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1. WO2017203321 - METHOD FOR PREPARING A PRECOATED SHEET AND ASSOCIATED INSTALLATION

Publication Number WO/2017/203321
Publication Date 30.11.2017
International Application No. PCT/IB2016/053017
International Filing Date 23.05.2016
IPC
B23K 26/00 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
B23K 26/362 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
36Removing material
362Laser etching
B23K 26/40 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
36Removing material
40taking account of the properties of the material involved
B23K 26/60 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
60Preliminary treatment
B23K 26/70 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
70Auxiliary operations or equipment
B23K 31/10 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
31Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups B23K1/-B23K28/193
10relating to cutting or desurfacing
CPC
B23K 2103/166
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
2103Materials to be soldered, welded or cut
16Composite materials ; , e.g. fibre reinforced
166Multilayered materials
B23K 26/354
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
352for surface treatment
354by melting
B23K 26/361
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
36Removing material
361for deburring or mechanical trimming
B23K 26/40
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
36Removing material
40taking account of the properties of the material involved
B23K 26/60
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
60Preliminary treatment
B23K 26/702
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
70Auxiliary operations or equipment
702Auxiliary equipment
Applicants
  • ARCELORMITTAL [LU]/[LU]
Inventors
  • VIERSTRAETE, René
Agents
  • DOMENEGO, Bertrand
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD FOR PREPARING A PRECOATED SHEET AND ASSOCIATED INSTALLATION
(FR) PROCÉDÉ DE PRÉPARATION D'UNE FEUILLE PRÉ-REVÊTUE ET INSTALLATION ASSOCIÉE
Abstract
(EN)
Method for preparing a precoated sheet (1 ) comprising: - providing a precoated sheet (1 ) comprising a metallic substrate provided with a precoating on at least one of its faces; - removing through laser ablation at least a portion of the precoating on said at least one face of the precoated sheet (1 ) in a removal zone (6), said ablation step being carried out in an installation (20). The installation (20) comprises at least one protective element (26) comprising a protective surface (28). During the ablation step, the protective surface (28) contacts the precoated sheet (1 ) in a contact area in register with the laser beam (22) as the laser beam (22) removes the portion of the precoating. A plane tangent to said protective surface (28) at the contact area forms a dihedral angle with the plane of the face (12) of the precoated sheet (1 ), this angle being strictly smaller than 90°.
(FR)
L'invention concerne un procédé de préparation d'une feuille pré-revêtue (1) comprenant : - la fourniture d'une feuille pré-revêtue comprenant un substrat métallique doté d'un pré-revêtement sur au moins l'une de ses faces; - l'élimination par ablation laser d'au moins une partie du pré-revêtement sur ladite au moins une face de la feuille pré-revêtue (1) dans une zone d'élimination (6), ladite étape d'ablation étant mise en œuvre dans une installation (20). L'installation (20) comprend au moins un élément de protection (26) comprenant une surface de protection (28). Pendant l'étape d'ablation, la surface de protection (28) entre en contact avec la feuille pré-revêtue (1) dans une zone de contact en alignement avec le faisceau laser (22) lorsque le faisceau laser (22) élimine la partie du pré-revêtement. Un plan tangent à ladite surface de protection (28) au niveau de la zone de contact forme un angle dièdre avec le plan de la face (12) de la feuille pré-revêtue (1), cet angle étant strictement inférieur à 90°.
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