Thanks for the post
According to wikipedia:
Titanium Sponge Plant is an Indian manufacturing plant that produces titanium sponge, a material widely used in aeronautics, light defence vehicles, and other applications. It is located at Kerala Minerals and Metals Ltd (KMML), Chavara, Kollam district of Kerala. Notably, It is the only plant in the world in India has the third-largest reserves of Titanium containing minerals, and was the sixth-largest country by Titanium production in 2013.
Using the indigenously made titanium sponge, VSSC realized the aerospace-grade alloy, having formula Ti6Al4V, at Mishra Dhatu Nigam (Midhani) in Hyderabad.
Some alloys developed by DMRL for aerospace projects:
Also here some more info
Titanium Sponge Extraction Technology | Defence Research and Development Organisation - DRDO, Ministry of Defence, Government of India
A Historic Moment for DMRL 6 September 2011 became a historic moment for DMRL as well as for the country as the 1st batch of 3000 kg titanium sponge was produced at the Kerala Minerals and Metals Limited (KMML), Kollam, using DMRL technology. The entire process was carried out under the...
Indigenous Production of Titanium Sponge | Defence Research and Development Organisation - DRDO, Ministry of Defence, Government of India
DMRL has developed a state‐of‐the‐art technology for Ti sponge production from indigenous raw material (TiCl4) with quality of the sponge meeting international specifications. Transfer of Technology First commercial plant for Ti sponge production has been set up in the country based on...
Initiatives
www.kmml.com
presentation link:
https://cdn.ymaws.com/titanium.org/resource/resmgr/TiUSA2104Papers/JacksonChristopherTiUSA2014W.pdf
attached reports
Good effort is made. Needs to be congratulated for the data. These are very old articles, spanning back to 2012/2014 and earlier. There must have been quite a good development by now, can anyone throw light on the latest development vis a vis what is still we are lacking in producing composite materials required for the Kaveri Engine.
what composite you are talking about?
no military turbofan in the current age uses composite in even cold parts.
its very distant dream.
even 5th gen engine like f135 uses single crystal blades and metal bypass duct.
3rd gen SC blades vanes with TBC coating done using EBPVD method.
— Arihant_Ray (@Ray70409890) March 4, 2025
DMRL DMS4 SC HPT blade has a higher TET of 1140 deg C vs 1104 deg C of Rene N6 HPT blades of F414.
SC turbine blades, vanes are produced by using orthogonal grain selector from advanced Ni‐base super alloys. pic.twitter.com/M5bv0AeFzM
Are these single crystal blades coated with EBPVD? What colour is the uncoated surface.
Great thread on cmc materials and its use in engine technology
Thread 🧵 Ceramic matrix composite (CMC) materials
— shreedhar singh (@shreedharsingh9) February 23, 2025
CMC materials is a type of composite materials,CMCs are designed to overcome the brittleness of traditional ceramics while maintaining their high-temperature resistance, lightweight nature, and excellent wear resistance.
Fan stage rotor and fan outer casing of Kaveri Derivative engine.
— Arihant_Ray (@Ray70409890) March 8, 2025
KDE has a higher dry T/W ratio vs AL-31F and FP. pic.twitter.com/AOJbcj9lVb
HAL has made their own aerospace grade metal 3D printer:
You mean 3D printing? Because that EOS M400 is from EOS Gmbh, A German Company.
There seems to be a small scale 3D printer from Wipro for Aerospace Products. Don't know what happened to that. Another thing is we need to seriously look into Indigenous Jet Engine Making machines, some of them like EBPVD lab scale machines are already used for Shakti engines. We need 100s of Engines everyyear, and I doubt we could comfortably import as much as possible. Yours truly Unkill Sam has some tricks to play here. The Germans aren't our best friends. Don't know about Japanese.
No one is friend as far as strategic capabilities concern. You need home based test facilities and indigenous programme. As you reach on sufficient maturity you will get offer for Co-development.
baseline kaveri uses DS blades. As for sx, dms4 is not fully production-ready afaik. Work is still ongoing on that front but close enough. cmsx-4 is the option iirc. as for cooling holes it is wip.
— Sriram (@sriramthg) March 11, 2025
Major technology development by us for jets engines.
— shreedhar singh (@shreedharsingh9) March 12, 2025
1 . Single crystal turbine blade
➡️ We have developed two types of single crystal blades, GTRE developed the 3rd generation SC for AL31 in collaboration with HAL in 2012 and another 4th generation SC blade in 2021 by GTRE. pic.twitter.com/vSmlcPupRA
Major technology developed by us for engine development
Is it the latest development that is being used by GE and others? This 4th generation SC blade is in 2021.
