Accession Number:

ADP005931

Title:

Fabrication Characteristics of 8090 Alloy,

Descriptive Note:

Corporate Author:

BRITISH AEROSPACE PLC BRISTOL (UNITED KINGDOM)

Personal Author(s):

Report Date:

1989-08-01

Pagination or Media Count:

10.0

Abstract:

This paper collates some of the experience gained so far, by a user, during a production process evaluation of 8090 medium strength Al-Li Aluminum-Lithium alloy. It examines the four primary production processes, machining, forming, joining, and construction, in this sense finishing, treatments, painting, plating and so forth are classed as secondary processes. Sufficient work has been completed to give the author confidence in the ability of this material to respond to these four basic processes, and produce a quality article. No fundamental changes will be required of machine tools, cutting tools, plat or equipment. Some techniques will change from the conventional alloy requirements, particularly with forming, where further work is required, as 8090 does not form well in the cold condition. Superplastic forming characteristics are noted, extensive work is being done, but the subject is outside the scope of this paper. The author concludes with the view that 8090 medium strength Al-Li alloy is becoming available in sufficient quantity and quality to enable design engineers to specify the material for applications that can exploit the proven weight and strength advantages. The final responsibility resting with the manufacturing engineers to ensure that Al-Li can be utilised as an economic proposition. Keywords Alloys, Great Britain, Metallurgy, Fabrication, Production processes, 8090 Alloy. JG

Subject Categories:

  • Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE