US 4808248
PROCESS FOR THERMAL AGING OF ALUMINUM ALLOY PLATE
Assignee
NORTHROP CORPORATION
Filed
Oct 10, 1986
Granted
Feb 28, 1989
Location
Hawthorne CA (Northrop)
Abstract
A method is disclosed for preparing an improved aluminum alloy plate product wherein the plate produced from an Al-Li-Cu-Mg alloy in the T351 condition is subjected to a thermal aging treatment wherein the plate is exposed to a temperature of about 170° C.±2° C. for about 32 hours ±0.5 hours.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
May 11, 1987
Rescinded
Oct 12, 1988
Duration
1 year, 5 months
Inventor
- 1MALCOLM W. OZELTON
Sensitive facility: Hawthorne CA (Northrop)
Record Details
- Patent number
- US 4808248
- Application
- 00691763
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
Browse by Assignee
NORTHROP CORPORATIONBack to patent indexSource: USPTO 35 USC §181 secrecy order records