Metal treatment – Process of modifying or maintaining internal physical... – Heating or cooling of solid metal
Reexamination Certificate
2007-05-15
2007-05-15
King, Roy (Department: 1742)
Metal treatment
Process of modifying or maintaining internal physical...
Heating or cooling of solid metal
C148S698000, C072S364000
Reexamination Certificate
active
10381476
ABSTRACT:
A method is provided for forming complex structures from aluminum alloys, particularly from naturally hard AlMg alloys, naturally hard AlMgSc alloys and/or age-hardenable AlMgLi alloys. The method, in a simple manner by means of as few process steps as possible, forms complex structures from the alloys such that they almost assume their final shape without any significant spring-back. Simultaneously, the loss of material is to be kept as low as possible. This is achieved by means of the following steps: elastic forming of a component to be formed into a defined contour under the effect of external force; and heating-up of the elastically formed component to a temperature higher than the temperature required for a creep formation and relaxation of stresses of the alloy, so that the component is formed while retaining the contour.
REFERENCES:
patent: 4188811 (1980-02-01), Brimm
patent: 5168169 (1992-12-01), Brewer, Jr. et al.
patent: 5620652 (1997-04-01), Tack et al.
patent: 6972110 (2005-12-01), Chakrabarti et al.
patent: 195 04 649 (1996-08-01), None
patent: 0 517 982 (1992-12-01), None
patent: 0 527 570 (1993-02-01), None
patent: 2 696 967 (1994-04-01), None
Friedrich Ostermann, “Anwendungstechnologie Aluminum”, 1998, pp. 59-68, Springer Verlag, ISBN 3-540-62706-5.
D.M. Hambrick “Age Forming Technology Expanded in an Autoclave”,SAE Technical Paper Series, General Aviation Aircraft Meeting and Exhibition, Wichita, Kansas, Apr. 16-19, 1985, No. 850885.
Holman, M.C. “Autoclave Age Forming Large Aluminum Aircraft Panels”, Journal of Mechanical Working Technology, Amsterdam, NL, Bd. 20, 1989, pp. 477-488 (XP000749608).
Jambu Stephane
Juhl Knut
Lenczowski Blanka
Airbus Deutschland GmbH
Crowell & Moring LLP
King Roy
Morillo Janelle
LandOfFree
Method for shaping structures comprised of aluminum alloys 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 shaping structures comprised of aluminum alloys, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for shaping structures comprised of aluminum alloys will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3736737