Tianfeng Technology, Aero Engine Design Institute.

In the small conference room, Li Tianfeng, Qiu Wen'an, Sun Xiaoping, Wu Yuhua, and several professor-level senior engineers, everyone is looking at the projection of the projector, which is the centrifugal impeller design drawing of the "TFWZ001" turboshaft engine.

Li Tianfeng did not treat Sun Xiaoping badly, the strong man broke his wrist, and came to defect to himself from the sixth design institute "out of the house", plus Sun Xiaoping's original design level was good, Li Tianfeng temporarily gave Sun Xiaoping the position of deputy director of the design institute and deputy chief designer of the "TFWZ001" turboshaft engine.

Sun Xiaoping was very happy with this arrangement, and at the same time, Sun Xiaoping knew very well in his heart that he was now the deputy chief model designer for the time being, but if Tianfeng Technology developed a turbofan engine in the future, he might be the chief designer of the turbofan engine.

In the conference room, the projection is a design drawing, a design drawing of a centrifugal impeller, everyone is looking at it seriously, today, it is equivalent to an internal design review, the object is the centrifugal impeller.

The compressor of the turboshaft engine generally includes the axial flow compressor and the centrifugal compressor part, the centrifugal impeller and the axial flow impeller, which are the most critical and important parts of the compressor part.

The sketch of the centrifugal impeller and the general design scheme are provided by Li Tianfeng, and the specific design is completed by Qiu Wen'an's design team.

Qiu Wenan is introducing the design of this centrifugal impeller to everyone, usually, Qiu Wenan has few words, but when it comes to this professional thing, he is very fluent and methodical.

"Ladies and gentlemen, this is the centrifugal impeller of the TFWZ001 turboshaft engine that we designed. The material is titanium alloy TC4, and the design adopts the most advanced design of large and small blades......"

Qiu Wen'an spoke in detail, and everyone basically heard it clearly and clearly.

The so-called large and small blade design is to add a row of small blades after the full chord length blade of the centrifugal impeller, which has the characteristics of greatly improving the pressurization ratio of compressor blades and reducing the vibration caused by air flow. It is a technology with great potential for development to make the supercharging ratio of centrifugal compressor stage reach 3 or more.

In the 90s, Honeywell and GE in the United States jointly developed and verified the shunt blades. The test results show that the rotor with large and small blades has a high pressurization ratio and efficiency, and reduces the mass and cost.

Such a design was verified abroad in the 90s, and now it is used in the current turboshaft engine, which is not the latest in the world. The most cutting-edge technology, but in China, this is definitely a new technology.

Sun Xiaoping did not participate in the design of the centrifugal impeller, and now after listening to Qiu Wen'an's introduction and explanation, Sun Xiaoping's eyes lit up, but it can be seen from the design of the centrifugal impeller that the TFWZ001" turboshaft engine is definitely the most advanced in China.

Sun Xiaoping was a little excited!

After listening to Qiu Wenan's speech, Li Tianfeng did not express his opinion for the time being. Instead, he asked, "Mr. Qiu, after the design is completed." Have you done any numerical simulations, and what are the results? ”

Qiu Wenan replied truthfully: "Numerical simulation found that the design barely met the predetermined requirements, and the booster ratio was about 3.6. ”

After Li Tianfeng thought about it, "Mr. Qiu, I think there is still room for improvement in the full-chord long blades of the centrifugal impeller. It would be better to improve the leaf shape in this way......"

Li Tianfeng talked about his design ideas, Qiu Wenan and others listened more carefully, and recorded them one by one, after the meeting, they will definitely improve according to Li Tianfeng's requirements.

After listening to Li Tianfeng's speech. Qiu Wen'an, Sun Xiaoping, and Wu Yuhua quietly glanced at each other, and they all saw the joy in each other's eyes, according to such an improvement, the overall performance of the centrifugal impeller will jump a lot, and the boost ratio will also increase by an order of magnitude, reaching more than 4 is certain.

The review of the centrifugal impeller was carried out for more than two hours, and after the review, the design will continue to be improved and perfected, and when the new design drawings come out again, it will be a centrifugal impeller that can fully meet the requirements.

After the review, Li Tianfeng returned to his office and thought a lot, not only about the structure and performance design of the "TFWZ001" turboshaft engine, but also about the materials.

In general, in the selection of materials for the "TFWZ001" turboshaft engine, most of the existing materials are used, and relatively few new materials are used, except for some key components, such as turbines, some new materials are used.

In this way, it is not that Li Tianfeng does not want to use advanced new materials, but the domestic material industry is not good, otherwise, Li Tianfeng will definitely use a large number of new materials, so that Li Tianfeng's design level is there, and the "TFWZ001" turboshaft engine is not only world-class, but the world's top.

