/20—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
    • B23K26/21—Bonding by welding
    • B23K26/211—Bonding by welding with interposition of special material to facilitate connection of the 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
    • B23K2101/34—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 present invention relates to method of laser welding of galvanized steel.
  • this invention relates to a process for laser welding galvanized steel with a powdered flux material.
  • a common problem associated with welding coated or galvanized sheet metal includes the vaporization of the zinc galvanized coating resulting in zinc gas explosion leading to a poor weld having defects or pits weakening the joints and creating a visually unacceptable part.
  • a raised portion is provided on the inside surfaces of the coated sheets to form a gap for the gasses produced during laser welding to escape.
  • the present invention provides a method of laser welding utilizing a powdered flux material that is applied to the surface of the zinc coated sheets.
  • a method of laser welding coated metal sheets forming a high strength bond.
  • a powdered flux material is applied to at least one surface of one of the coated sheets of metal.
  • the coated sheets of metal are pressed together with the powdered flux material therebetween defining a gap.
  • a laser beam forms a laser weld wherein a portion of gases produced during the forming of the laser weld escape through the gap and a portion of the gases reacts with the powdered flux material.
  • the powered flux material can be applied by first spraying one surface of the coated metal sheets with an anti-spatter spray and then coating the spray with a powdered flux material.
  • the powdered flux material can be electrostatically sprayed onto the coated metal sheet.
  • FIG. 1 is a perspective view illustrating the joining of two coated metal sheets having powdered flux material therebetween according to the present invention
  • Fig. 2 is a top plan view of one of the coated metal sheets indicating a flow of zinc gas during a laser welding operation according to the present invention
  • Fig. 3 is a side elevational view of the two coated metal sheets of Fig. 1;
  • Fig. 4 is perspective view illustrating the application of the powdered flux material to the coated metal sheet according to the present invention.
  • coated metal sheets 12, 12' each comprise a metal core
  • a powdered flux material 20 is distributed on the surface of at least one of the sheet metal parts 12, 12' to be joined.
  • the powdered flux material is distributed on the surface of at least one of the sheet metal parts 12, 12' to be joined.
  • the powdered flux material 20 is a flux powder that is commercially available normally as a flux cored arc welding wire.
  • the powdered flux material 20 may be loosely blown on the surface after being coated with an anti-spatter spray or can be sprayed onto the surface of the coated sheet metal part 12, 12'. Either operation can be accomplished with the use of a spray gun 26, preferably a sand blaster type or an electrostatic type.
  • the coated sheet metal parts 12, 12' are placed in a face to face relation with the powdered flux material 20 therebetween.
  • the parts 12, 12' are pressed together in a press, as schematically indicated by the arrows, in a manner well known in the art.
  • the parts 12, 12' will be separated by a gap 14 approximately equal to the particle size of the powdered flux material 20.
  • a laser weld 24 is formed by energizing a laser 22 to locally melt the metal of the two parts 12, 12' to be joined. A portion of the zinc gas reacts with the powdered flux material 20. A portion of the zinc gas formed in the area by the laser 22 is allowed to flow between the two sheet metal parts 12, 12' thereby preventing the pressurization of zinc gas resulting in ejection through the laser keyhole area, as illustrated in Figure 2.

Landscapes

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

Abstract

On soude ensemble au laser des feuilles métalliques enduites, de façon à former une liaison d’une grande résistance. Un flux en poudre est appliqué sur au moins une surface d’une des feuilles métalliques enduites. Les feuilles métalliques enduites sont pressées les unes contre les autres, le flux en poudre formant un espace entre elles. Une soudure au laser est obtenue par un rayon laser, une partie des gaz produits pendant l’obtention de ladite soudure au laser s’échappant par l’espace, et une partie des gaz réagissant avec le flux en poudre. Le flux en poudre peut être appliqué en pulvérisant tout d’abord une pulvérisation anti-projection sur une surface des feuilles métalliques enduites, puis en enduisant cette pulvérisation d'un flux en poudre. Autrement, le flux de poudre peut être pulvérisé de manière électrostatique sur la feuille métallique enduite.
PCT/CA2006/000520 2005-04-08 2006-04-06 Soudage au laser d’acier galvanise WO2006105658A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66971605P 2005-04-08 2005-04-08
US60/669,716 2005-04-08

Publications (1)

Publication Number Publication Date
WO2006105658A1 true WO2006105658A1 (fr) 2006-10-12

Family

ID=37073063

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2006/000520 WO2006105658A1 (fr) 2005-04-08 2006-04-06 Soudage au laser d’acier galvanise

Country Status (1)

Country Link
WO (1) WO2006105658A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013007236A1 (fr) * 2011-07-12 2013-01-17 Mahle International Gmbh Procédé de fabrication d'un piston destiné à un moteur à combustion interne et piston destiné à un moteur à combustion interne
CN103521953A (zh) * 2013-10-25 2014-01-22 广州汉源新材料有限公司 一种预成型焊片助焊剂的涂覆工艺
KR20190129603A (ko) * 2018-05-11 2019-11-20 한국자재산업 주식회사 레이저 용접용 안티 스패터 조성물

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2000633A1 (fr) * 1988-10-15 1990-04-15 Michael Peter Davis Soudage des metaux avec revetement
US5759707A (en) * 1995-10-06 1998-06-02 Solvay Fluor Und Derivate Gmbh Flux-coated metal components
US6264096B1 (en) * 1995-01-24 2001-07-24 Solvay Fluor Und Derivate Gmbh Flux suitable for soldering light metals such as aluminum
CA2459412A1 (fr) * 2003-03-03 2004-09-03 Dana Corporation Conception de joint pour soudage laser d'acier galvanise

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2000633A1 (fr) * 1988-10-15 1990-04-15 Michael Peter Davis Soudage des metaux avec revetement
US6264096B1 (en) * 1995-01-24 2001-07-24 Solvay Fluor Und Derivate Gmbh Flux suitable for soldering light metals such as aluminum
US5759707A (en) * 1995-10-06 1998-06-02 Solvay Fluor Und Derivate Gmbh Flux-coated metal components
CA2459412A1 (fr) * 2003-03-03 2004-09-03 Dana Corporation Conception de joint pour soudage laser d'acier galvanise

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013007236A1 (fr) * 2011-07-12 2013-01-17 Mahle International Gmbh Procédé de fabrication d'un piston destiné à un moteur à combustion interne et piston destiné à un moteur à combustion interne
CN103521953A (zh) * 2013-10-25 2014-01-22 广州汉源新材料有限公司 一种预成型焊片助焊剂的涂覆工艺
KR20190129603A (ko) * 2018-05-11 2019-11-20 한국자재산업 주식회사 레이저 용접용 안티 스패터 조성물
KR102049341B1 (ko) 2018-05-11 2019-11-28 한국자재산업 주식회사 레이저 용접용 안티 스패터 조성물

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