Many enterprises began to learn from Tianfeng Technology Company, referring to these process regulations, to improve and perfect their original processing technology one by one, however, to reach the process level of Tianfeng Technology Company, I am afraid that it is not an overnight thing.

For example, Plant E was the first to learn from Tianfeng Technology Company in terms of technology, and under the leadership of Yang Xianfeng and Liu Qingshan, the entire process system of Plant E was learned from Tianfeng Technology Company, and it was compiled with reference to the method of Tianfeng Technology Company.

Of course, in the past few years, the overall process level of factory E has been greatly improved, but in order to reach the level of Tianfeng Technology Company, the road is still very far, and there is still a big gap.

……

Tianfeng Technology Co., Ltd., a workshop for blade manufacturing.

With the second phase of Tianfeng Technology Company put into use in the first half of the year, many processing workshops have changed from the original one to the current two.

Such as the previous blade manufacturing workshop, now divided into two, the scale has doubled, the production capacity has also doubled, now there is a blade manufacturing workshop specializing in processing working blades, and a blade manufacturing workshop specializing in processing guide blades.

The blades of aero engines are generally divided into two types, namely working blades and guide blades. Working blades, as the name suggests, are blades that push the engine to work under the action of air flow and gas, such as fan blades, compressor blades, and turbine blades.

In fact, these blades are actually fan working blades, compressor working blades, turbine working blades, but everyone is used to omitting the word "work", and is used to calling fan blades, compressor blades, turbine blades, etc.

Guide vanes, as the name suggests, are blades that guide air and gas. According to the pneumatic principle, the air flow is guided in order to obtain greater utilization and power.

The "TFWS003" turbofan engine is designed on the basis of the turbofan 16 engine, and most of the parts structure and design principles are very similar to the turbofan 16 engine. Just a little smaller, like a smaller version of the turbofan 16 engine parts.

However, there are also parts that have been redesigned with new materials and new designs, such as this titanium matrix composite integral leaf ring.

The integral leaf ring is a part of the compressor part of the "TFWS003" turbofan engine, and the design structure of the integral leaf ring adopts a new type of titanium matrix composite material, which is a new attempt. This is the first time that Tianfeng Technology's turbofan engine has been used.

Titanium matrix composite integral leaf ring is one of the key points of engine development, Li Tianfeng is naturally not far behind, "TFWS003" turbofan engine compressor has a total of 4 low pressure levels, 5 high pressure levels, and the 3rd and 4th stages of the compressor are designed with titanium matrix composite integral leaf rings reinforced with silicon carbide fiber.

This design greatly reduces the rotor mass, such as the rotor mass of the 3rd stage integral blade ring is only about 3.1kg. And the same nickel-based alloy rotor mass is 21kg.

This design also meets the requirements of high speed and high temperature. The mass of the disc is reduced, the manufacturing cost is reduced, and the maintainability is improved.

The 3rd and 4th stage drums of the compressor are silicon carbide fiber reinforced titanium matrix composites, which weigh only 30% of the conventional metal material drum structure. The integral blade ring and the corresponding drum are made into a single unit by bonding process, forming a compressor disc with blades, and the overall weight is greatly reduced.

Because it comes to new materials. In the new process, Li Tianfeng pays more attention to the manufacture of the overall leaf ring, and has been here many times before, and has also personally guided the manufacture of the overall leaf ring.

Today, it is the manufacture of the third batch of monolithic leaf rings. Li Tianfeng came over again in person, and when he entered the first workshop of blade manufacturing, Li Tianfeng saw Zeng Qinghai and several technicians in charge, Zeng Qinghai seemed to be holding a part in his hand.

Seeing this, Li Tianfeng thought in his heart, this batch of overall leaf rings should be manufactured, but he didn't know what the quality was, so Li Tianfeng sped up.

The first two batches of the overall blade ring manufacturing, the first batch is relatively poor, after improving the process, the second batch is slightly better quality, but it still does not meet Li Tianfeng's quality expectations, improve and perfect the process again, this is the third batch.

Li Tianfeng walked over, and when he saw Li Tianfeng coming, Zeng Qinghai looked happy, and said loudly: "Boss, I was about to report to you, this time we succeeded, this piece of the overall leaf ring fully meets the quality requirements, you can take a look." ”

Li Tianfeng took the whole leaf ring, looked at it with great interest, and after looking at it, Li Tianfeng was very happy, "Mr. Zeng, the quality seems to be good, has the size measurement been completed?" ”

Zeng Qinghai said: "The size inspection has been completed, the dimensions are all qualified, and next, the material performance test will be carried out, as well as the low cycle fatigue test, if they are all qualified, then the completion is successful." ”

Li Tianfeng pointed a little, the size is qualified, the material properties are qualified, and the low-cycle fatigue test is qualified, which means that the overall leaf ring of this batch is completely qualified, and its manufacturing process is also successful and can be stabilized.

