Add Bookmark | Recommend this book | Back to the book page | My bookshelf | Mobile Reading

Free Web Novel,Novel online - All in hlnovel.com -> Romance -> take off my aviation age

Chapter 1017 Aerospace Hegemony

Previous page        Return to Catalog        Next page

    ¡°We generally don¡¯t call it afp, but call it nb series automatic carbon fiber filament placement machine tools.¡±

    Zhuang Jianye had a humble smile and a gentle demeanor. He didn't have the sense of seeing someone floating up to the sky with the slightest east wind in the past. However, when hearing these words in Lao Wei's ears, it was like a thunderbolt.

    Automatic carbon fiber filament placement machine tool is called automatedfiberplacement in English and abbreviated as afp, which is the abbreviation of automatic filament laying machine.

    Its function is mainly used for the laying and molding of carbon fiber composite materials on aircraft, rockets, missiles and other aircraft or complex curved surfaces of aircraft.

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

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

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

    This is just like everyone can play mahjong, but there are very few masters who can truly win every tile. There are also differences in levels, strengths and weaknesses.

    The same is true for the practical application of carbon fiber composite materials and the manufacturing of molded products.

    The lowest level is to use prefabricated carbon fiber composite fabrics produced by carbon fiber composite material manufacturers. Epoxy resin is used as the adhesive. According to the shape of the mold, it is manually applied and compacted layer by layer, and then sent to hot pressing.  Fill and shape.

    The next level is the 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 payload.

    The U.S. C-4 submarine-launched ballistic missile, the D-5 submarine-launched ballistic missile, the French M-45 and the M-51 submarine-launched ballistic missile under development all use automatic carbon fiber winding processes to produce the projectile body.

    However, although the carbon fiber composite automatic winding machine can produce regular circular parts such as missile bodies, it cannot produce flat parts such as linings in the unit, wings, tails, and rudders on the aircraft, and requires manual work with carbon fiber fabrics.  Layer by layer.

    Don't talk about how expensive the labor cost is, and not mentioning the manual error rate, it is said that the amount of corners that carbon fiber fabrics are cut when laying are cut off.

    So since the 1980s, Europe and the United States have adopted automatic carbon fiber composite belt layer auxiliary machine tools, referred to as automatic auxiliary belt machines, and the English abbreviation ATL, as automatic processing equipment for aerospace flat sheets to replace manual production.

    The core of this equipment is the front-end machine tool auxiliary head. It is a professional belt laying equipment that integrates belt transportation, heating, pressure application, shearing and re-feeding.

    It is precisely with such equipment that, in addition to hot-pressure pouring and reinforcement, all processes such as laying, adhesion, shearing, compaction, and molding that previously required manual participation can be completed.

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

    Because generally speaking, the average manual laying productivity is 0.5~1.2 kg per hour, and the automatic auxiliary belt machine can achieve a productivity of 20 kg per hour, which is 20 times that of manual laying.

    As for the 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 consumes an average of 35% of the consumables, while the loss of the automatic auxiliary belt machine is only 5%. This is definitely a good deal for carbon fiber composite materials with an average price of US$280 per kilogram.

    Due to its various benefits, the automatic auxiliary belt machine quickly became the favorite of European and American aviation giants as soon as it came out, and was quickly applied to actual production, such as the vertical tail of Airbus A330, the wings and rudders of the American Boeing 777  , f-22 and f-18 fighter jets, etc.

    However, although the automatic auxiliary belt machine is good, it can be used to make flat parts, but complex curved surfaces cannot be used, and there are many O-shaped parts, C-shaped parts, radomes and noses required on aircraft and spacecrafts.  Ensure streamlined complex surfaces.

    So European and American engineers combined the automatic winding machine with the automatic auxiliary belt machine, using the multi-axis linkage and CNC foundation in the mechanical field to create a more advanced automatic laying machine that is also the most adaptable to date.

    This is used to solve the laying and processing of carbon fiber composite materials with complex curved surface structures on aircraft and spacecraft.

    In this regard, Boeing in the United States was at the forefront. In the mid-1980s, it developed an automatic wire laying machine that could be used in practical applications. By the end of the 1980s, Boeing transferred the technology to 3i Company in the United States to commercialize it.  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, aviation companies such as Boeing, Lockheed Martin, and Northrop Grumman??Aerospace giants can unscrupulously increase the amount of carbon fiber composite materials used in aircraft, without considering whether it will be impossible to process due to deconstructed shapes, because the Americans have made breakthroughs in manufacturing processes in this area, and they can do whatever they want.

    ?????????What Boeing 777, Boeing 787, f-22, b-2 want to create?

    In contrast, Europe is not so free-wheeling. 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-type automatic auxiliary belt machines than the United States.  It is a pity that they are left behind by the United States in automatic laying machines. Therefore, they are always beaten by the United States in aviation manufacturing.

    Russia, including the Soviet Union before its disintegration, is not as good as Europe and the United States in terms of carbon fiber composite materials, let alone professional processing equipment. It has been thousands of miles away. Currently, it only has automatic winding machines for long-range missiles.  of production.

    The situation in China is similar to that in Russia. There are only a small number of automatic winding machines that can realize the automated production of long-range missile bodies. The rest of the places where carbon fiber composite materials are needed are almost 100% produced manually. Not only is the efficiency low, but the yield rate is also low.  Not to mention high, the overall cost remains high.

    What¡¯s more important is the long production cycle.

    Not to mention anything else, it only takes two operators and three working days to produce a pair of F-22's composite vertical fins in the United States, but domestic production of the Su-27 horizontal tail, which is several times smaller than the vertical fins, requires four 8-person teams and three  It took a week of work to make it.

    2 operators for 3 working days vs four 8-person teams for 3 shifts for a week

    It¡¯s clear which one is better and which one is worse.

    Precisely because of such huge advantages, the international aerospace industry calls automatic wire laying machines the aerospace hegemony, because once you have such equipment, you will have unparalleled technical advantages in the aerospace manufacturing field.

    Nowadays, only the United States has such hegemony. In other words, only the United States can win every time on the mahjong table, and others have no chance to win.

    As an expert at the Academy of Military Sciences who specializes in aerospace application production research, Lao Wei thought he would never have a chance to have such aerospace hegemony in his life. However, after hearing what Zhuang Jianye said, Lao Wei felt keenly that his own country could also compete in the mahjong table.  Xiaohu took a few steps, but he was a little unsure, so he asked cautiously: "Xiaozhuang, have you really made an automatic laying machine?"

    Zhuang Jianye nodded sincerely: "Yes, how about all the leaders go and take a look?"

    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
Didn't finish reading? Add this book to your favoritesI'm a member and bookmarked this chapterCopy the address of this book and recommend it to your friends for pointsChapter error? Click here to report