Accession Number:

AD0292240

Title:

IMPROVED METHODS FOR THE PRODUCTION OF TITANIUM ALLOY EXTRUSIONS

Descriptive Note:

Corporate Author:

REPUBLIC AVIATION CORP FARMINGDALE N Y

Personal Author(s):

Report Date:

1962-12-01

Pagination or Media Count:

1.0

Abstract:

The most significant conclusion of the overall extrusion program has been the successful completion of the extrusion phase in terms of extruding 20 feet lengths of 116 in h cross section tee shapes in 7Al-4Mo, 6Al-4V and 4Al3Mo-IV titanium alloys. The success of this program can be attributed to the following conditions alumina-coated dies, improved billet preparation, and composite glass woolgranular glass die pad lubricant. Further studies in terms of glass wool behavior during this quarter indicate that the best overall extruded qualities in terms of die fill and surface smoothness are obtained when high viscosity glasses in fiber form are used as part of the composite die pad lubricant. Successful pre-heating, gripping and warm drawing of extruded 116 inch tee shapes to thinner sections have been realized utilizing the newly constructed resistance heated muffle tube furnace, and the Hufford Universal Jaw grips. Redesign of the tungsten carbide draw dies to extend the orifice of the tungsten carbide draw dies to increase the vertical and horizontal leg dimension will permit final reduction of the above shapes to a .040 inch cross section. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE