Take Off My Aviation Era

　　 "We generally don't call it AFP, but NB series automatic carbon fiber placement machine."

　　 Zhuang Jianye smiled modestly, with a gentle demeanor, he didn't have the same sense of sight that he would fly to the sky with a little east wind, but when he heard this, it was like a thunder in the ears of Lao Wei.

　　Automatic carbon fiber thread laying machine, called AutomatedFiber in English; abbreviated as AFP, which is the abbreviation of automatic laying machine.

　　 Its function is mainly used for laying and shaping carbon fiber composite materials of aircrafts, rockets, missiles and other aircraft or aircraft with complex curved surfaces.

　　 belongs to the most high-end core equipment in the aerospace manufacturing field.

　　 Because of this, even though carbon fiber composite materials were born for nearly 40 years, countries have successively applied them to various aerospace products.

　　 There are not many countries that can really apply this new material well.

　　 This is like Mahjong that everyone can play, but it is true that every hand that can be won is very rare among the masters. There is also a difference between high and low, strong and weak.

　　The practical application of carbon fiber composite materials and the manufacture of molded products are the same.

The lowest level is to use the prefabricated carbon fiber composite fabric produced by the carbon fiber composite material production plant, using epoxy resin as the adhesive, and according to the shape of the mold, it is manually applied layer by layer, compacted, and then sent to the hot pressing Pouring stereotypes.

　　The second-level one is a carbon fiber composite automatic winding machine, which was born in the 1970s and is mainly used for the manufacture of long-range ballistic missile bodies to reduce the overall structural weight of the missile and increase the effective load.

　　 The American C-4 submarine-launched ballistic missiles, D-5 submarine-launched ballistic missiles, the French M-45 and the M-51 submarine-launched ballistic missiles under development all use the carbon fiber automatic winding process to produce the projectiles.

However, although the carbon fiber composite automatic winding machine can produce regular circular parts such as the projectile body, the flat parts such as the liner in the monomer, the wing, the tail, and the rudder on the aircraft cannot be manufactured. It also requires manual carbon fiber fabric. Laying layer by layer.

　　 Not to mention how expensive the labor cost is, and the labor error rate is not mentioned, it is said that the scrap rate of the extra scrap of the carbon fiber fabric when it is laid is cut off and scrapped is a not small figure.

　　 Since the 1980s, Europe and the United States have adopted automatic carbon fiber composite material belt layer auxiliary machine tools, abbreviated as automatic auxiliary belt machine, and English abbreviation ATL, as automatic processing equipment for aerospace flat panels to replace manual production.

　　 The core of the equipment is the front-end machine tool auxiliary leader. It is a professional belt laying equipment that integrates belt material transportation, heating, pressing, cutting, and re-feeding.

　　 It is precisely with such equipment that all the laying, bonding, shearing, pressing, forming and other processes that previously required manual participation, except for hot-pressing and grouting reinforcement, can be completed.

　　 Not only that, because of the automation of the automatic auxiliary belt machine, the efficiency of processing carbon fiber parts with this type of equipment has doubled.

　　Because in general, the productivity of manual laying is 0.5~1.2kg\hour on average, and the productivity of 20kg\hour can be achieved by using automatic auxiliary belt machine, which is 20 times that of labor.

　　 As for accuracy, not to mention, the most skilled laying workers can only achieve an error of plus or minus 3 mm, while the automatic auxiliary belt machine can achieve an error of plus or minus 1.3 mm.

　　The same is true for consumables. Manual laying is an average of 35% consumables, while the loss of automatic auxiliary belt machines is only 5%. This is definitely worthwhile for carbon fiber composite materials with an average price of US$280/kg.

It is precisely because of the various benefits that the automatic auxiliary belt machine has quickly become the darling of European and American aviation giants once it comes out, and it is quickly applied to actual production, such as the vertical tail of Airbus A330, the wings and rudders on both sides of the American Boeing 777. , Pompey of F-22 and F-18 fighter jets, etc.

However, although the automatic auxiliary belt machine is good, it is okay to be a flat part, but the complicated curved surface cannot be played, and there are many O-shaped parts, C-shaped parts, radome and nose on aircraft and spacecraft. Ensure a streamlined complex surface.

　　 So the European and American engineers combined the automatic winding machine with the automatic auxiliary belt machine, and used the multi-axis linkage and numerical control foundation in the mechanical field to create a more advanced and most adaptable automatic silk laying machine so far.

　　To solve the problem of laying and processing carbon fiber composite materials with complex curved structures on aircraft and spacecraft.

In this regard, Boeing of the United States is at the forefront. In the mid-1980s, it developed a practically applicable automatic wire laying machine. By the end of the 1980s, Boeing transferred the technology to the 3I company in the United States for commercialization. So far, the automatic laying machine, the most advanced processing equipment for carbon fiber composite materials, has been monopolized by the United States.

So starting in the 1990s, aerospace giants such as Boeing, Lockheed Martin, Northrop Grumman, etc. can unscrupulously increase the amount of carbon fiber composite materials used in aircraft, without considering whether they cannot be processed due to deconstruction of the shape, because the Americans are already here. With a breakthrough in the manufacturing process, you can do whatever you want.

　　 What Boeing 777, Boeing 787, F-22, B-2 want to create.

In contrast, Europe is not so arbitrary. They only stay at the stage of automatic auxiliary belt machines, especially Spain and Italy. These two countries have even better technology and experience in gantry automatic auxiliary belt machines than the United States. It is a pity that they were thrown off by the United States on the automatic laying machine. Therefore, they were always beaten by the United States in aviation manufacturing.

Russia, including the Soviet Union before it was disintegrated, is not as good as Europe and the United States in terms of carbon fiber composite materials. It hasn't talked about the professional processing equipment. Production.

The domestic situation is similar to that of Russia, with only a small number of automatic winding machines, which can realize the automatic production of long-range missile bodies. Almost 100% of the other places where carbon fiber composite materials are needed are produced manually, which is not only inefficient, but also has a good product rate. Not to mention that the overall cost is still high ~ www.readwn.com ~ More importantly, the production cycle is long.

Needless to say, it takes only 2 operators and 3 working days to produce a F-22 composite vertical tail in the United States. Domestic production of the Su-27 horizontal tail, which is several times smaller than the vertical tail, requires four 8-person teams. It can be done after a week's shift.

　　 2 operators, 3 working days vs. 4 8-person teams, three shifts for one week

　　Which is better and worse at a glance.

　　Because of this huge advantage, the international aerospace industry refers to the automatic wire laying machine as aerospace hegemony, because once you have such equipment, you can have unobservable technical advantages in the aerospace manufacturing field.

　　 And now only the United States has such hegemony. In other words, only the United States wins once at the mahjong table, and no one else has the chance to win.

As an expert in the aerospace application and production research of the Academy of Military Sciences, Wei thought that he would never have this kind of aerospace hegemony in his life. As a result, after hearing Zhuang Jianye's words, he felt keenly that he seemed to be able to play the mahjong table in his own country. Shang Xiaohu had a few, but he was a little uncertain, so he tremblingly asked carefully: "Xiao Zhuang, you really made an automatic silk laying machine?"

　　 Zhuang Jianye nodded sincerely: "Yes, why don't all the chiefs go and see?"

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