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Chapter 989 Two generations ahead

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

    Because of this, although the conversation between Zhuang Jianye and Peng Chuan was shrouded in fog and could not be understood by others, it was very clear to Mou Guangying.

    Coupled with the confident attitude that Peng Chuan clearly expressed later that "Tengfei Group has something better than this".

    No matter how funny Mu Guangying is, he still knows that Ascendas Group's achievements in the field of machining of large aircraft parts far exceed those of the fledgling Daewoo Group of South Korea. Even Japan, which does OEM work for the American Boeing, cannot come close to it. Only the American Boeing and the European Air Force  Only a giant like Ke can compete with it.

    Because Tengfei Group is very likely to have mastered the integrated machining technology of large-scale wing skin.

    Focus on the key points!

    First, it¡¯s large. How big is considered large?

    According to European and American standards, a wing of more than 10 meters is classified as large. If it is a large aircraft like the Boeing 747 or a C5 transport aircraft of nearly 20 meters, it is classified as super large.

    However, whether it is large or super large, if you want to process it in one piece, the equipment required will naturally be larger.

    At the very least, the internal working surface must be no less than 25 meters, and the width must not be less than 6 meters. With this alone, the operating area of ??the working surface alone reaches 150 square meters.

    If we include the peripheral partitions, the load-bearing layer of the machine tool, the slideway, the operating system and other supporting components, the entire equipment will be a behemoth covering 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, it means placing a ten-meter-long aluminum alloy wing skin blank on the processing equipment. After inputting the instructions according to the program, you don¡¯t have to worry about anything. The equipment will process the three-tonne wing skin step by step.  The heavy, high-strength aviation aluminum alloy is processed into a skin with a thickness of only 0.5mm at its thinnest and no more than 3mm at its thickest. It is also equipped with various complex and subtle reinforcement ribs to create a very strong skin.

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

    Not only that, the fixture also needs to be flexible, because the blank of the wing skin is cut from a three-ton aluminum lump into a thin skin weighing only a few hundred kilograms. During the process, it needs to be repeatedly cut and polished. This is  It is required that the fixture cannot be fixed rigidly, but needs to be appropriately adjusted according to the angle of the knife and the size of the knife.

    In other words, traditional fixed clamps are simply not competent, and flexible flexible clamps are needed to complete such operations.

    ??And flexible clamps are a new technology that has just emerged in the aviation industry in recent years. Currently, only the United States has gained popularity, and Europeans are still working hard. Has Ascendas Group also made a breakthrough in this regard?

    For a moment, Mou Guangying just felt like the world was spinning. Did he still think that this was a poor thing, worthy only of being a passing hotel where their idf fighter research and development team temporarily stayed?

    Isn¡¯t this powerful a bit limitless?

    Fortunately, Zhuang Jianye and Peng Chuan didn't know what Mou Guangying was thinking, otherwise they would have been amused and laughed. Then they waved their hands at Mou Guangying nonchalantly and said teasingly: "A technology that will be eliminated in two years is still  Powerful? Then you have never seen what true power is."

    Yes, in Mou Guangying¡¯s eyes, this aviation aluminum alloy integrated skin processing technology is already considered the top level in aircraft machining in the world today.

    ??In fact, this is indeed the case.

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

    Because of this, since the 1970s, the outer surface skin of aircraft wings has gradually adopted large-scale blank integrated machining technology, coupled with chemical milling and EDM processing technology, making aircraft wings, especially large aircraft,  While the structural strength of the wing is increased, the weight is further reduced.

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

    After all, this kind of integrated processing avoids the structural imbalance and overweight problems caused by the previous wing skin surface splicing. This is why Zhuang Jianye sneered when he saw the 8-meter gantry mill, because if South Korea uses such a small  If the wing skin is processed by gantry milling, several sections of wing skin must be connected by riveting the wing.

    ???????????????????????????????????????????????¡­

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

    ? Two wings are 20 kilograms.

      In addition, internal structural parts such as large structural beams, truss beams, body frames, fuel tanks, etc. cannot be processed in an integrated manner. They are spliced ??with rivets. The overall mass of the rivets alone will be hundreds of kilograms more.

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

    This is why Zhuang Jianye shook his head when he looked at Daewoo's equipment. Fortunately, they killed Daewoo. Otherwise, even if Daewoo made a large aircraft, it would still be pressed to the ground by Boeing and Airbus.

    There is no way. It is two generations behind in the production process. It is like using a spear to fight against someone's AK47. It would be weird if it doesn't die.

    Yes, you read that right. Although the entire set of equipment in Daewoo¡¯s machining workshop is advanced, it is still two generations behind the giants.

    At the same time, it is also the reason why Zhuang Jianye and Peng Chuan would laugh unbridled if they knew the reason for Mou Guangying's shock. The wing skin produced by the aviation aluminum alloy integrated skin processing technology is indeed the mainstream of large aircraft wing manufacturing today.  , but will soon be replaced.

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

    How long will this future last?

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

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

    How can Daewoo, which doesn¡¯t even understand integrated processing and is still playing with splicing, beat Boeing and Airbus, which have begun to delve into new composite materials technologies?

    It¡¯s a joke when you think about it.

    Fortunately, Mou Guangying doesn't know how deep the water is here, otherwise the little self-esteem he has will be trampled to the ground by Zhuang Jianye and Peng Chuan.

    "Oh, Mr. Mou, since you want to join Ascendas Group, do you want to give it a fancy name?" Just 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's eyes lit up when he heard this, and he nodded: "No problem, I'll think about it when I go back, uh By the way, Mr. Peng,  Mr. Zhuang¡¯s nickname is nb, what is your nickname?¡±

    Peng Chuan combed his messy hair, and the dandruff fell, and he proudly said two words: "Stallion!"

    If you like Soar My Aviation Age, please collect it: Soar My Aviation Age is updated the fastest.  (Remember the website address: www.hlnovel.com
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