Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Making porous product
Reexamination Certificate
2006-11-28
2006-11-28
Mai, Ngoclan T. (Department: 1742)
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Making porous product
C419S008000
Reexamination Certificate
active
07141206
ABSTRACT:
An aluminum plate (13) is first plastic-deformed (FIG.3D) in such a way as to envelop a foaming-agent compact (14), which is not foamed yet. Then, terminals of the aluminum plate (13) are integrally seam-welded (FIG.3E) to thereby obtain a closed section structure (23). Subsequently, the foaming-agent compact (14) contained in the closed section structure (23) is foamed by being heated to foaming temperature thereof. Consequently, a pipe-like frame filled with a foam (27) is obtained.
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Hayakawa Kimihito
Ishikawa Ryoichi
Shibata Katsuhiro
Arent & Fox PLLC
Honda Motor Co. Ltd.
Mai Ngoclan T.
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