Start with the aviation industry

Chapter 345 Wang Tianfang asks for help

"What did I just see!"

"Damn it, you broke the sound barrier so quickly!"

"This plane is so awesome, it's a mess!"

"..."

The whole ground instantly boiled! ! !

Several leaders of the flying brigade were paying attention to the two new fighter planes. Seeing this situation, they were slightly surprised at first, and then became eager in their hearts.

"Old Li, this fighter plane is even better than we imagined!"

"Well, it's totally amazing!"

"We have to make another report and let the higher-ups prioritize our brigade!"

"..."

Several leaders of the brigade were discussing so heatedly, a voice sounded behind them, "What are you thinking about, the next new fighter must be equipped with our brigade!"

That was another team leader, leading a few people over quickly, and they also saw clearly the situation of the two fighter planes just now.

The eagerness in my heart!
Hearing such words, how could he remain calm, come over immediately, and said loudly, "Your brigade has already equipped two planes, and it's our brigade's turn next!"

"We only equip two planes, which is not enough, we must equip 24 planes."

"What a beautiful thing to think about. We don't even have one equipped, yet you want to equip 24!"

"..."

Several leaders of the two brigades were arguing about the new fighter plane, and Liu Zhiyuan also drove the fighter plane to an altitude of several thousand meters very quickly.

It feels so cool to him!

It's so cool!
I have been driving a fighter jet for a lifetime, and it is the first time that I found out that the power can be so powerful. What kind of engine is this? It's amazing!

After reaching a sufficient height, I started to do some tactical moves according to the training requirements, and found it very easy and enjoyable.

He had a full understanding of the maneuverability of this fighter plane, and wondered more than once in his heart, should we come to something more difficult.

Such as cobra maneuver!
In the end, I gave up this idea. Although there shouldn’t be any technical problems, it’s not good to perform such difficult moves when driving a new fighter for the first time.

If you can't play the Cobra maneuver, then you should be able to try the fastest speed of this fighter!
So, I pushed the joystick, and the engine provided more thrust with a bang, and soon reached the maximum thrust in the non-afterburning state, which is 165 kN!

In fact, Liu Zhiyuan wanted to try using the afterburner, but he said during the flight training that the afterburner should not be used unless necessary.

He vaguely knew the specific reason, and was worried that the fighter plane might not be able to handle it with too much thrust.

He also heard that the design and development personnel are improving and improving this fighter. Now it is only A-type fighter, and there will be no problem with the future B-type fighter, and there will be no problem with full afterburner.

boom!
Under the powerful thrust of 165 kilonewtons, the speed of this fighter plane climbed in a straight line, and soon broke through Mach 2, and there was no tendency to stop at all!
This push back feeling, this speed, is really enjoyable!
The speed climbed up to Mach 2.8 before it stabilized. Liu Zhiyuan found it enjoyable and flew at this speed for at least ten minutes. It was not until the voice of requesting to return to the flight came from the wireless headset that he made a large-radius turn and started to return.

In the end, the plane landed steadily at the airport, and Liu Zhiyuan was soon surrounded as soon as he got off the fighter plane.

"Old Liu, how do you feel!"

"It should be very cool!"

"Talk to us, we can't drive it for now, but would like to know what it's like to drive it."

"..."

Facing the siege, Liu Zhiyuan laughed happily when he saw these people saying something to you and me, and began to tell everyone what it was like to fly this fighter plane.

"Comrades, I can tell you that I have never had such a good time in my life!"

what!
is this real!
Just such a sentence lifted everyone's interest, at least dozens of pairs of glasses looked at him, waiting for the next sentence.

Someone guessed that they couldn't wait any longer, and said eagerly, "Old Liu, don't be tricky, tell us quickly!"

"Yes, speak quickly, speak quickly!"

Sensing everyone's eagerness, Liu Zhiyuan smiled, and didn't mean to put on a show, "If you want to talk about the specific feeling of driving this fighter, it is its excellent maneuverability and powerful acceleration performance!"

"You don't know, just push the joystick, and there will be a strong push back feeling immediately. I just flew at a speed of Mach 2.8 for at least [-] minutes..."

Everyone listened to Liu Zhiyuan talking about the feeling of flying this fighter, and there were bursts of exclamations from time to time, and some people were really a little scared.

Many pilots even said in their hearts, I will submit a written application immediately, and strive to be able to fly this new fighter.

In the next few days, the Air Force Brigade will receive a large number of written applications, and various pilots have asked to fly this new fighter.

Of course, this is something.

Now everyone is listening to Liu Zhiyuan talking about the driving experience of this fighter plane with great interest. Liu Zhiyuan's eyebrows are beaming, and there are applause on the scene when he talks about the excitement.

Liu Zhiyuan said, "The maneuverability of our new fighter is so good, I guess it would be a piece of cake for it to maneuver with the Cobra."

"With its powerful thrust, it can fly up to Mach 2.8 without afterburner. This speed is enjoyable. The key is that it can fly like this for a long time!"

Everyone was excited!

Liu Zhiyuan said slightly regretfully, "Unfortunately, afterburner flight is not allowed for the time being, otherwise, I really want to experience it."

