Chapter 404: Three D printing

A steel component with a height of more than 30 meters and a length of more than 50 meters could not be made. This was an incredible thing for Yan Guo.
If before the disaster, larger and more demanding metal components had been made, the people of Yan country would never have their imagination limited by precedents.
However, in the country where a large number of industrial production capacity is affected, it is really difficult to manufacture such a steel component, and it is indeed impossible to do it without a sufficient industrial base.
There are of course solutions. As a major infrastructure country, Yan Country certainly has alternatives.
Of course, the simplest method 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 with reinforced concrete. The construction of the dome can also be completed, but it corresponds to it. That is, more support columns need to be added inside the dome.
Such a scheme is more practical, but more supporting columns inside the corresponding dome will have an impact on the internal space. Although the impact is not large under the reasonable planning, it is not as good as a transparent overall structure after all.
The second method is to use a welding process to fabricate the support column components in sections, and then assemble them by welding.
Such a method can naturally meet the requirements. Yanguo’s welding process can already meet such requirements, but as a whole, the segmented welding will still affect the strength of the support, which is not as strong as the one formed.
Both schemes can play an alternative role, but scheme one affects space utilization, and scheme two affects structural strength. The design team cannot make a choice at the moment, and can only send both schemes to Chen Xin. Party A will make a choice.
The design team did not do this, and they also wanted to see if Chen Xin could come up with other solutions.
Does Chen Xin have a solution here?
The answer is of course yes.
"There are two solutions to this problem. One is to make a machine that can process steel components of this size to process what we need, and the other is to use 3D printing technology to print what we need." Chen Xin didn't think the problem was too difficult to solve, and he also gave two solutions.
"What are the characteristics of these two solutions? In the case of 3D printing, is the structure strong enough?" The engineering and technical personnel who came to submit the solution to Chen Xin asked Chen Xin. Although 3D printing technology has developed rapidly in recent years, it is still No one dares to say that their technology can be used to print such a large metal structure.
And let’s take a step back. Even if such a large metal structure can be printed, how can 3D printing ensure that the printed components meet the requirements in terms of strength?
As for Chen Xin making a machine capable of processing components of this size, engineers and technicians have no doubt whether Chen Xin can do it.
"Making machines to make components is lackluster. Except for the upgrading of processing accuracy and processing technology, it is basically similar to normal processing of such a component. It is nothing but the use of my machine that may consume less energy and is processed. The quality of the components is better." Chen Xin briefly explained, and did not elaborate on the first proposal he proposed.
But 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 a nozzle and then melted by laser sintering. It solidifies again to form a stable structure."
Speaking of this, Chen Xin paused, and after the engineers and technicians had digested what he said, he continued:
However, the laser sintering technology I used has a better effect than the current ones on the market. The sintered materials are more effective than those currently on the market. The structural strength is also stronger and more durable.
In addition, the technology I provide does not require a sealed environment to strictly control the air flow and air humidity. It can be applied to the printing and manufacturing of large structures or buildings, and even the raw materials are supplied with ordinary metal powder in proportion. Then it is also possible to print out the alloy. "
"Can the alloy be printed?" The engineering technician showed a surprised expression on his face.
If you only print large metal parts, this is not enough to shock the engineering and technical personnel, but the alloy can be printed directly after mixing a single metal powder, which is a bit weird.
Manufacturing alloys is not just about mixing metals together, but also requires different treatments to obtain different properties.
It is as if your stainless steel tableware and the shipbuilding steel used to build battleships 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. He directly decomposes various materials from the molecular level, and then rearranges and combines the molecules as needed to obtain himself. The required materials are also achievable.
Of course, this level of metallurgical technology is too exaggerated, and Chen Xin is not ready to make it for the time being.
Just now this 3D printer that can print alloys is enough.
"For the specific principles and techniques, it is difficult for me to explain clearly to you, but you only need to know that I can do this." Chen Xin is still a pair of "I just do things, and you study the principles yourself." However, he also explained: "I can make a small one first, and you can experiment with it and see the effect."
"Then the best!" The engineers and technicians were already excited to say no more words at this time, and they were only looking forward to the 3D printer that Chen Xin had promised to print alloys.
If Chen Xin can really achieve this, even just printing some simple alloys will have extraordinary significance in practical applications.
Chen Xin naturally saw the excitement of the engineering and technical personnel in front of him~EbookFREE.me~ For Chen Xin, this kind of scene where someone was excited because of his own words had been seen too much, and he had always been right. There was no response, so I just nodded indifferently, and said: "Then I will make a small prototype for you first. You can experiment with it. After confirming the effect, we will discuss the follow-up construction plan."
"Okay, Academician Chen!" The engineering and technical personnel agreed, and finally suppressed the excitement in his heart.
As for the change of the construction plan, this is of course the intention. If it is a traditional construction plan, it is necessary to set up a frame, and workers will install and weld little by little.
But if you use 3D printing, you can raise high-rise buildings on the ground without so many construction workers. Just let the 3D printer print out the main structure by itself, and then let the workers handle the subsequent work.
The two are completely different in terms of engineering quantity and construction difficulty.
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