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Chapter 1055 Friction stir welding

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    "this¡­¡­"

    Hearing what Zhuang Jianye said, whether it was Abdullah or Mahmoud, the excitement that they had in the laser precision processing workshop more than ten minutes ago, even if their private life was exposed, they couldn't wait to come over and see what happened, disappeared in an instant.

    It felt as if I was finally going to see the goddess I had loved for a long time. After all, my rational brain could not compete with my cerebellum filled with sperm. I pushed the door eagerly and went in, only to find that the goddess was indeed a goddess, but this goddess was already in her seventies and eighty years old and had long since passed away.  The brightness of that year.

    So the sperm receded, and the smart IQ once again occupied the high ground, so everyone's eyes became a little resentful. I have taken off my pants, just show me this?

    It is still invisible and has a bomb cabin. It is just a plate welding equipment. How can it be invisible and how can it have a bomb cabin!

    As for Aziz and other industry insiders, the corners of their mouths twitched, and in their uncertain eyes, an undisguised emotion called "being fooled" burst out.

    In fact, not only these outsiders, but also the head of the headquarters who came with him were secretly holding their foreheads, covered with black lines. He originally thought that Zhuang Jianye was bringing Abdullah and others to see the nb-2550dl automatic linear friction welding machine.  Well, that is the top welding equipment in the world today.

    The overall performance is equivalent to that of the U.S. Pratt & Whitney fully automatic linear friction welding machine. It is thanks to this automatic linear friction welding machine that Pratt & Whitney boldly equipped the f-119 high-thrust turbofan engine in the f-22 combat  It adopts fully integrated blisk technology.

    The key point is the whole blisk technology, not the whole blisk technology.

    In other words, the F-119 low-pressure and high-pressure compressors, with more than ten stages in total, completely use integral blisk technology, instead of like other aircraft engine manufacturers, where the low-pressure compressor uses integral blisk technology and the high-pressure compressor uses traditional mortise and tenon connections.  process; or the low-pressure machine uses traditional technology, and the high-pressure machine uses integral blisk technology.

    This way the risk can be minimized.

    But Pratt & Whitney does not do this. Both high and low pressures use integral blisk technology. In addition to Pratt & Whitney's confidence in materials, it is also very confident in its own manufacturing process.

    Because of this, while the diameter of the F-119 high-thrust turbofan engine is larger than that of the previous generation F-110 series engines, the number of spare parts is greatly reduced, and the total mass is also reduced by several percentage points. At the same time, the overhaul interval and use  The service life has been qualitatively improved, making it an engine that never breaks down.

    Based on this, the headquarters and the next-generation combat aircraft development team have listed Ascendas Group¡¯s nb-2550dl automatic linear friction welding machine and nb-6600dl ultra-precision laser drilling machine as key core manufacturing equipment for the next-generation high-thrust engine.

    Now that the nb-6600dl ultra-precision laser hole making machine has been shown to guests from the United Arab Emirates and Algeria, it doesn¡¯t matter if the head of the headquarters wants to take a look at the nb-2550dl automatic linear friction welding machine. Anyway, they are not for sale. For the people of the Middle East and North Africa,  You can't get pregnant even if you have urine, but it's better than two wealthy people arguing over a dozen NB-66s and making your brain hurt.

    What's more, Zhuang Jianye didn't have any good intentions in leading them to see the welding equipment. You must know that Tengfei Group has upgraded several rounds in recent years, and the most eliminated ones are the welding equipment. There are three warehouses covering an area of ??4,000 square meters, and they are too lazy to repair.  Someone just happened to come over to take over the repair, so I quickly packed it up and processed it.

    So the head of the headquarters did not stop him at that time, but let nature take its course and let Zhuang Jianye mess around. Unexpectedly, Zhuang Jianye led people to see not the nb-2550dl automatic linear friction welding machine that could rival the United States, but the  It is another nb-2330dl automatic welding machine.

    This makes the head of the headquarters very puzzled. The UAE and Algeria agreed to develop the aviation industry, but you, Zhuang Jianye, took them to see the aerospace manufacturing equipment.

    That¡¯s all. I kept saying before that without the nb-2330dl automatic welding machine, there would be no stealth. With it, there would be a bomb bay for a stealth fighter.

    As a layman, Zhuang Jianye can just fool you. The problem is that Abdullah and Mahmoud are not fighting alone this time, but with two groups of people, two very professional teams of aviation experts. How dare you fool them?  ?  Are the welding equipment in those three warehouses really prepared to be ruined for the rest of their lives?

    No wonder Abdullah, the head of the headquarters and others are like this. It turns out that the nb-2330dl automatic welding machine that Zhuang Jianye took people to see is none other than a new welding process that has just emerged in recent years - friction stir welding.

    It was invented by the British Welding Institute in 1991, and other countries immediately followed suit.

    Evans and Owen, who were in Europe at the time, immediately purchased the relevant patents and gave them to Ascendas Group. As a result, Ascendas Group became one of the few aerospace manufacturers in the world that mastered core technologies in this field.

    It¡¯s just this new welding process.Although it has many advantages and huge potential, it is a brand-new thing after all. The specific application boundaries and breadth are being explored by major giants and research units in the world, including Ascendas Group, so the current scope of application is not large.  Limited to the aerospace field.

    For example, the special aluminum alloy fuel storage tank inside the long-range launch vehicle is welded by friction stir welding, and the petal seal of the fuel storage tank is also welded by friction stir welding.

    The Americans are the most widely used in this regard. Almost all the fuel tanks of their new Delta heavy-lift launch vehicle use friction stir welding as a connection method. Even the fuel tanks on the space shuttle also use friction stir welding.

    Domestically, thanks to Ascendas Group¡¯s accumulation in this area, friction stir welding is also widely used, especially in the aerospace field. Ascendas Group is responsible for the production of first-stage liquids for the Chang 3, Chang 4, and Chang 5 launch vehicles.  All fuel storage tanks currently use friction stir welding, and secondary fuel tanks are gradually using friction stir welding to replace the previous gas shielded brazing.

    The civilian sector is lagging behind slightly. In the military sector, the DF4 medium-term maintenance medium-range launch vehicle produced by Ascendas Group and the fuel storage tanks of the DF5 long-range launch vehicle all use friction stir welding.

    This will increase the production progress of the two launch vehicles from 8 and 4 per year to 14 and 8.

    This is the result of the headquarters not operating at full capacity due to funding issues. If it were operating at full capacity, regardless of other aspects, but as far as the fuel storage tank is concerned, Ascendas Group would be able to achieve what it was like in the former Soviet Union in the 1950s and 1960s.  A famous leader once said that producing rocket fuel storage tanks is as easy as producing sausages.

    There is no way. The previous welding process, using all the strength, the efficiency of welding the launch vehicle fuel storage tank is only 5 millimeters per minute, while the friction stir welding is 12 meters per minute. 12 meters is equivalent to 12000 millimeters.  This can no longer be described as an advantage, it is simply a defeat.

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