Doomsday Bunker Upgrade Chapter 404: 3D printing

A steel structure with a height of more than thirty meters and a length of more than fifty meters cannot be made. This is an incredible thing for the Yan Kingdom.

If larger and more demanding metal components had been made before the disaster, the people of Yan Kingdom would never have been limited by conventions to their imagination.

But in the country where a large number of industrial production capacity has been affected, it is really difficult to manufacture such a steel component, and it is indeed impossible to do it without sufficient industrial base.

Of course there are solutions. As a major infrastructure country, Yan Kingdom certainly has alternatives.

Of course, the easiest way is to change the design and replace the current support column scheme with more columns and support beams that can be processed or simply poured out of reinforced concrete, which can also complete the construction of the dome, but with Correspondingly, more support columns need to be added inside the dome.

Such a plan is more practical, but more support columns inside the corresponding dome will have an impact on the interior space. Although it has little impact under reasonable planning, it is not as good as a transparent overall structure. .

The second method is to use the welding process to manufacture the components of the support column in sections, and then assemble them by welding.

Such a method can naturally meet the requirements. Yan Guo's welding process can already meet such requirements, but overall, segmented welding will still have an impact on the support strength, which is not as strong as the one-piece molding.

Both options can play a substitute role, but the first option affects the space utilization, and the second option affects the structural strength. The design team could not make a choice for a while, so they could only send both options to Chen Xin. side, let Party A make the choice.

The design team did this not to blame, and they also wanted to see if Chen Xin could come up with other solutions here.

Chen Xin Is there a solution here?

The answer is of course yes.

"There are two solutions to this problem, one is that I make a machine that can process steel parts of this size to process what is needed, and the other is to use 3D printing technology to print the required Things." Chen Xin didn't think the problem was too difficult to solve, and also gave two solutions.

“What are the characteristics of these two schemes? Is the structure strong enough for 3D printing?” The engineers and technicians who came to submit the scheme to Chen Xin asked Chen Xin, although 3D printing technology has developed rapidly in recent years , but no one has dared to say that their technology can be used to print such a large metal structure.

And take a step back, even if such a large metal structure can be printed, how can 3D printing ensure that the printed components can meet the requirements in terms of strength?

As for Chen Xin building a machine capable of processing components of this size, the engineers and technicians have no doubts that Chen Xin can do it.

"Building machines to manufacture components is lackluster. Except for the upgrading of machining accuracy and processing technology, it is basically the same as normal machining of such a component, except that using my machine may consume less energy. The quality of the processed components is better." Chen Xin explained briefly, and did not give more explanations about the first plan he proposed.

However, as for 3D printing, he said with great interest: "As for 3D printing, this is basically not much different from the existing technology on the market. It is also sprayed with materials through nozzles, and then sintered by laser. The material is melted and then solidified to form a stable structure.”

Speaking of this, Chen Xin paused for a while, and after the engineers and technicians digested what he said, he continued: "However, the laser sintering technology I used is more effective than the ones currently on the market. The material is also stronger and more durable in structural strength.

In addition, the technology I provide does not require an airtight environment to strictly control air flow and air humidity, and can be applied to the printing and manufacturing of large structures or buildings, even in the raw material, using ordinary metal powder in proportion It is also possible to feed the material and then print the alloy. "

"Alloys can be printed?" A surprised look appeared on the engineer's face.

It's not enough to shock engineers if it's just printing large metal parts, but it's a bit of a mystery to be able to print alloys directly from a single metal powder mixed.

Making alloys is more than just mixing metals together. Different properties require different treatments.

It's like the stainless steel cutlery in your home and the shipbuilding steel for warships are both nickel-chromium alloys, but there is a huge difference in performance between the two.

But this is nothing to Chen Xin, even if he wants to, it is no problem to build a molecular metallurgical furnace, directly decompose various materials from the molecular level, and then rearrange the molecules according to the needs. , it is also possible to obtain the materials you need.

Of course, this level of metallurgical technology is too exaggerated, and Chen Xin is not ready to make it yet.

Only the current 3D printer that can print alloys is enough.

"For the specific principles and techniques, it is difficult for me to explain to you clearly, but you only need to know that I can do it." Go to study" attitude, but he also explained: "I can make a small one first, and you can test it and see the effect."

"That's the best!" The engineers and technicians couldn't say more excitedly at this time, and they were just looking forward to the 3D printer that Chen Xin promised to print alloys.

If Chen Xin can really achieve this, even if it is just printing some simple alloys, it will have extraordinary significance in practical application.

Chen Xin naturally also saw the excitement of the engineering and technical personnel in front of him~IndoMTL.com~ For Chen Xin, this kind of scene where someone is excited because of his own words has been watched too much, and he has always been There was no response to this, so I just nodded indifferently and said, "Then I will make a small prototype for you first, and you can experiment with it. After confirming the effect, we will discuss the follow-up construction plan."

"Okay, Academician Chen!" The engineering and technical staff agreed and managed to suppress the excitement in their hearts.

As for the change of the construction plan, this is of course the intended meaning. If it is a traditional construction plan, it is necessary to build a frame and install and weld it by workers bit by bit.

But if 3D printing is used, then high-rise buildings can be erected on the ground. There is no need for so many construction workers. It is only necessary to let the 3D printer print the main structure by itself, and then the workers will handle the follow-up work.

The two are quite different in terms of engineering volume and construction difficulty.

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