Prof. Dr. In his speech, Mandal said that as a result of the collaboration of Materials Institute and TEI, single crystal turbine blades, which are among the most critical technologies, have been successfully produced.
Pointing to the difficulty of having a single crystal technology, Mandal pointed out that they were talking about a material that would work at 1400 degrees under high pressure and in a corrosion environment.
Mandal emphasized that both the refrigerated system and the non-refrigerated system cover a learning process from its design to production, “Therefore, I think that besides the production here, the competence and talent and material technologies we have gained here are also important for the development and sustainability of our country, especially in the defense industry. . ” said.
“A really important achievement for our country”
Mandal stated that they developed the turbine blades working under difficult conditions and sometimes impossible to import together with TEI and delivered the first set.
“This is really an important achievement for our country. It was always said about domestic and national production: ‘Yes, you have a helicopter, but is the engine of this domestic?’ Yes, now TEI can produce it locally. Yes, there is an engine, but can the components inside the engine be produced locally and nationally? Yes, we can now produce the turbine blades, the most difficult component of our country’s first domestic and national turboshaft engine, by TÜBİTAK MAM. A very limited number of countries in the world have this technology. It is a very complex and difficult design, it is not an easy process to do them. We have realized this. Of course, this is not a finished process. There is definitely a continuation. TÜBİTAK Materials Institute and TEI signed Aviation Engine Materials. With the Development-Ore Project, it will now be able to produce Nickel-based superalloys for these and similar applications, starting from the raw material. “
“Our friends at TÜBİTAK MAM brought the wing technology we needed”
TEI Chairman of the Board and General Manager Mahmut Akşit said that he was also a member of the board of directors of EÜAŞ when he was a faculty member at Sabancı University.
Akşit explained that they attempted to manufacture industrial gas turbines that produced energy at that time and that they brought this infrastructure to TÜBİTAK MAM, and after transferring to TEI General Directorate, one of the most critical parts was again the turbine blade because it contains high technology, it is an “export control” product. noted that.
Akşit pointed out that even if they sell the wing itself, they do not share the technology, how it is produced and such things, and stated that they decided to develop the wing technology here because they knew the infrastructure of TÜBİTAK MAM.
Akşit emphasized that although the fins used in aircraft engines are smaller, it is a higher technology and a more challenging process, “Thank God our friends at the TÜBİTAK MAM Materials Institute have achieved this with their foreheads and brought the wing technology we need. said.
“It was the first time to see them together as a full set”
Akşit stated that those received were not the first turbine blades produced by TÜBİTAK, these blades were used in the engine they previously delivered to TAI, but they could not hold a ceremony at that time.
Stating that they bought the previous turbine blades as they completed them, Akşit said:
“What you see here is a complete set of motors. Both the first stage is single crystal but with internal cooling blades, which is much more difficult and the second stage is still single crystal but without internal cooling blades. We aim to use this in our number 5 engine. The engines we gave were delivered. This is the full set of our number 5 engine. It was the first time to see them together as a full set. “
Stating that they produced the engine number 4 and that their tests are continuing, Aksit said, “We delivered our first national helicopter engine TS1400 on 5 December. These wings will hopefully be mounted on our TS1400 number 5 engine. I hope they will work on Gökbey helicopter.” he spoke.
Pointing out that when the most critical parts in an engine are listed, the first stage blades come first, Akşit said, “Then maybe the combustion chamber can come, then the second stage wings come as the temperature and the difficulty of technology. The compressor side is also very difficult, but the most difficult is the first stage single crystal wings. The most critical. piece. If you cannot do this, I will not say that you cannot start the engine, even if you start it, you cannot generate power. You cannot go to high temperatures. ” used the expressions.
Akşit said the following regarding the function of single crystal turbine blades in engines:
“All jet engines work with the expansion of the warmed air like other fossil fuel engines. How do we heat the air? We put the fuel in it and strike the match to make the air warm and expand. To do this, we need to take the air from the compressor and compress it. If we do not compress the air, the burning event is very slow. and we get much lower power from the same engine. We turn the part into rotational motion by hitting these hot blades, which absorbs the air in the compressor and supports the compression. Without these blades, the engine would not work. So these blades operate the compressor by consuming considerable power. “
After the speeches, Mandal delivered the first set of turbine blades to Akşit.
Later, Mandal and Akşit made examinations at the High Temperature Materials Research Development and Repair Center of Excellence.