Chapter 406: 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~www.mtlnovel.com~ 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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