It's no wonder that this veteran expert in the energy sector is doing this, and the values on the detection equipment are exactly the same as the basic metallographic composition of the materials on both sides.

In other words, the components of two different materials are processed by the alternative NB-250 to form a magical integrated force.

If you don't see it with your own eyes, it's not an exaggeration to say that the two materials grow together.

So much so that all the data characteristics are not inferior to the high strength and high reliability of the material itself, and even after a little sanding, even the weld cannot be observed with inspection equipment, let alone the naked eye.

Such an integral blisk is taken out and said to be processed as a whole with five-axis and seven-axis linkage integration, which will definitely make people believe it 100%.

But the problem is that the five-axis and seven-axis linkage can only process a single alloy material, and the overall blade in front of me uses two different titanium materials.

One is a titanium alloy and the other is a carbon fiber-reinforced titanium matrix composite.

No matter how strong the five-axis and seven-axis linkage is, it is impossible to combine the two materials together to do integrated processing, more importantly, the five-axis and seven-axis linkage to do solid blades or hollow blades are OK, the center is hollow, and the wide-chord hollow blade with a closed appearance is really more than enough and the strength is insufficient.

In the future, the important development direction of aviation engine and gas turbine is the integral blisk and wide chord hollow blade, which can not only reduce the overall quality of aviation engine and gas turbine, but also improve the service life, and more importantly, the efficiency of compressors using these two technologies will be doubled, so that the air compression ratio will increase, improve the intake air flow, and promote the full combustion of fuel.

In this way, it is placed on the aviation engine to increase the thrust of the engine, and the application of the gas turbine can improve the thermal conversion efficiency of the gas turbine.

The problem is that it is very difficult to combine such two technologies to play the role of application, and if they are produced separately, they will not achieve the overall effect, and if they are operated as a whole, they can only use one material, and they cannot achieve local optimization.

What's more, there is a fatal processing problem in the end.

Therefore, GE, Rolls-Royce and Pratt & Whitney and other aviation engine giants generally take two technical routes, one is the integration route led by GE.

That is, the use of the United States super strong materials, metallurgical technology, the production of high-quality titanium alloy, and then the use of casting technology, made into a hollow integral compressor blank, and finally with a seven-axis linkage machine tool for integrated machining.

The other is a segmented combination of technology routes with Pratt & Whitney as the core, that is, the wide-chord hollow blades are produced separately from the rotor, and then the two are combined by vacuum diffusion welding or vacuum electron beam welding and other processes.

The two technical routes have their own advantages and disadvantages, but the cost of both is surprisingly high.

Needless to say, whether it is a five-axis or seven-axis linkage, it is money, and if you count the previous overall casting process, the cost of an integral blisk is almost equal to that of a previous jet.

Pratt & Whitney seems to be good, but the problem is that the welding process is extremely complex, either a vacuum environment is needed or expensive fillers must be used as a medium, the problem is that the yield of these things is not high, and the high scrap rate indirectly pushes up the cost.

Because of this, the giants of this kind of tall technology are basically used to buy only the right ones, regardless of the price, military products, after all, what the army pursues is leapfrog technological superiority, money or something is really nothing compared with winning the war, especially the US military, which has a deep pocket, has a tyrant-like obsession in this regard.

However, it is such a technical problem that even foreign aviation engine giants have a headache for, and Tengfei Group actually solved it with one equipment.

There is no use of tall five-axis or seven-axis linkage, nor complex welding equipment, but only with a similar friction welding method to achieve the best technical effect of the overall blisk, which is ...... It's really ......

"Our Tengfei Group has never been the kind of enterprise that will only follow the back of people's buttocks, and will not be complacent about holding other people's things like children building blocks, feeling that they are so big that they are boundless, what we do is always subversive, if there is no backbone, what are the four modernizations, and what is the country rich and the people strong. ”

Just when the experts in the energy sector were amazed by the subversive technological capabilities displayed by the NB-250 of Tengfei Group, Zhuang Jianye's words sounded again in the workshop.

Immediately, many experts were embarrassed, especially Cai Weiguo and others, who had ridiculed Zhuang Jianye and Tengfei Group before, and their faces were blue and red for a while.

Obviously, what Zhuang Jianye said was the Jinling Steam Turbine Plant that gave them benefits, which made Cai Weiguo, who originally wanted to take this opportunity to introduce the NB-250 back to the Jinling Steam Turbine Factory, without even the least opportunity to speak.

Because Zhuang Jianye's words are no longer to belittle the Jinling Steam Turbine Factory, but he does not take the Jinling Steam Turbine Factory in his eyes at all, that is to say, where is Zhuang Jianye, Jinling Steam Turbine Factory and other joint ventures that cooperate with foreign giants are not even qualified to be on an equal footing with him.

In this case, the leaders and experts of the energy sector who have benefited from the joint venture and run out of the Ascendas Group are not in a position to judge here.

In other words, he Zhuang Jianye came to receive you to save face, whether you come or not has nothing to do with Tengfei Group, you can lick the butt of foreign giants if you like to lick it, and Tengfei Group will not accompany you.

The people present are not stupid, if Zhuang Jianye can't hear the meaning of his words, then there is no need to sit in his current position, so including the leaders of the energy department, the entire research team is counted as one, and their faces are ugly.

Even the face of the head of the headquarters is not very good-looking, there is no way, this time the energy department came to investigate because he gave up his old face to invite someone to come, but Zhuang Jianye not only did not give face, but also said such a desperate thing, what does this bastard want to do?

"Comrade Zhuang Jianye, if I understand correctly, did you really criticize our department's approach just now?" Just when the head of the headquarters was thinking about how to help Zhuang Jianye recover, the leader of the energy department suddenly smiled and asked.

Zhuang Jianye also smiled: "Leader, look at what you said, how can I be qualified to criticize your department? I am a business, I am a guest, I am talking about business, we have become a wine and a happy talk, and if we don't succeed, we can make friends." ”

If the previous words make everyone think that Zhuang Jianye is a nerve, then the people present in this sentence think that this guy is crazy, which is tantamount to completely severing cooperation with the energy sector, self-isolation from the market, Zhuang Jianye really thinks that he has a subversive NB-250 equipment, can override the market, dare to compete with the energy department of large gas turbine users?

Are you kidding!