Monster Factory

Who has encountered such treatment?

The cold and sturdy people were surrounded by dozens of black and white brawny men. These mechanics and pilots were filled with expressions similar to those of netizens.

Exploring the object is naturally the main heart and music.

Chang Yule also stunned, and he has not encountered such a scene in his life.

“Why... why?” Two professors from Tianfu’s flight colleges hesitated, and the aerospace industry had contacted similar confidentiality agreements in the past. But when signing the agreement, it is clear that there are not dozens of strong men around.

"Because you are about to visit a production base that can change the future aviation pattern, because this is a business cooperation, we must put an end to the possibility of leaking in advance." Metal experts are still expressionless, that is the old in the spy war drama The captain is also a public official.

Chang Yule said nothing about it and signed his own name directly on the confidentiality agreement.

This treatment not only did not make him the slightest solution, but made him filled with unspeakable surprises.

The main bones are all written, and the rest of them can't be indifferent. It’s just that they have turned over and over again to see the confidentiality agreement several times. The last two professors who have cooperated with Tianfu Aviation Industry Group have kept the company in the heart.

Change the future aviation landscape?

This is not even the design of the Tianfu Aviation Industry Group, which is the first stealth fighter in China. At most, they dare to say that they are striving to catch up with the developed countries and strive to become the world's leading aviation industry group in the next decade.

After twenty minutes of tossing, this legendary factory was finally opened to Chang Yule and his party. They took two dedicated electric sightseeing cars and drilled into the factory like a fish.

All the whispers and suspicions disappeared after they entered.

They seem to walk into a giant factory, which can accommodate a six-person sightseeing electric car. In front of the production line of the delicate aircraft, even the edge of the base can not be touched. Two delicate aircraft frames made of alloy are placed at one end of the production line, and now it is only for visitors.

However, it is also clear at a glance that when the production line is finally completed, the huge and strange aircraft on the top of the head can be produced continuously like a production line in a production line factory.

When the sightseeing car smashed into hundreds of magical five-axis machining centers, the two aerospace professional professors could not get any other emotions besides trying to breathe. Their belly in front of the door has been completely shattered by everything in front of them.

Is it a fully mechanized fitting solution?

Whether it is small or large aircraft production, as long as it involves manned people, it is always assembled by hand.

The reason for manual assembly is that, in addition to the inability to use automatic robots to ensure accuracy due to the involvement of complex mechanical components, the most important point is related to the large number of lightweight composite materials used in modern aircraft.

Lightweight composites offer the advantages of high strength and light weight. Whoever can apply more lightweight materials on an aircraft with a weight reduction accuracy of gram means economic success. However, lightweight composites have many insurmountable problems, such as difficulty in soldering.

Different metal materials have different melting points, and the two materials are welded together, and the welded portion thereof becomes quite fragile. If it is used in an aircraft, the vibration caused by the flight can disintegrate the aircraft.

Even if you realize this, lightweight composites are either one-piece or riveted. Because of the structural breakdown of a certain part of the body, the volcanic disintegration event, turning over the history of aviation death, can still find a lot of lessons learned from the blood and tragedy.

The process of assembling an aircraft has been rigorously applied to each assembly worker, and a special torque wrench with a counting function is required to collect the number of rotations of the above one screw.

The tightness of all screws is consistent, allowing the aircraft to avoid local structural anomalies caused by resonance in flight.

This production line in front of us completely broke this assembly plan. Whether it's hundreds of five-axis machining centers or fully automated robots all over the production line, they don't need an assembler, they have all the tools.

At the end of the production line are two gantry-type welding centers that are like mountains.

The height of the welding center is more than 20 meters. From the diameter of the workbench and the sliding track that is scattered underneath, the two professors can easily guess that the two gantry welding centers are the last process to complete the aircraft.

This process is called riveting skin in traditional production.

The outer shell of the aircraft is rivet-connected, because the aircraft skin is a thin-plate aluminum alloy, and this material cannot be welded at all. In addition, the welding also brings structural weakness, and there are defects such as welding residual stress deformation.

When the aircraft is flying at high speed, the body vibration is very strong. With the welding skin, it is likely that a piece of skin with a weld defect will be torn, and then like a piece of torn paper, the tearing opening rapidly expands.

“Would you like to use the welding method to install the skin?” The two professors’ eyebrows kept shaking. “Is it still automatic welding?”

"Is there a problem? Any aircraft must undergo structural static testing. We dare to design this, and naturally we are sure to pass the test." Ye Qing certainly understands the thoughts of the two professors, they must feel that the behemoth industry is crazy.

But the technology is used to break, the existence of the rivet process does not prove that it is stronger than the welding process. Only limited by material and body design techniques, engineers can only use rivets.

A passenger aircraft fuselage has more than 100,000 skin rivets. The rivet is an extra load. With welding technology, it can naturally save a lot of weight.

The two professors muttered a few times and finally found no reason to refute.

Because they have never seen a delicate aircraft, these devices are unheard of in front of them. Do you dare to think about it, and where do you have the courage to gesticulate?

Chang Yule is also considered one of the insiders, and of course understands the importance of rivets to the aircraft. It’s just that he feels that an aircraft like the compact aircraft from the twenty-second century is of course different. Just like a flying ship in a science fiction film, if you connect it with dense rivets, isn't it a big tooth?

As for these mechanics and pilots, they have been thoroughly intoxicated by the huge industrial machinery that has made them excited.

......

When the electric sightseeing car drove out of the production center, the two professors had become timid, and they turned to look at the production center, and they had already taken awe in their eyes.

At the next stop, they came to a seemingly ordinary factory.

The plant is small in size and looks the same as an ordinary factory. However, when the two automatic doors slide open to reveal the aircraft that is quietly parked inside, the crowd on the electric car will not even blink.

"This... this... what is this?"

"Difficult... Is it the previous one that stayed on the production line, that... the complete version of the two aircraft frames?" The two professors stuttered for a long time.

"We are going to test its flight ability. Do you want to..." Ye Qing smiled and nodded, with a bad encouragement of "trying it".

"Ah, can we also participate in the flight test?" The two professors were surprised by the great honor.

The compact aircraft has been coated with a gold-red paint, and the shining behemoth industrial logo is located on the rear door and on both sides of the nose. It does not have the wheel support structure of the traditional aircraft, and four retractable balanced hydraulic props replace the wheels.

Just wondering if you should first attach the guide to the aircraft and then lift it out of the warehouse.

The dome of this warehouse suddenly sounded the mechanical movement of "咔嚓~咔嚓~". Under the sliding rails, the huge dome slowly slipped to both sides.

The two professors sneaked into the aircraft and stepped on the automatic ladder.

Chang Yule wanted to go and dare not tangled expressions, until Chang Yuyu was born with a burdock not afraid of the tiger, if not by her father, she must be the third to enter the cabin.