Take Off My Aviation Era

"Take off my aviation age novel ( to find the latest chapter!

You must know that Mu Guangying is not a novice, but a senior aviation expert.

Because of this, even though the conversation between Zhuang Jianye and Peng Chuan was clouded and misty and could not be understood by others, it was very transparent here in Mou Guangying.

In addition, Peng Chuan clearly expressed the self-confidence attitude of "Tengfei Group has better than this".

Mou Guangying knows that no matter how beautiful his head is, Ascendas Group’s accomplishments in the machining of large aircraft components far exceed those of the fledgling South Korean Daewoo Group, and even Japan, which is a contract manufacturer for Boeing in the United States, can’t match it. A giant like a guest can compete with one.

Because Ascendas Group is very likely to master the integrated machining technology of large wing skins.

Focus!

The first is large, how big is large?

According to European and American standards, a wing of 10 meters or more is considered to be large, while a Boeing 747 or a C5 transport aircraft that is nearly 20 meters in size is considered to be super large.

However, whether it is large or super large, if you want to process the whole piece in an integrated manner, the equipment required is naturally larger.

At least the inner working surface should be no less than 25 meters, and the width should not be less than 6 meters. With this alone, the operating area of ​​the light working surface can reach 150 square meters.

If you include the peripheral partitions, the load-bearing layer of the machine tool, the slideway, the running system, etc., the entire equipment will be a giant with an area of ​​more than 300 square meters.

However, this is not the key, because the focus is on another core, which is integrated processing.

What is integration? To put it bluntly is to put a ten-meter-long aluminum alloy wing skin blank on the processing equipment. After inputting the instructions according to the program, nothing is required. The equipment itself will step by step three tons. The heavy, high-strength aviation aluminum alloy is processed into a whole skin with a thickness of only 0.5mm at the thinnest part and no more than 3mm at the thickest, and with various complex and subtle reinforcing ribs.

This requires the processing equipment not only to be large, but also the rotating shaft and cutter head in the front section of the processing to be extremely flexible, at least five-axis, otherwise it will not be able to handle such a complex processing process.

Not only that, but also need to be flexible and changeable in the fixture, because the blank of the wing skin is cut from a three-ton aluminum bump into a thin skin that weighs only hundreds of kilograms. In the process, it needs to be repeatedly cut and continuously polished. It is required that the fixture cannot be fixed and fixed, but needs to be adjusted appropriately according to the angle of the knife and the size of the knife.

In other words, traditional fixed fixtures are simply not up to the task, and flexible and flexible fixtures are needed to complete such operations.

Flexible fixtures are a new technology that has just emerged in the aviation industry in recent years. At present, only the United States has gained popularity, while Europeans are still working hard. Has Ascendas Group also made breakthroughs in this area?

For a while, Mu Guangying only felt that the world was spinning around. Was it still a poor toss that he considered to be just a passing hotel for their IDF fighter R&D team to stay temporarily?

Isn't this strong?

It’s because Zhuang Jianye and Peng Chuan didn’t know Mu Guangying’s ideas, otherwise the two promised to be amused by laughter, and then waved their hands at Mu Guangying nonchalantly, teasing: "A set of craftsmanship that will be eliminated in two years is still Is it strong? Then you have never seen what truly powerful is."

Yes, in the eyes of Mou Guangying, this kind of integrated aviation aluminum alloy skin processing technology has been regarded as the top level of aircraft machining in the world today.

In fact it is true.

Due to the particularity of the wing, the structural strength of the outer surface must be particularly high, and at the same time, the overall weight must not be too large, otherwise it will affect the load and flight performance of the entire aircraft.

Because of this, since the 1970s, the outer surface of the aircraft wing has gradually adopted the integrated machining technology of large blanks, combined with chemical milling and EDM technology, so that the aircraft wing, especially the large aircraft While the structural strength of the wing is improved, the weight is further reduced.

The result is a leap-forward improvement in aircraft performance.

After all, this integrated processing avoids the structural imbalance and overweight problems caused by the splicing of the surface of the wing skin. This is why Zhuang Jianye would sneer when he saw the 8-meter gantry milling machine. If the wing skin is processed by gantry milling, several sections of the wing skin must be connected by riveting the wing.

Not to mention, the rivets that connect the skin segments alone have to increase the weight by several kilograms.

The problem is that there is not only the upper surface of the wing skin, but also the lower surface, so the weight of the rivet has to increase the weight of the wing by nearly ten kilograms.

Two wings are twenty kilograms.

In addition, internal structural parts such as large structural beams, truss beams, body frames, fuel tanks, etc. cannot be integrated. If rivets are used for splicing, the overall mass of rivets will be hundreds of kilograms more.

You must know that an airplane, especially a large passenger aircraft, may have an irreversible impact on the quality of flight by one gram of weight, let alone hundreds of kilograms.

That's why Zhuang Jianye looked at Daewoo's equipment and shook his head, because they killed Daewoo. Otherwise, even if Daewoo built a large plane, it would have to be rubbed on the ground by Boeing and Airbus.

There is no way, two generations behind in the production link, it is like using a spear to smash someone with an AK47. It's strange if you don't die.

Yes, you are right. The Daewoo machining workshop is still two generations behind the giants despite the advanced equipment.

At the same time, it is also the root cause of Zhuang Jianye and Peng Chuan laughing unscrupulously after learning the reason for Mu Guangying’s shock. The wing skin produced by the integrated aviation aluminum alloy skin processing technology is indeed the mainstream of today’s large aircraft wing manufacturing. , But it will soon be replaced.

Because of the breakthrough of a new generation of carbon fiber composite materials and the rapid development of new weaving technology, it will replace the extremely thin aluminum alloy skin of large aircraft wings in the near future and become the new main material for wings.

How long is this future?

The timetable given by the Materials Research Institute of Ascendas Group is that before 2000, Ascendas Group will build the first 15-meter-long special equipment for the production of wing composite materials.

By then, the overall proportion of composite materials for large aircraft produced by Ascendas Group will reach 35% to 48%, and it will further increase to 60% in the future.

A Daewoo who doesn't even understand the integration of processing ~www.readwn.com~ is still playing splicing; how can Boeing and Airbus that have begun to deepen the new technology of composite materials?

Think of it as a joke.

Fortunately, Mu Guangying still doesn't know how deep the water is, otherwise the little self-esteem on him will be trampled on by Zhuang Jianye and Peng Chuan.

"Oh, Mr. Mou, since you want to join the Ascendas Group, do you have to make a name?" When Mou Guangying was shocked, Peng Chuan suddenly said.

Mou Guangying was surprised, and Peng Chuan explained to him the flat management system of Ascendas Group. Mou Guangying immediately nodded when he heard the words, "No problem, I will go back and think about it. Uh... By the way, Mr. Peng, President Zhuang’s flower name is NB, what is your flower name?"

Peng Chuan twisted his messy hair, dandruff fell sternly, and proudly popped out two words: "Stallion!"

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