The applicability of centrifugally cast Titanium (Ti6Al4V) for the manufacture of a critical helicopter component - a rotor head - has been investigated. The economic aspects have also been taken into consideration. The results of the present investigation can be summariesed as follows: The endurance limit of cast Titanium is approximately 63 % that of the wrought alloy. An acceptable component fatigue life could, conceivably, be obtained by incorporating minor design modifications. A 15 % reduction in the machining costs was achieved. This factor alone does not make casting a viable economic alternative to forging especially in view of the almost identical price for the forged and cast rotor head blank. However, improvements in the centrifugal casting technique leading to enhanced microstructural and mechanical material properties, would certainly play a decisive role in extending the application of cast Titanium in the Aerospace industry.
An evaluation of vacuum centrifuged titanium casting for helicopter components
Untersuchung von Hubschrauberteilen aus Titan-Vakuum-Schleuderguss
1982
7 Seiten, 10 Bilder, 4 Tabellen, 6 Quellen
Aufsatz (Konferenz)
Englisch
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