High strength aluminum alloy

Metal treatment – Process of modifying or maintaining internal physical... – Heating or cooling of solid metal

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C148S699000

Reexamination Certificate

active

06869490

ABSTRACT:
A process for thermally treating an article made from an alloy comprising at least aluminum and copper. The process comprises solid solution heat treating the article, quenching the article, heating the article to a first temperature of from about 275 to about 340° F. and artificially aging. The article is artificially aged at the first temperature for a duration of at least 30 minutes. The article is artificially aged at a second temperature of from about 325 to about 380° F. for a duration of from about 4 hours to about 36 hours. The second temperature is greater than the first temperature by at least 10° F.

REFERENCES:
patent: 2248185 (1941-07-01), Nock, Jr.
patent: 3198676 (1965-08-01), Sprowls
patent: 3231435 (1966-01-01), Rotsell, Jr.
patent: 3305410 (1967-02-01), Sublett
patent: 3881966 (1975-05-01), Staley et al.
patent: 3947297 (1976-03-01), Reimann et al.
patent: 4030947 (1977-06-01), Kemper
patent: 4214925 (1980-07-01), Arita et al.
patent: 4305763 (1981-12-01), Quist et al.
patent: 4409038 (1983-10-01), Weber
patent: 4495001 (1985-01-01), Bennett et al.
patent: 4603029 (1986-07-01), Quist et al.
patent: 4861391 (1989-08-01), Rioja et al.
patent: 4929283 (1990-05-01), King et al.
patent: 5108520 (1992-04-01), Liu et al.
patent: 5226983 (1993-07-01), Skinner et al.
patent: 5439536 (1995-08-01), Cho
patent: 5455003 (1995-10-01), Pickens et al.
patent: 5865911 (1999-02-01), Miyasato et al.
patent: 5922147 (1999-07-01), Valtierra-Gallardo et al.
patent: 6074498 (2000-06-01), Waldron et al.
patent: 707373 (1978-10-01), None
patent: 0210466 (2002-02-01), None
“Aluminum and Aluminum Alloys”, ASM International, 1993, pp 30, 121-123, 292.*
“ASM Specialty Handbook: Aluminum and Aluminum Alloys”, ASM International, 1993, p 45.*
PCT Search Report for International Application No. PCT/US01/45326 dated Jul. 15, 2002; 3 pages.
Article from Materials Science Forum vols. 331-337 ©2000 Trans Tech Publications, Switzerland entitled “Alternate Heat Treatments of C458 Aluminum Lithium Alloy”; 7 pages.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

High strength aluminum alloy does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High strength aluminum alloy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High strength aluminum alloy will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3375151

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.