Someone nearby broke the news, "I heard that the design and development personnel are already improving and improving the fighter, and the future B-type fighter can fly with afterburner."

Liu Zhiyuan said, "After the B-type fighter is equipped with troops, I must try it. I think I can fly to Guam with one kick of the accelerator!"

There were happy laughter all around.

With the official entry of this fighter plane into the army, some of its situation has also been fed back to the design and development unit of the fighter plane.

As the chief designer of this fighter, Zhu Zhiwen has of course received feedback from everyone, and the super maneuverability of this fighter received the most feedback.

No, there is still a design expert reporting to Zhu Zhiwen some information fed back by the troops.

"Mr. Zhu, we have received a lot of feedback in less than a week. All the pilots who have flown this new fighter are full of praise."

"What everyone is most satisfied with is its excellent acceleration performance, high-sonic cruise, and good maneuverability..."

Zhu Zhiwen listened carefully, and then said, "If we complete the design improvement and improvement, the military will have a higher evaluation of this aircraft."

"Therefore, the top priority is to complete the design improvement and improvement as soon as possible. In addition to high maneuverability, it must also have high situational awareness. The avionics system, especially the radar fire control system, must be fully upgraded."

He can't do high stealth performance.

However, high maneuverability and high situational awareness can be achieved. As long as these two points are achieved, this fighter will undoubtedly be the leader among the third-generation fighters. In addition, he will use this design improvement to fully consider and The compatibility of those weapons and equipment designed and developed by Leihuo Weapons Branch.

That is to say, all kinds of missiles, precision-guided bombs, etc. designed and developed by Leihuo Weapons Branch, etc., all that can be used by this fighter, must be used.

These are all weapons of the world's advanced level, whether it is air-to-air missiles, air-to-ground missiles, or precision-guided bombs and so on.

The top priority is to speed up the design improvement, complete it as soon as possible, and manufacture the B-type machine as soon as possible. The A-type machine is just a transition, and the number will not be large.

The military's thinking was the same as Zhu Zhiwen's. Within a few days, a military leader called, mainly asking about the improvement of the design of this fighter plane.

"Mr. Zhu, the pilots have a high opinion of this fighter. All the flight teams have issued reports, strongly requesting to install a large number of new fighters. For the A-type aircraft, we plan to produce only 30. In the future, they will be designed and improved. Model B."

Zhu Zhiwen was very stressed, but he still replied, "Leader, give us about a year to complete the design improvement."

"No, one year is too long." The leader had little room for negotiation, "It will take about half a year to complete the design improvement, and the B-type machine will start to be deployed in the troops after one year."

but
Zhu Zhiwen still wanted to say something, and tried hard to buy some time, but there was no chance to speak at all.

The military leader said, "Do you know that the stealth strategic bomber designed and developed by Leihuo Technology Industrial Group will start the final assembly of the first prototype in a short time. Look how fast they are. You can't be too slow. It will take about half a year to complete a comprehensive design improvement.”

In this way, what else can Zhu Zhiwen say.

After putting down the phone, I was also in admiration in my heart, Leihuo Technology Industrial Group is a real hero, how long has it been, and it is actually ready to start the final assembly of the first prototype.

It is simply a miracle!
Alas, no comparison, no comparison at all!

Zhu Zhiwen certainly knows how difficult it is to design and develop a world-leading stealth strategic bomber. Even so, Leihuo Technology Industry Group did not take long. Already a lot.

Phoenix factory.

Not long ago, Wang Tianfang was successfully promoted to the No. 50 leader, and the former No. [-] leader Sun Jiangbo retired honorably. The first great event for him as the No. [-] leader was to usher in a big order from the military, ordering [-] turbofan engines at one go.

Their small and medium-sized turbofan engines have just entered the stage of small-batch production. So far, only a dozen units have been produced, and there are still many problems. Wang Tianfang is both happy and stressed.

The design problem is not that big, because this turbofan engine is an imitation of a certain turbofan engine of Lao Maozi. The problem is mainly in materials and manufacturing.

He can't solve the material problem in a short time. At present, he only wants to solve a series of technical problems in manufacturing.

Why did the military suddenly increase the order for this small and medium-sized turbofan engine? Because the military suddenly has an increased demand for advanced trainer aircraft, and the power used by a certain advanced trainer aircraft is this small and medium-sized turbofan engine.

What is the main manufacturing problem of this engine at present, which is the processing of the compressor wheel.

There are nine stages of compressor wheels in total, made of titanium alloy, light in weight, thin in wall, and easily deformed during processing. However, the precision of each stage of compressor wheels is very high, and if the amount of deformation is too large, it will be scrapped.

Because the compressor wheel is a key part, it not only requires high precision, but also has a very small tolerance for tolerance. For example, a certain key dimension has a tolerance of only ±0.02, and once the tolerance exceeds 0.015, it can only be scrapped.

In order to overcome this technical difficulty, Wang Tianfang personally took charge of it for more than a year, but there was still little effect. The processing of the compressor roulette was entirely based on luck, and the pass rate was frighteningly low.

