Chapter 399 In the Next 20 Years, the Market Size Will Be US$1 Trillion

Chapter 399 In the next 20 years, the market size will be US$1 trillion

When Mu Yang came home at night, seeing Song Xuelu's obviously swollen belly, he was very happy.

Song Xuelu has been pregnant for five months, and he is not far from becoming a father.

"Girl, dad is back."

What Mu Yang likes to do is to put his ear on his wife's belly and listen to the movement in her belly. His wife said that now he occasionally feels fetal movement.

"Really, you look like a child who can't grow up. If the employees of the company see you like this, they will probably laugh." Song Xuelu puffed out her stomach, rubbed Mu Yang's head and smiled.

"You see it when you see it. The feeling of being a father is easy to understand. People who are not married don't understand it." Mu Yang smiled, "How do you feel today? Wife, your weight is getting heavier and heavier. It’s time to wear soft-soled shoes, and avoid hard-soled shoes.”

"Well, I'll pay attention. I've been practicing the piano recently, and I just learned the staff." Song Xuelu feels that playing the piano can be used for prenatal education, and it's also good for children in the womb to listen to music.

"Oh, it's also good to practice the piano. Anyway, as long as you like it, you don't have to force yourself. Anyway, your husband is blind to music. He can only listen, but can't sing."

"I really like playing the piano. When I was studying in the past, my family didn't allow it. I didn't dare to let my parents buy a piano. Besides, there are no piano training classes in our town. It is too difficult for children to learn piano."

My wife said that now that the family has the conditions, learning music can make people more cheerful, not to say that they should develop into entertainment, which is better than letting children learn to weld with a welding torch, or drive a CNC machine tool.

How the child will develop in the future, the couple has no plans yet, it depends on the child's hobbies.

Mu Yang doesn't even have the idea of ​​letting his children take over. If he doesn't have the ability, it will only make the company worse. What's more, Mu Yang plans to work until he grows old, or he will waste it.

Mu Yang chatted with Song Xuelu and hung out with her.

The next day, Mu Yang continued to invest in scientific research.

When I returned to the office to rest, I received a call from the technical manager of the additive project team.

"Chairman, the additive laser system has been successfully developed!"

The tone on the phone was five points excited, three points expectant, and two points uneasy.

The other party expects the chairman's praise and worries about the chairman's criticism.

Large-scale SLM (laser) metal additive equipment includes control systems, automatic powder processing devices, laser systems, machine tool systems, etc. It can be said that each of them is very critical.

For example, the automatic powder processing device, because each 3D printing process requires a large amount of powder as a carrier, the amount of powder is often measured in "tons".

The safety risks brought about by the operation of such a large amount of powder are very high, such as powder filling and cleaning, powder transmission and processing, etc. The traditional manual powder handling method is no longer suitable for this type of equipment, and must be developed and equipped Matching automatic powder handling device.

The powder particle size is extremely fine, how fine is it?

For example, the selective laser melting process uses 15-53 μm powder (about 325-1000 mesh), the thermal spraying process uses 15-45 μm powder, and the electron beam printing uses 45-105 μm powder!

The micrometer scale μm has been used as a unit.

Many people are curious, how is this processed?

This powder is actually a spherical alloy powder, and of course the micron level does not need to be processed by conventional machining.

The metal is gradually melted into a metal liquid under electromagnetic induction heating, and then flows down in the tundish, and is blown into micron-sized droplets under the action of high-pressure and high-speed inert gas, and finally cooled into metal powder particles. During the cooling process, due to the effect of surface tension, the liquid droplets tend to be spherical, so the solidified powder particles are spherical.

The processing technology is like this. If you think about it, you will understand. If you can't think of this idea, you can't make it with any conventional manufacturing method.

We all know that the finer the powder, the easier it is to be damp. After being damp, it will become a ball, which will definitely affect the use. The most feared powder transmission will not be smooth.

Alloy powders with good fluidity, uniform particle size, high sphericity, and high density are required, so the requirements for automatic powder processing devices are very high.

At present, Xinghai Group has developed a prototype of automatic powder processing equipment, which can be used, but needs to be further optimized.

The second key equipment, the laser system.

In order to ensure that there is no material blockage during the laser material addition process, or how to automatically process the blocked material, the laser automatically adjusts the accuracy and power, and the laser head is resistant to high temperature and wear resistance, etc., the entire system has very strict requirements.

