Press-formed member having corner portion, press-formed...

Details Press-formed member having corner portion, press-formed... Press-formed member having corner portion, press-formed...

2011-07-05

2011-07-05

Sullivan, Debra M (Department: 3725)

Metal deforming

By use of closed-die and coacting work-forcer

Forcing work into or within closed die; e.g., forging

C072S355200, C072S377000

Reexamination Certificate

active

07971466

ABSTRACT:
A press-formed member includes a first wall with a first thickness, a second wall with a second thickness, and a first corner portion. The first corner portion is disposed between the first and second walls, with the first corner portion having an increased thickness formed by pressure-forming such that the increased thickness of the first corner portion is larger than the first and second thicknesses of the first and second walls adjacent to the first corner portion. In a manufacturing method for the press-formed member, a preliminary body structure to be deformed is provided, and the thickness of the first corner portion of the preliminary body structure is increased by applying pressure to the preliminary body structure.

REFERENCES:
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patent: 5996391 (1999-12-01), Mizobuchi
patent: 7490503 (2009-02-01), Kanemitsu et al.
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The Japanese Office Action of corresponding Japanese Application No. 2006-215960, dated Oct. 22, 2010 and mailed Oct. 26, 2010.

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