Take Off My Aviation Era

"The cost of composite materials used is low?"

Professor Ali Khan listened to Lin Guanghua's words, and the slightly muddy gray eyes under the square glasses squinted subconsciously. There is nothing else, just such a repetitive questioning has revealed the meaning of the expression without reservation. come out.

As for the members of the Pakistani military delegation, Rahman and Zarif, at this time, they all turned their attention to the people of the Ascendas Group, like a series of X-rays, wishing to see the hearts, liver, stomach and kidneys of Zhuang Jianye, Lin Guanghua and others clearly.

How can something such a tall composite material have low cost?

That thing is completely representative of the frontiers of technology. The future direction of technological development, if it is not expensive, how can it be worthy of high-end, and there are actually low-cost, are you Ascendas Group bullying our Pakistani incompetence, where are you fooling?

Lin Guanghua had already guessed the reaction of Professor Ali Khan and others. He turned his head and looked at Zhuang Jianye next to him. Zhuang Jianye nodded. Lin Guanghua showed a knowing smile and immediately shouted at a workshop staff not far away. : "Xiao Gao, bring two plates over here."

"Ok!"

Xiao Gao saw that Mr. Lin called him, and he quickly responded, and then took two keyboard-sized metal plates from his processing table.

Lin Guanghua received it, cushioned it and handed it to Professor Ali Khan: "Professor, look at this."

Professor Ali Khan took the plate in his hand. The plate was very thin, about 1.5mm thick, and exuding a metallic luster. It was light in his hand, but it looked nothing special.

"This seems to be an ordinary aluminum alloy material. As for the specifics, I can't see it right now, but from my experience, it should be aluminum alloy." After watching carefully for a long time, Professor Ali Khan finally gave a conclusion. .

Lin Guanghua smiled, without saying a word, handed the other piece in his hand to Professor Ali Khan again: "Professor, you are looking at this."

Professor Ali Khan received another piece of metal of the same size in his hand, and his wrinkled face shook suddenly. He immediately raised his head and looked at Lin Guanghua with an incredible face: "How is this... possible?"

It's no wonder that Professor Ali Khan would be like this, because the moment he started with the second plate, he clearly felt that the weight of the two plates of the same size was obviously different, and the first one was much lighter than the second.

Obviously, he judged that the first plate of ordinary aluminum alloy was a specially processed lightweight aviation metal material, and the second plate was a real aluminum alloy.

As a veteran who has worked in aviation technology for half of his life in giants such as Lockheed, Airbus, and Boeing, other metal materials may not be familiar, but aluminum alloy, the most widely used material in aviation manufacturing plants, can’t do it. It would be shameful to be clear.

The result was good. I was hunting wild geese all day long, but the geese pecked their eyes.

"The second piece is an aluminum-lithium alloy, and the first piece is our newly developed super-hybrid composite material. It is not only 15% lighter than the general aluminum-lithium alloy, but also compared with the aluminum-lithium alloy in terms of material strength and fatigue resistance. 2% to 5% higher."

Just when Professor Ali Khan fell into the shadow of misjudgment and could not extricate himself, Lin Guanghua's words came slowly and penetrated his ears, but Professor Ali Khan did not fully recover from this until Lin Guanghua's next sentence , Immediately made Professor Ali Khan as if he had been baptized by the **** oil, and began to tremble inexplicably, so that his eyes almost protruded.

"Of course, the most important thing is the cost of this material. On average, it is about two-thirds of the aluminum-lithium alloy, which is basically the same as the cost of a slightly better ordinary aluminum alloy."

"How can it be?"

Now Professor Ali Khan was not inconceivable because of a wrong judgment. He was truly shocked.

Professor Ali Khan has not seen composite materials, but has personally used them. He is very clear about the complexity of the process and the difficulty of preparation. If not, the cost of composite materials would not be staggeringly high.

However, the so-called super-hybrid composite material in front of us, although its performance is not much better than the commonly used high-end aviation aluminum alloy, is at most lighter.

But the core of the aviation manufacturing field is the weight reduction of aircraft. 1% lighter is a major improvement, not to mention the super-hybrid composite material is also 15% lighter, not to mention disruptive, it also creates a new field.

It is necessary to know that the weight reduction effect of aircraft using this material will be very obvious, and the improvement of efficiency is even more obvious.

How can the cost of such high-quality materials reach sky-high prices, and the result is similar to the slightly better aluminum alloy.

Professor Ali Khan only feels that the aviation materials science system that has been mixed in Europe and the United States for half a lifetime has collapsed. There is a feeling of dreaming, and I don’t know what year of brain twitching tonight.

"Mr. Lin, you are not kidding me. It is 15% lighter than aluminum-lithium alloy, and the material properties are 2% to 5% higher, but the cost is only two-thirds of the latter. How does this sound and dream? same."

I don’t know how long it took. Professor Ali Khan finally reacted. Although a dark face was still trembling, he did not say some perfunctory or prevarication because of face or something, but expressed his true feelings. .

Lin Guanghua nodded: "To be honest, during our development of Costin A-type, when we got this super-hybrid composite material, I felt the same as you. I never thought that a composite material would be so cheap. But this really happened. It took me a long time to get used to it."

"Then... how did you do it?" Professor Ali Khan asked curiously.

"It's very simple. We just replaced the aramid fiber in the aramid-reinforced aluminum-based composite material with a lower-cost glass fiber, and then we have this kind of material that has the same characteristics as the aluminum alloy material, but is lighter in quality. Low-cost composite materials ~www.readwn.com~ When Lin Guanghua said this, there was a big smile on his face, but he was full of emotion in his heart.

In fact, this kind of super-hybrid composite material is one of the many fiber-reinforced metal matrix composite materials in the Ascendas Aviation Technology R&D Center. It has been experimented many years ago, but this low-cost material was not mature at the time, and it can only be said to be aluminum. An alternative variant of alloy.

Until Zhuang Jianye found out that the cost was not adequate when reviewing the Costin project, if the unit price of mass production would exceed Yun 8, who would buy it at that time.

So ordered to flip the family property and use all available means to lower the cost. At this time, Ascendas Aviation Technology R&D Center turned to this glass fiber reinforced aluminum-based composite material from its own technical accumulation.

Then using the latest metal matrix composite material production technology, the weight of the material is greatly reduced, and the cost is well controlled.

However, Lin Guanghua can't tell Professor Ali Khan about these details, but Professor Ali Khan opened his mouth in surprise: "Oh my God, glass fiber and aluminum, oh, it's really hard to imagine. These two materials are combined. Together there will be such an amazing effect!"