This program was concluted to develop the technology necessary to establish a cost effective approach to the production of titanium alloy parts for both aircraft engine and airframe applications. This approach was based on a PM near-nte shape process utilizing ceramic mold techniques in conjunction with HIP (Hot Isostatic Pressing) to a minimum machining envelope. Program objectives included: the optimization of an exsting PM process for the HIP of near-net shapes of titanium using low-cost tooling; the reduction of the process to an efficient, cost effective, manufacturing procedure; and thorough characterization of the end product. In cooperation with General Electric (GE) and McDonnell-Douglas (MCAIR) as subcontractors, representative components and alloys were selected for this program. These were a Ti-17 compressor stub shaft and a Ti-6-4 keel splice former. Hot Isostatic Pressing parameters were optimized for both the Ti-17 and Ti-6-4 alloy using the ceramic mold process. SiO2 was chosen as the most promising mold material. The ability to produce near-net shapes of both engine and airframe components was sussessfully demonstrated. (DePo)
Consolidation of titanium powder to near net shapes
Verfestigung von Titanpulver bis in die Naehe der Vernetzung
US Government Research Reports ; Mai ; 1-333
1978
333 Seiten
Report
Englisch
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