k7x
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found this interesting article
http://mod.nic.in/reports/AR-eng-2009.pdf
"Ceramic Cores for Kaveri Engine Aerofoil
Castings: Through sustained research and
development efforts at DMRL, a viable
process based on Ceramic Injection Moulding
has been developed. The capability of the
shaping process is demonstrated by making
highly complex and intricate ceramic cores
required for making the five critical Kaveri
gas turbine engine blades and vanes. These
cores meet the stringent dimensional and
other quality requirements needed for their
use in the investment casting components.
Currently, this process is being extended to
produce cores for land based turbine blades,
a spin-off benefit for civilian applications."
"High Pressure Turbine (HPT) Blade for
Adour Engine: Vacuum investment casting
technology has been established for
production of intricate, hollow castings,
meeting the stringent requirements of Kaveri
engine. This indigenous technology has
successfully been extended to produce
directionally solidified hollow HPT blades
for Adour engine, in association with HAL.
Efforts are on to produce ceramic cores, the
only component procured from a foreign
source, also in-house. This technology will
soon be transferred to HAL, Koraput for
commercial production."
- I thought India is struggling with outdated materials ( SC blades will not be the most used blades for future; every one is heading towards Ceramic Composite matrix ) But after reading it ; India is very much inline with others.
http://mod.nic.in/reports/AR-eng-2009.pdf
"Ceramic Cores for Kaveri Engine Aerofoil
Castings: Through sustained research and
development efforts at DMRL, a viable
process based on Ceramic Injection Moulding
has been developed. The capability of the
shaping process is demonstrated by making
highly complex and intricate ceramic cores
required for making the five critical Kaveri
gas turbine engine blades and vanes. These
cores meet the stringent dimensional and
other quality requirements needed for their
use in the investment casting components.
Currently, this process is being extended to
produce cores for land based turbine blades,
a spin-off benefit for civilian applications."
"High Pressure Turbine (HPT) Blade for
Adour Engine: Vacuum investment casting
technology has been established for
production of intricate, hollow castings,
meeting the stringent requirements of Kaveri
engine. This indigenous technology has
successfully been extended to produce
directionally solidified hollow HPT blades
for Adour engine, in association with HAL.
Efforts are on to produce ceramic cores, the
only component procured from a foreign
source, also in-house. This technology will
soon be transferred to HAL, Koraput for
commercial production."
- I thought India is struggling with outdated materials ( SC blades will not be the most used blades for future; every one is heading towards Ceramic Composite matrix ) But after reading it ; India is very much inline with others.