Metal working – Method of mechanical manufacture – Shaping by direct application of fluent pressure
Patent
1999-05-03
2000-05-02
Hughes, S. Thomas
Metal working
Method of mechanical manufacture
Shaping by direct application of fluent pressure
72 61, B23P 1700
Patent
active
06055715&
ABSTRACT:
A method for hydroforming a large surface area, double paneled, hollow auto body part, such as a hood, in which the inner and outer panels are concurrently shape formed and seamed structurally together in the same apparatus. A pair of upper and lower dies crush the edges of a double walled blank together between the dies so as to simultaneously clamp, seal, and form the seam. Then, a special face seal and fluid inlet assembly grips and holds the edges of an inlet hole near the center of the blank to allow the interior to be successfully pressurized and expanded.
REFERENCES:
patent: 2726973 (1955-12-01), Coral
patent: 3751956 (1973-08-01), Blanchi
patent: 4576030 (1986-03-01), Roper
patent: 5372026 (1994-12-01), Roper
patent: 5533372 (1996-07-01), Roper et al.
Bruggemann Charles J.
Lendway, IV Joseph Michael
Ni Chi-Mou
Todd, Jr. William Henry
General Motors Corporation
Hong John C.
Hughes S. Thomas
Leahy Charles E.
LandOfFree
Method for hydroforming a hollow sheet metal body part does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for hydroforming a hollow sheet metal body part, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for hydroforming a hollow sheet metal body part will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1584169