Method of manufacturing closed section structure filled with...

Details Method of manufacturing closed section structure filled with... Method of manufacturing closed section structure filled with...

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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patent: 2004/0081571 (2004-04-01), Vatchiants
patent: 4-123781 (1992-11-01), None

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