Accession Number : AD0265546

Title :   IMPROVED METHODS FOR THE PRODUCTION OF TITANIUM ALLOY EXTRUSIONS

Descriptive Note : Interim technical engineering rept. no. 18, 1 Jul-1 Oct 61,

Corporate Author : REPUBLIC AVIATION CORP FARMINGDALE N Y

Personal Author(s) : LEVINE,MURRAY H.

Report Date : OCT 1961

Pagination or Media Count : 54

Abstract : Several Ti-7Al-4Mo alloy billets were individually glass coated with no. 85, 383A and A-40 glass to determine billet contamination at 1800 F for heat soak periods of 45 and 90 minutes. Results of visual micro-examination and of a microhardness survey indicate: (1) glass-Ti reactivity is less for the 383A glass composition, and (2) the greater part of O contamination occurs during the first 45 min of heating. Installation of the 100-kw induction heating unit at the Allegheny Ludlum draw bench facility has been completed. Twelve Tee sections 4 ft long were selected on the basis of dimensional uniformity and minimum surface contamination. These sections were chemically pointed, pickled and annealed in preparation for the first warm drawing trials. (Author)

Descriptors :   *EXTRUSION, *TITANIUM ALLOYS, AIRFRAMES, ALUMINUM ALLOYS, CHEMICAL REACTIONS, COATINGS, CONTAMINATION, GLASS, HARDNESS, HEAT TREATMENT, LUBRICATION, MANUFACTURING, MATERIALS, MECHANICAL PROPERTIES, MICROSTRUCTURE, MOLYBDENUM ALLOYS, OXYGEN, PROCESSING, PRODUCTION, SURFACE PROPERTIES, TENSILE PROPERTIES

Distribution Statement : APPROVED FOR PUBLIC RELEASE