Metal fusion bonding – Process – Using dynamic frictional energy
Reexamination Certificate
2007-08-23
2011-10-18
King, Roy (Department: 1733)
Metal fusion bonding
Process
Using dynamic frictional energy
C228S002100
Reexamination Certificate
active
08038047
ABSTRACT:
Metallic materials having a melting point of at least 2000° C. are caused to abut against each other in a welding part. The rear face side of the welding part is covered by a backing member having a thermal conductivity of 30 W/mK or lower, and then a columnar probe of a rotary tool comprising an Ir alloy is inserted into the front face side of the welding part to weld the metallic materials together. On the front face side of the welding part, inactive gas is supplied into a shield cover. The rotary tool is moved along a longitudinal direction of the welding part while rotating the rotary tool, whereby the metallic materials are welded together. By using the rotary tool comprising an Ir alloy, the refractory metals can be welded to each other by means of friction stir welding.
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Fujii Hidetoshi
Maruko Tomohiro
Aboagye Michael
Furuya Metal Co., Ltd.
King Roy
Osaka University
Osha & Liang LLP
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