Li Tianfeng said: "Mr. Zeng, you are amazing for solving such a key manufacturing process!" ”

Zeng Qinghai was naturally full of joy when he was praised by Li Tianfeng, but Zeng Qinghai knew that a large reason for his success was because of Li Tianfeng's guidance, and without Li Tianfeng, Zeng Qinghai was not sure that he would succeed so quickly.

Zeng Qinghai said: "Boss, the main reason for the success of manufacturing is your technical guidance, otherwise, we are still confused and constantly groping." ”

Li Tianfeng smiled, Li Tianfeng thought in his heart, the integral blade ring in the entire "TFWS003" turbofan engine among all the parts, belongs to the new design, new materials, new process parts, the difficulty is also the greatest, now, has also been successfully solved.

The rest of the parts, even if some are new designs, but the difficulty is far from so great, and those parts designed from the turbofan 16 engine scale, because the manufacturing process can learn from the turbofan 16, there is almost no difficulty at all, according to the technical strength of Tianfeng Technology Company, after one or two batches of parts of the trial processing and verification, basically the processing technology can be finalized.

Li Tianfeng said: "Mr. Zeng, the titanium matrix composite material integral blade ring has also been successfully overcome by us, our 'TFWS003' turbofan engine, basically no more obstacles, I estimate, before the end of this year, can fully complete the trial production and verification of all parts." ”

Zeng Qinghai also said with confidence: "Boss, before the end of the year, there will definitely be no problem, and our process verification will be fully completed." ”

Li Tianfeng nodded and said: "After the New Year, the assembly of our first prototype of the 'TFWS003' turbofan engine will also begin." ”

Hearing this, not only Zeng Qinghai, but also the surrounding craftsmen were slightly excited, following the turbofan 16 engine, turbofan 17 engine, this is the third turbofan engine, so fulfilling!

Li Tianfeng looked around at everyone, couldn't help but smile slightly, nodded, Li Tianfeng didn't have a sense of accomplishment in his heart.

This is Tianfeng Technology's third turbofan engine, with a thrust rating of 10,000 pounds, because of some new designs, its fuel efficiency is slightly higher than that of the turbofan 16 and turbofan 17 engines, and it is also a low-noise, low-emission design.

Li Tianfeng thought in his heart, perhaps, after the official mass production of this engine, there will be a broader market prospect.

………

Tianfeng Technology Company's scientific research and production, everything is orderly, tense and orderly, these two days, Li Tianfeng is looking at a large stack of thick test flight reports.

The turbofan 17 engine, after nearly three months, finally completed a series of verification test flights, the test flight reports, piled together, a thick stack, Li Tianfeng personally looked at it.

After roughly reading these test flight reports, Li Tianfeng was full of confidence that after so long and so many verification test flights, the turbofan 17 engine performed perfectly on the ARJ21 regional airliner, and the comprehensive performance was very outstanding.

Li Tianfeng thought in his heart, it is time to apply for the production license of the turbofan 17 engine, otherwise, it will be the end of the year if it is delayed, and he was full of confidence to promise Mr. Lin of AVIC Group to start the batch delivery of the turbofan 17 engine before the end of this year.

The turbofan 16 engine, which has been successfully mass-produced, has also begun to be delivered to the military and Embraer, even COMAC, which has already delivered ten units, and the delivery of the turbofan 16 engine has not had a single problem.

The turbofan 17 engine is different, and now it has just completed a series of test flight verifications, and it is still waiting to apply for a production license, and after obtaining the production license, mass production will begin.

"The turbofan 17 engine factory test verification and field test flight verification have performed very well, and then it is basically impossible to make design changes, and it is basically completely finalized, is it possible to carry out mass production now?" Li Tianfeng thought so in his heart.

After thinking about it, Li Tianfeng nodded lightly, it should be completely okay to carry out small batch production now, and then mass production will be carried out when the production license is officially down.

So, Li Tianfeng picked up the phone, dialed Xu Lilong's phone, and after explaining on the phone, Li Tianfeng said: "Mr. Xu, the matter of applying for a production license for the turbofan 17 engine will be handed over to you." ”

Xu Lilong said: "Boss, don't worry, I am familiar with things like me, and there is no problem." ”

After talking to Xu Lilong about applying for a production license for the turbofan 17 engine, Li Tianfeng walked out of his office and walked towards Sun Kang's office next door.

…………

Today's two watches, the second one will be sent.

Tomorrow, our "Aviation Dream" is recommended on the six-frequency small cover of the main station of the starting point, and you can see this book on the home page of the starting point, and the heart of the shell is really happy and nervous, at the same time, thank you for your long-term support, otherwise it would be impossible to recommend it. (To be continued......)