Monster Factory - 909

Who has encountered this kind of treatment?

Dozens of brawny men in black were onlookers abruptly. The faces of these mechanics and pilots were filled with inquiring expressions similar to those of netizens meeting.

The object of exploration is naturally the mainstay and constant joy.

Chang Yule was also stunned. He had never encountered such a scene in his entire life.

“Why… why?” The two professors from Tianfu City Flight College hesitated to say that the aerospace and aviation major allowed them to come into contact with similar non-disclosure agreements in the past. But when the agreement was signed, there were obviously not dozens of strong men around.

“Because you are about to visit a production base that can change the pattern of aviation in the future, and because this is a commercial cooperation, we must eliminate the possibility of leaking in advance.” The metal expert is still expressionless. The captain is also on business.

Without saying anything, Chang Yule directly signed his name on the confidentiality agreement.

This treatment not only didn’t make him feel bad at all, but it filled his heart with unspeakable surprises.

The master’s heart has been written, and these people can’t be indifferent. It’s just that they tossed over and read the confidentiality agreement several times, and the last two professors who had cooperated with the Tianfu Aviation Industry Group on the subject kept slandering the company in their hearts that it was okay to put on airs.

Change the future aviation landscape?

Even the Tianfu Aviation Industry Group, which designed China’s first stealth fighter J-20, dare not say this. At best, they dare to say that they strive to catch up with developed countries and strive to become a world-class aviation industry group within the next ten years.

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

All the whispers and doubts disappeared after they entered.

They seem to walk into a giant factory, a sightseeing electric car that can accommodate six people, in front of the production line of delicate aircraft, even the edge of the base can not be touched. Two exquisite aircraft frames made of alloy are placed at one end of the production line, and now they are only for people to visit.

But at a glance, this also made everyone realize that when the production line is finally completed, the huge and strange flying vehicle overhead can be produced continuously just like the production of cans in an assembly line factory.

When the sightseeing car walked to hundreds of five-axis machining centers, the two aerospace professors could not express any emotions except for breathing hard. The abdomen before they enter the door has been completely shattered by everything in front of them.

Turned out to be a fully mechanized assembly solution?

Whether small or large aircraft are produced, as long as manned is involved, they are all assembled by hand.

The reason for manual assembly is that it involves complicated mechanical components and cannot use automatic manipulators to ensure accuracy. The main point is that modern aircraft use a large number of lightweight composite materials.

Lightweight composite materials have the advantages of high strength and light weight. In an aircraft whose weight is reduced to the nearest gram, who can use more lightweight materials means winning economically. However, lightweight composite materials have many insurmountable problems, such as difficulty in welding.

Different metal materials have different melting points. If the two materials are welded together, the weld will become quite fragile. If it is used in an aircraft, the vibrations generated by the flight can disintegrate the aircraft in the air.

Even if you realize this, lightweight composite materials are either integrally formed or riveted. But because of the structural breakage of a certain part of the airframe, the volley disintegration incident occurred. Looking through the history of aviation disasters, we can still find a lot of lessons drawn from blood and tragedy.

The process of assembling an aircraft has been so demanding that every assembler needs to use a special torque wrench with a counting function to collect the number of rotations of the upper screw.

The tightness of all screws is kept the same, which allows the aircraft to avoid local structural abnormalities caused by resonance when the aircraft is in flight.

The production line in front of us completely broke this assembly scheme. Whether it’s hundreds of five-axis machining centers or fully automatic manipulators all over the production line, it shows that they don’t need assemblers, just have machines.

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

The height of the welding center is more than 20 meters. Judging from the diameter of the workbench and the sliding tracks all over it, the two professors can easily guess that the two gantry welding centers are the last process to complete the aircraft assembly.

This process is called riveting skin in traditional production.

The outer shells of the aircraft are connected by rivets, because the skins of the aircraft are all thin-plate aluminum alloys, which cannot be welded at all. In addition, welding will bring about different structural strengths, and defects such as welding residual stress and deformation.

When the aircraft is flying at high speed, the body vibrates very strongly. When welding skin is used, it is possible that a piece of skin with welding defects will be torn, and then like a piece of torn paper, the tear will expand rapidly.

“Do you plan to use welding to install the skin?” The eyebrows of the two professors kept shaking. “Or the automatic welding process?”

“Is there a problem? Any aircraft must undergo a structural static test. We dare to design this way and we are sure to pass the test.” Of course, Ye Qing understands the thoughts in the hearts of these two professors. They must think that Behemoth Industry is crazy.

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

There are more than 100,000 rivets in the fuselage of a passenger plane. The rivets are extra heavy. The welding technology can naturally save a huge amount of self-weight.

The two professors murmured several times, but in the end they couldn’t find any reason to refute.

Because they have never seen the exquisite aircraft, and the equipment in front of them is unheard of. If you dare not think about it, where does the courage come from to point out?

Chang Yule is also considered one of the insiders, and of course understands the importance of rivets to airplanes. It’s just that he thinks that the aircraft from the 22nd century, like the exquisite aircraft, is of course to be different. Just like the flying ship in a science fiction film, if it is connected with dense rivets, wouldn’t it make people laugh out of their teeth?

As for these mechanics and pilots, they have completely indulged in the huge industrial machinery that made them excited.

…

When the electric sightseeing car drove out of the production center, the two professors had become awed. They looked back at the production center, with awe in their eyes.

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

The scale of this plant is small, and its appearance is no different from an ordinary plant. But when the two automatic doors slid open, revealing the aircraft quietly parked inside, the crowd on the electric car couldn’t even blink.

“This…this…what is this?”

“Didn’t it…the one that stayed on the production line before, that…the full version of the two aircraft frames…?” The two professors stammered for a long time.

“We are going to test its flying ability, you two, do you want to…” Ye Qing smiled and nodded, with the bad encouragement of “try it” in her eyes.

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

The delicate aircraft has been plated with a layer of gold and red paint, and the shining Behemoth Industry logo is located on the tail door and on both sides of the nose. It does not have the wheeled support structure of a traditional aircraft, and has four retractable and balanced hydraulic struts instead of the wheels.

Just when people were wondering whether to install guide rails for this aircraft first, and then drag it out of the warehouse.

The dome of this warehouse suddenly made a mechanical sound of “click~kacha~”. Driven by the slide rails, the huge dome slowly slipped to both sides.

With a beep, the two professors stepped on the automatic stairs and got into the aircraft.

Chang Yule had a tangled expression that wanted to go but didn’t dare, until Chang Wanyu was a newborn calf who was not afraid of tigers. If her father hadn’t grabbed it, she would have gotten into the cabin third.