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1. WO1997026110 - METHOD AND APPARATUS FOR BUTT WELDING TOGETHER SHEET BLANKS

Publication Number WO/1997/026110
Publication Date 24.07.1997
International Application No. PCT/CA1996/000737
International Filing Date 06.11.1996
Chapter 2 Demand Filed 27.06.1997
IPC
B23K 26/26 2014.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
20Bonding
21by welding
24Seam welding
26of rectilinear seams
B23K 37/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
37Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the other main groups of this subclass
04for holding or positioning work
CPC
B23K 2101/18
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
2101Articles made by soldering, welding or cutting
18Sheet panels
B23K 26/26
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
20Bonding
21by welding
24Seam welding
26of rectilinear seams
B23K 37/0408
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
37Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
04for holding or positioning work
0408for planar work
H01F 2007/208
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
7Magnets
06Electromagnets; Actuators including electromagnets
20without armatures
206Electromagnets for lifting, handling or transporting of magnetic pieces or material
208combined with permanent magnets
Applicants
  • AUTOMATED WELDING SYSTEMS INC. [CA]/[CA] (AllExceptUS)
  • BISHOP, Bob [CA]/[CA] (UsOnly)
  • LECEK, Ludvik [CA]/[CA] (UsOnly)
Inventors
  • BISHOP, Bob
  • LECEK, Ludvik
Agents
  • RICHES, McKENZIE & HERBERT
Priority Data
2,167,11112.01.1996CA
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR BUTT WELDING TOGETHER SHEET BLANKS
(FR) PROCEDE ET APPAREIL DE SOUDAGE EN BOUT DE TOLES
Abstract
(EN)
An apparatus is disclosed for positioning, clamping and welding together proximal edge portions of two sheet blanks. The apparatus incorporates a high energy laser and sheet clamping mechanism used to clamp each sheet blank in place between an associated electromagnet and ferromagnetic clamping shoes. The shoes are positioned above a corresponding electromagnet and are vertically movable theretowards on the activation of the electromagnet. In use, the sheets are held in place with the respective sheet blanks sandwiched between the associated electromagnets and shoes with the proximal edge portions of the sheets abutting. The high energy laser is movably provided in the apparatus to move an emitted laser beam along a predetermined path over the abutting proximal edge portions to perform welding operations.
(FR)
L'invention porte sur un appareil servant à positionner, bloquer, et souder ensemble, les bords proximaux de deux tôles. L'appareil comprend un laser de forte puissance et un mécanisme de blocage de chacune des tôles en position de soudure les prenant entre un électroaimant et des enclumes ferromagnétiques. Les enclumes sont placées au-dessus des électroaimants correspondants vers lesquels elles se déplacent verticalement lors de l'activation des électroaimants. Pour la soudure, les tôles sont maintenues en place en étant respectivement prises en sandwich entre les électroaimants et les enclumes correspondantes, alors que leurs extrémités proximales se touchent. Le laser de forte puissance se meut à l'intérieur de l'appareil de manière à faire circuler son faisceau le long d'une trajectoire prédéterminée au-dessus des bords proximaux des deux tôles se touchant et opérer la soudure.
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