The basic use of existing domestic aero engine materials, the development of the domestic top, the world's first-class turboshaft engine, in the design, is a big test, if it is an ordinary person, who can do it? Even Qiu Wenan can't do it, only Li Tianfeng has this confidence.

"It seems that we should start building our own materials research center, develop new materials and produce new materials by ourselves." Li Tianfeng thought in his heart, the importance of new materials to aero engines, Li Tianfeng knows very clearly.

"A generation of new materials, a generation of engines!" Li Tianfeng sighed in his heart.

Li Tianfeng believes that in the future improvement of aero engine performance, the contribution rate of new materials will reach more than 50%; New structures, new materials and manufacturing technologies will contribute up to 70% to the weight reduction of the engine. "Materials first, foundation first" has become one of the important objective laws of aero engine development.

Therefore, before the pre-research and model development of aero engines, the basic research and engineering application research of new materials and new manufacturing technologies should be arranged in advance, and a high-level system of new materials and advanced manufacturing technologies for aero engines should be established, as well as supporting standards, specifications, manuals and test databases, so as to lay a solid technical foundation for the application and development of new materials and new manufacturing technologies in the development of advanced aero engines.

Li Tianfeng is confident in new materials.

Li Tianfeng in the previous life, technology ahead of this era for decades, is not only a famous aviation design expert, but also a doctor of materials science, just kidding, such an outstanding design expert, can catch up with the United States, it is impossible not to understand materials, especially aero engines, advanced new materials, new processes, Li Tianfeng is clear.

The materials research center is planned in the development blueprint of Tianfeng Technology, and the office space of the materials research center will be in the technology center building, in addition, there will be a supporting material research room, and there will also be a production plant.

Money, money, money, it takes a lot of money!!

Whether it is plant construction, equipment procurement, or aero engine research, testing, and the establishment of material research centers, etc., it takes a lot of money.

Man-made diamonds are one thing, at present, Li Tianfeng's funds mainly rely on these incomes, and in addition, Li Tianfeng is actively expanding the processing business, hoping to earn some funds.

At present, Tianfeng Technology's processing business is mainly for the processing of parts of Factory E, Factory B and Harry Burton, which are in full swing, and the parts are processed every day and then sent out.

The processing of these parts, the profit is still considerable, after all, these parts are high-tech parts, the processing cost is not low, and the profit is naturally more objective.

No. 2 processing workshop.

There are a large number of parts processed here, of course, the No. 1 workshop has more parts, the No. 1 workshop has basically stabilized, Li Tianfeng went to relatively less than before, and the No. 2 workshop is more diligent, basically every three or five will come to take a look.

Every time he came over, Li Tianfeng could find that there were new changes here, and when he walked to the vertical machining center last time, the young worker master who was processing parts immediately greeted Li Tianfeng warmly.

Last time, this worker didn't know Li Tianfeng, and he had a sea chat with Li Tianfeng, but now, he naturally knows that Li Tianfeng is his big boss, and he is a little respectful in his enthusiasm.

Li Tianfeng smiled and nodded, Li Tianfeng had already noticed that this vertical machining center had been replaced with a part, which was a part processed for Factory B. Last time, we signed a processing business of more than 20 million yuan with Factory B, and now, some parts blanks have arrived at Tianfeng Technology Company and have begun processing.

"How's the processing going?" Li Tianfeng asked with concern.

The young worker's master said while disassembling a processed part: "Mr. Li, the processing quality is very good, take a look." ”

The parts are not big, Li Tianfeng took the parts and looked at them, the parts were really well processed, and they looked very comfortable, Li Tianfeng put down the parts and patted the young worker's shoulder happily, "Do a good job!" ”

Suddenly, the young workers were inexplicably excited!!

The No. 2 processing workshop was very well planned, Li Tianfeng took a look, walked around, felt very satisfied, just walked to the fitter area, saw a fitter master grinding parts, Li Tianfeng couldn't help but stop.

Among the aero engines, some parts have grinding requirements, grinding is generally a plane, the requirements are relatively high planes, the fitter master is grinding a casing parts, the casing is not big, but Li Tianfeng can see that the worker master grinding is very hard.

Li Tianfeng frowned slightly, walked over, looked seriously, and thought in his heart, what's the matter? It's so hard to grind.

The fitter master who was grinding, knew Li Tianfeng, and when he saw Li Tianfeng, he immediately stopped grinding and greeted Li Tianfeng.

…………

Today's three watches, the second one will be sent!!

Tomorrow Dragon Boat Festival, I wish you all a happy holiday in advance!

……… (To be continued......) R1292