Metal fusion bonding – Process – Using dynamic frictional energy
Reexamination Certificate
2008-04-22
2008-04-22
Stoner, Kiley (Department: 1793)
Metal fusion bonding
Process
Using dynamic frictional energy
C228S002100, C228S254000
Reexamination Certificate
active
11000063
ABSTRACT:
In a spot joining method and apparatus, pressing force of a rotating tool is maintained at a first pressing force, the frictional heat due to the rotation of the rotating tool is generated on a surface of an aluminum plate, and the aluminum plate is softened by this frictional heat, so as to ensure the centering of a pin portion of the rotating tool. Thus, even if the pin of the rotating tool is short, a stable joining position can be obtained, so that the aluminum material can be prevented from accumulating on the rotating tool, the appearance of joining surfaces can be prevented from deteriorating, and the sufficient joining strength can be obtained.
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Office Action in corresponding Japanese Patent Application No. 2003-406709 dated Sep. 25, 2007, pp. 1-2.
Gendou Toshiyuki
Nishiguchi Katsuya
Takase Kenji
Mazda Motor Corporation
Nixon & Peabody LLP
Stoner Kiley
Studebaker Donald R.
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