If it is a trial production or a small batch production, it is better. Anyway, there are not many engines throughout the year, and it will be different to enter mass production. Such a low pass rate is definitely not acceptable.

Worried about the processing of the turbofan engine compressor wheel, the phone on the desk rang.

As soon as the call was made, Lin Feng's call came, "Mr. Wang, I have already entered your factory, should I go directly to workshop 406, or go to your office first."

In order to solve this processing problem, Wang Tianfang racked his brains and had no choice but to ask Lin Feng for help, inviting him to come and have a look and give him an idea.

Lin Feng was also straightforward, and he agreed immediately. Didn't all of this have already entered the Phoenix Factory.

Wang Tianfang said, "Come to my office first, I'll pick you up at the bottom of the office building."

After a while, Wang Tianfang received Lin Feng and warmly invited him into the office and sat down on the sofa.

Wang Tianfang said, "Mr. Lin, this problem has caused us a lot of trouble. You are also producing turbofan engines, and they are world-class high-thrust turbofan engines. I hope you can give us some ideas."

He knew that Lin Feng's technical level was very high, and Leihuo Technology Industry Group was producing the world's top-level turbofan engines, and the relationship between the two was very good, so he asked Lin Feng to come and have a look.

The design drawings of the first to ninth stage compressor roulettes were ready, Wang Tianfang first spread out the design drawings of the third stage compressor roulette on the big table, and introduced, "We happen to have the third stage compressor roulette Preparing for finishing in the 406 workshop, machining deformation often occurs in the finishing process”

Combining this design drawing, he introduced the specific situation of the problem. The processing deformation of each stage of the compressor wheel appeared in the precision numbering process, and even after the precision numbering was completed, the parts were clamped on the machine tool and checked. If it is qualified, it is unqualified after being removed from the fixture and checked again, because the parts are deformed.

Of course, this deformation is very small, invisible to the naked eye, and can only be found through dimensional measurement, because the dimensional tolerance is very small, and the precision requirements for the parts are very high. Once a small deformation may cause the size to fail.

There are even parts that are disassembled from the fixture for size measurement and are qualified. After half a day or one night, if the measurement is performed again, it will be found that there is a slight deformation, and the originally qualified parts become unqualified.

This made many technicians almost go crazy, and Wang Tianfang didn't understand what was going on, why the good parts failed after a long time.

Lin Feng listened carefully, and said after listening, "I guess it should be stress deformation. The stress inside the part is released, and the part is deformed."

Wang Tianfang's eyes lit up slightly, and he said in his heart, as expected of Mr. Lin, he immediately guessed that the deformation of the parts might be due to the release of stress. He worked on it for more than a year, and then slowly realized that it should be stress deformation.

It's just that I know that the deformation of the part may be caused by the stress problem, but I don't know why the stress is generated, let alone how the stress causes the deformation of the part.

"Mr. Lin, what is the stress deformation, how to solve this problem, do you have a solution?"

Lin Feng said, "As for the process specification of the third-stage compressor wheel, I want to take a look at the entire processing process from beginning to end."

Wang Tianfang quickly found the entire process specification for the third-stage compressor roulette, and Lin Feng looked through it immediately.

After looking through it briefly, Lin Feng pondered. There is basically no problem with the process route, which is quite reasonable. So where is the problem and why is there stress deformation?

After thinking about it, Lin Feng suggested, "Mr. Wang, let's go to the manufacturing site and see how it goes."

Wuyou stood up and said, "Let's go, then we'll go there now, just as the third-stage compressor wheel is ready for finishing machining."

The two left the office building side by side, and continued to chat while walking, heading towards workshop 406. The distance was not too far, and they arrived at the entrance of workshop 406 in a few minutes.

Lin Feng felt a little bit emotional. This was the place where he fought. He has been working here for more than three years. After leaving, he never came back for at least two or three years.

As if feeling the change in Lin Feng's expression, Wang Tianfang said, "Boss Lin, you have been away from here for a few years. When you come back again, you should meet many familiar faces. Workshop 406 has also changed a lot in the past two or three years. We imported A lot of CNC equipment."

When Lin Feng left, most of the large 406 workshops were still equipped with ordinary equipment, the CNC equipment was still in the single digits, and the CNC programming had just started, and the CNC programming of the entire workshop was basically taught by himself.

go, go in!
After leaving for two or three years, Lin Feng is now returning to his hometown. He used to be just an ordinary craftsman here, but now he is the boss of a well-known domestic aviation company. It has more than 2 people and the company's revenue exceeds [-] billion. It can design, develop, Produce the world's top-level aero engines, military helicopters, and even stealth strategic bombers.

Wang Tianfang accompanied Lin Feng into workshop 406. This was the first time Lin Feng entered this workshop after several years.

As soon as he came in, he ran into an acquaintance. Seeing this familiar face, Lin Feng thought in his heart that he hadn't seen him for several years.

The other party also saw Lin Feng, and was taken aback for a moment, but after realizing it, he was full of surprise!

………………

[-] words are sent, and I ask everyone for monthly tickets, recommendation tickets and other supports! ! !

(End of this chapter)