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1. WO2022009721 - METHOD FOR MANUFACTURING DISSIMILAR MATERIAL JOINT STRUCTURE

Publication Number WO/2022/009721
Publication Date 13.01.2022
International Application No. PCT/JP2021/024387
International Filing Date 28.06.2021
IPC
B23K 26/323 2014.1
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
32taking account of the properties of the material involved
323involving parts made of dissimilar metallic material
B23K 26/073 2006.1
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
02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
06Shaping the laser beam, e.g. by masks or multi-focusing
073Shaping the laser spot
B23K 26/21 2014.1
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
B23K 26/322 2014.1
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
32taking account of the properties of the material involved
322involving coated metal parts
C23C 24/04 2006.1
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
24Coating starting from inorganic powder
02by application of pressure only
04Impact or kinetic deposition of particles
Applicants
  • 株式会社神戸製鋼所 KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.) [JP]/[JP]
Inventors
  • 前田 恭兵 MAEDA Kyohei
  • 鈴木 励一 SUZUKI Reiichi
Agents
  • 特許業務法人栄光特許事務所 EIKOH PATENT FIRM, P.C.
Priority Data
2020-11799708.07.2020JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) METHOD FOR MANUFACTURING DISSIMILAR MATERIAL JOINT STRUCTURE
(FR) PROCÉDÉ DE FABRICATION D'UNE STRUCTURE D'ASSEMBLAGE DE MATÉRIAUX DISSEMBLABLES
(JA) 異材接合構造体の製造方法
Abstract
(EN) Provided is a method for manufacturing a dissimilar material joint structure capable of suppressing the occurrence of cracks in an HAZ in dissimilar material joining of aluminum or an aluminum alloy material and a steel material. A method for manufacturing a dissimilar material joint structure by joining a steel material (13) and an aluminum alloy material (11) having a low-temperature sprayed coating film (12) made of a metal powder that can be joined to the steel material (13) on at least a part of the surface, the method comprising: a step for superimposing the aluminum alloy material (11) and the steel material (13) so that the low-temperature sprayed coating film (12) and the steel material (13) face each other, and a step for irradiating with a laser beam (14) from the steel material (13) side, wherein a region to be irradiated with the laser beam (14) is composed of a first region W1 in which at least the steel material (13) and the low-temperature sprayed coating film (12) are melted, and a second region W2 in which the steel material (13) and the low-temperature sprayed coating film (12) are not melted in a peripheral portion of the first region W1.
(FR) L'invention concerne un procédé de fabrication d'une structure d'assemblage de matériaux dissemblables pouvant supprimer l'apparition de fissures dans une zone thermiquement affectée dans l'assemblage de matériaux dissemblables d'aluminium ou d'un matériau d'alliage d'aluminium et d'un matériau d'acier. L'invention concerne un procédé de fabrication d'une structure d'assemblage de matériaux dissemblables par assemblage d'un matériau d'acier (13) et d'un matériau d'alliage d'aluminium (11) ayant un film de revêtement pulvérisé à basse température (12) constitué d'une poudre métallique qui peut être assemblée au matériau d'acier (13) sur au moins une partie de la surface, le procédé comprenant : une étape de superposition du matériau d'alliage d'aluminium (11) et du matériau d'acier (13) de sorte que le film de revêtement pulvérisé à basse température (12) et le matériau d'acier (13) se fassent face et une étape de rayonnement d'un faisceau laser (14) à partir du côté matériau d'acier (13), une région devant être soumise au rayonnement du faisceau laser (14) étant composée d'une première région W1 dans laquelle sont fondus au moins le matériau d'acier (13) et le film de revêtement pulvérisé à basse température (12) et d'une seconde région W2 dans laquelle le matériau d'acier (13) et le film de revêtement pulvérisé à basse température (12) ne sont pas fondus dans une partie périphérique de la première région W1.
(JA) アルミニウム又はアルミニウム合金材と鋼材との異材接合において、HAZにおける割れの発生を抑制することができる異材接合構造体の製造方法を提供する。鋼材(13)と、表面の少なくとも一部に、鋼材(13)と接合可能な金属粉末からなる低温溶射皮膜(12)を有するアルミニウム合金材(11)と、を接合する異材接合構造体の製造方法は、低温溶射皮膜(12)と鋼材(13)とが対向するように、アルミニウム合金材(11)と鋼材(13)とを重ね合わせる工程と、鋼材(13)側からレーザビーム(14)を照射する工程と、を有し、レーザビーム(14)を照射する領域は、少なくとも鋼材(13)及び低温溶射皮膜(12)を溶融させる第1領域W1と、第1領域W1の周辺部において鋼材(13)及び低温溶射皮膜(12)を溶融させない第2領域W2と、からなる。
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