Title:
METHOD FOR JOINING ALUMINUM ALLOY
Document Type and Number:
Japanese Patent JP3229110
Kind Code:
B2
Abstract:
PURPOSE: To perform the welding by a laser beam machine of low mean output density in an optimum weldable area where the pulse peak output density and the mean output density are parameters by the narrow gap pulse CO2 laser beam welding.
CONSTITUTION: The narrow gap laser beam welding is performed by using the pulse CO2 laser beam in the area to satisfy the relationship of 70 × exp(-20 ×Pa) ≤ Pp ≤ 18000 × exp(-16 × Pa) where Pp (MW/cm2) is the pulse peak output density of the laser beam, and Pa(MW/cm2) is the mean output density at a narrow gap closely attached part 3.
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Inventors:
Tatsuhiko Sakai
Naoya Hamada
Atsushi Sugihashi
Katsuhiro Minamida
Naoya Hamada
Atsushi Sugihashi
Katsuhiro Minamida
Application Number:
JP4345294A
Publication Date:
November 12, 2001
Filing Date:
March 15, 1994
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
B23K26/00; B23K26/21; B32B15/01; B23K103/10; (IPC1-7): B23K26/00; B32B15/01
Domestic Patent References:
| JP5260256A | ||||
| JP5318153A | ||||
| JP2500628A |
Attorney, Agent or Firm:
Yu Shiina (1 person outside)