Manufacturing Methods for Production of Titanium Alloy Compressor Disks from Powder Billet.
Abstract
The original intent of the program was to establish methods of producing forged billet consolidated from Ti-6Al-2Sn-4Zr-6Mo alloy powder and forging billet into advanced engine compressor disks using the GATORIZING forging process. However, powder contamination problems necessitated a redirection of the program. The modified program included the evaluation of consolidation methods and quality control procedures. A partially successful method of cleaning contaminated titanium powder was developed. Clean titanium powder is not currently available. Methods capable of removing some contamination were evaluated. These methods are a possible remedy, but not a cure and may introduce additional contaminiation into the powder. Mechanical properties of extruded and forged Ti-6Al-2Sn-4Zr-6Mo powder billet compare favorably with conventionally processed billet receiving similar heat treatments with the exception of lower tensile ductility. Tentative powder and billet specifications were written and will be used until powder free of contamination is available. Additional methods of producing titanium powder without contamination should be investigated. Cleaning techniques should not be used as part of a standard powder making process. A clean powder product must be developed before a production forging process can be optimized or parts tested in an engine. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1977
- Accession Number
- ADA062686
Entities
Organizations
- Pratt & Whitney