Boots – shoes – and leggings
Patent
1995-08-25
1998-03-17
Ruggiero, Joseph
Boots, shoes, and leggings
36447407, 364512, 364578, G06F 1900
Patent
active
057294623
ABSTRACT:
A method is disclosed for constructing a complex tool surface for use in an age forming process. In one embodiment, the method comprises eight steps. Those steps are (1) modeling a flat panel as a set of finite elements, (2) modeling a rigid tool having a complex tool surface, (3) assigning material characteristics expressed as creep strain to each of the finite elements of the flat panel, (4) modeling the flat panel constrained to the rigid tool in an age forming process to produce a simulated age formed panel, (5) comparing the simulated age formed panel to an actual component and determining the differences, (6) modifying the rigid tool model to eliminate the differences determined in the comparison step, (7) repeating steps 4 and 5 with the modified rigid model until the differences fall within acceptable tolerances; and (8) constructing a tool for use in an age forming process in accordance with the modified rigid model.
REFERENCES:
patent: 2455702 (1948-09-01), Rechton et al.
patent: 3060564 (1962-05-01), Corral
patent: 3354691 (1967-11-01), Hall, Jr.
patent: 3550422 (1970-12-01), Potter
patent: 4122697 (1978-10-01), Hanyo et al.
patent: 4125929 (1978-11-01), Rode
patent: 4408471 (1983-10-01), Gossard et al.
patent: 4424727 (1984-01-01), Mader
patent: 4511976 (1985-04-01), Graf
patent: 4797831 (1989-01-01), Dressing et al.
patent: 4802357 (1989-02-01), Jones
patent: 4858146 (1989-08-01), Shebini
patent: 4864509 (1989-09-01), Somerville et al.
patent: 4947666 (1990-08-01), Hametner et al.
patent: 4962654 (1990-10-01), Zbornik
patent: 5031431 (1991-07-01), Naito
patent: 5148693 (1992-09-01), Sartorio et al.
patent: 5168169 (1992-12-01), Brewer, Jr. et al.
patent: 5341303 (1994-08-01), Foroudastan et al.
patent: 5528504 (1996-06-01), Brewer
"Age Creep Forming Aluminum Aircraft Skins", Hambrick, Denise M., Avco Aerostructures Textron, Nashville, TN 37202, 1st International SAMPE Metals Conference, Aug. 18-20, 1987, pp. 135-143.
Holman Mitchell C.
Newkirk Todd L.
Gulfstream Aerospace Corporation
Northrop Grumman Corporation
Ruggiero Joseph
LandOfFree
Method and apparatus for constructing a complex tool surface for 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 and apparatus for constructing a complex tool surface for, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for constructing a complex tool surface for will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-963925