Metal fusion bonding – Process – Using dynamic frictional energy
Reexamination Certificate
2006-08-29
2006-08-29
Johnson, Jonathan (Department: 1725)
Metal fusion bonding
Process
Using dynamic frictional energy
C228S002100
Reexamination Certificate
active
07097091
ABSTRACT:
Disclosed is a friction stir welding method for welding two members to be welded which differ in physical properties and/or mechanical properties by abutting the two members to each other, inserting a pin portion of a rotary tool having the pin portion and a shoulder portion to the abutment surfaces of the two members, and moving the rotary tool along the abutment surfaces. The pin portion is inserted to only one of the members, the pin portion is not inserted to the other of the members but only the shoulder portion is set in contact with the other of the members, and, while this condition is maintained, the rotary tool is moved. With this method, only the member on the side where the pin is inserted can be made to undergo plastic flow attendant on a friction stir action. The metal in plastic flow is pressed against the opposite member at an elevated temperature and high pressure, whereby diffusion of atoms is caused in the vicinity of the abutment surfaces, and the members are welded.
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Translation of JP-10137952.
Translation of JP-10328855.
Patent Abstracts of Japan, vol. 1998, No. 10, Aug. 31, 1998 and JP 10 137952 A, May 26, 1998.
Aota Kinya
Okamura Hisanori
Sakamoto Masahiko
Satou Kouji
Dickstein , Shapiro, Morin & Oshinsky, LLP
Hitachi , Ltd.
Johnson Jonathan
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