IMPROVED METHODS FOR THE PRODUCTION OF TITANIUM ALLOY EXTRUSIONS
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 1/16 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 wool/granular 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 1/16 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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1962
- Accession Number
- AD0292240
Entities
People
- Murray H. Levine