Abstract
Titanium base alloy-Ti-6Al-4V [Ti-64] is extensively used in aero gas turbine [Kaveri engine] for various applications. Majority of the wrought Ti-64 components in the engine are processed through ring rolling/ forging route. Indigenous development and productionisation of the ring forgings have been carried out using the ring rolling mill and allied forging facilities of M/s HAL (F&F), Bangalore / M/s Echjay Industries, Rajkot. Type certified indigenous Ti-64 forging stock [of size up to 250mm diameter] from M/s Mishra Dhatu Nigam Ltd. [MIDHANI], Hyderabad has been used for the development and subsequent productionisation. Satisfactory metallurgical and mechanical properties have been achieved in Ti-64 alloy ring forgings, as per the release specification. Total 79 batches of 29 varieties of the Ti-64 ring forgings for Kaveri engine have been indigenously produced and supplied. This paper presents details of the work done for the indigenous development of Ti64 ring forgings of various sizes for Kaveri engine.
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Neminathan, P.V., Velpari, M.S., Ananda Rao, S.R. et al. Development of ring forgings in Ti-6Al-4V alloy for aero-engine applications. Trans Indian Inst Met 61, 355–361 (2008). https://doi.org/10.1007/s12666-008-0067-5
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DOI: https://doi.org/10.1007/s12666-008-0067-5