Process of manufacturing structural body for automotive vehicle

Details Process of manufacturing structural body for automotive vehicle Process of manufacturing structural body for automotive vehicle

1997-02-19

1999-02-02

Kuhns, Allan R.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 464, B29C 4406, B29C 4418

Patent

active

058660526

ABSTRACT:
A process of manufacturing a structural body for an automotive vehicle, the structural body comprising a hollow member having an inner space, and a foamed body filling the inner space, the process including the steps of disposing, in the inner space of the hollow member, a hard foamable material having expansion absorbing means, the expansion absorbing means being formed in a longitudinal direction of the hollow member; and foaming the hard foamable material into a highly rigid foamed body for filling the inner space of the hollow member, such that the expansion absorbing means absorbs volume expansion of the highly rigid foamed body so as to prevent application of an excessive foaming pressure generated by the highly rigid foamed body, to inner surfaces of the hollow member.

REFERENCES:
patent: 4269890 (1981-05-01), Breitling et al.
patent: 4995545 (1991-02-01), Wycech
patent: 5160465 (1992-11-01), Soderberg

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