Title:
METHOD AND JOINT FOR SPOT-WELDING OF FERROUS MATERIAL TO ALUMINUM MATERIAL
Document Type and Number:
Japanese Patent JP2004351507
Kind Code:
A
Abstract:
To provide a method and a joint for spot-welding of a ferrous material to an aluminum material in which production of brittle intermetallic compound formed on a welded part is suppressed and the consistently high welding strength is obtained by a simple means without considerably remodeling the conventional spot-welding equipment.
In this method, a coating film of 0.1-1 μm thick as a copper alloy film 3 or Cu alloy foil of 0.01-1 mm thick is disposed on a surface to be welded on the ferrous material 1 side, and fluoride flux 4 is coated on a surface to be welded on the aluminum material 2 side. Spot welding is performed under the conditions that the welding current is 8-18 kA, the pressure is 1.5-3 kN, and the welding time is ≤ 1s.
Inventors:
TAKEDA MIKAKO
KATO ATSUSHI
MORIKAWA YASUOMI
KATO ATSUSHI
MORIKAWA YASUOMI
Application Number:
JP2003154893A
Publication Date:
December 16, 2004
Filing Date:
May 30, 2003
Export Citation:
Assignee:
KOBE STEEL LTD
International Classes:
B23K11/20; B23K11/11; B23K11/24; B23K103/20; (IPC1-7): B23K11/20; B23K11/24
Attorney, Agent or Firm:
Yoshiyuki Kaji
Makoto Suhara
Makoto Suhara
Previous Patent: MANUFACTURING METHOD OF CYLINDER BLOCK
Next Patent: METHOD FOR MANUFACTURING INSERT POWDER MOLDED ARTICLE
Next Patent: METHOD FOR MANUFACTURING INSERT POWDER MOLDED ARTICLE