The material of the laser head is unconventional chrome-copper. Chromium-copper can withstand high temperature, but its hardness is too low, lower than steel, so it is not wear-resistant. It is a new type of tungsten-molybdenum alloy developed by Xinghai Group, which is more resistant to high temperature and has a higher hardness. Extremely high, of course, the difficulty of processing is also very high.

It can be said that the development of the additive automatic powder processing device and laser system can be said to be a semi-finished product of the additive equipment. Simple 3D printing samples can be made, but products with complex structures cannot be manufactured, and a numerical control system is still required.

"Oh, okay, I'll come and take a look."

When Mu Yang heard the words, there was a hint of surprise in his eyes. At this moment, he just wanted to chant a poem: Ah, it's awesome!

He explained to the technical manager of the project team that if there is a big progress, he can call him to report, or if there are extremely difficult problems, he can also contact him directly.

Once the laser system is complete, you can try to make simpler 3D parts.

After a while, Mu Yang came to the laboratory lightly.

This laboratory is a dust-free clean room, and the real production workshop is also required to reach the lowest level of dust-free clean room.

The first assembled equipment covers an area of ​​seven or eight square meters, and can process workpieces with a length, width, and height of less than 800 mm. It is considered a medium-sized metal additive equipment, and it is only a single-head laser system. purchase.

When he arrived, the equipment was manufacturing a simple component. The processing space was closed and could only be watched through the real-time monitoring screen on the computer.

There are more than a dozen scientific researchers busy at the scene, including Ni Qingfeng, the additive project technical manager who is waiting for Mu Yang to arrive.

"How about it?"

When Mu Yang saw Ni Qingfeng, he asked directly, "What experiments have you done?"

Ni Qingfeng was originally a researcher at the Chinese Academy of Sciences and a Ph.D. in materials science from Harbin Institute of Technology. He was recruited to Xinghai Group by a headhunter. He is 39 years old this year.

"Chairman, here are some small parts that have been processed. Samples are taken from two parts. The material used now is austenitic stainless steel 316. After a macro analysis, the grain size of the unit cell is better than that of ordinary castings, and the structure is relatively uniform. There is no Structural defects. We also did a low-temperature impact at minus 186 degrees Celsius, but the toughness did not meet the requirements.” Ni Qingfeng roughly reported the experimental data.

The macroscopic experiment looks at the material structure, and the low-temperature impact experiment looks at the toughness of the material. Only doing these two experiments is enough to see how the processed material is, and it is also an important indicator of additive materials. If the results of these two experiments fail to meet the requirements , other experiments can also be omitted.

For materials processed by 3D additive equipment, the tensile strength, hardness and chemical composition of the material are generally no problem.

If it is an additive equipment with a poor technical level, the processed material may have a very coarse material structure, that is, a unit cell, and a large material grain size. Moreover, there may be defects such as fine pores and impurities inside the material.

Mu Yang picked up the three samples and took a look at the fractures under the toughness impact test. The appearance of the fractures was like a wire-drawing dimple, not as flat as a brittle material, indicating that it was still tough.

"The impact power is around fifty or sixty, it's far from around one hundred."

"Chairman, you can guess the impact energy just by looking at the fracture. The error is only a few, which is amazing." Ni Qingfeng admired him very much and asked him to judge that it is normal for the error to be within twenty or thirty. If it is an ordinary person, Where do you know this knowledge, you have to go through many material impact experiments to know.

The dozen or so employees around also have to admire it. Many of them are not material engineers and can't understand the principle, but they feel very powerful.

"You have done a lot of impact toughness experiments, and you can estimate nine out of ten. What's so strange." Mu Yang said lightly. After speaking, he realized that he was different from others. He obtained this knowledge through development. hanging absorbing.

"Yes, it means that we haven't done the experiments carefully enough. We have done a lot of experiments, but there are too few summaries." Qingfeng Ni nodded and admitted his problem. Being the chairman of the board shows that I am not careful enough.

Next, Mu Yang asked Ni Qingfeng while watching, and at the same time had a technical exchange.

Ni Qingfeng asked the chairman a lot of technical questions and solved a lot of his doubts.

"Assemble a few more machines and do more experiments. Our laser printing work time is not just a few hours, but it may take several days, or even dozens of days. If the processing is interrupted, there will be more or less flaws." Mu Yang commanded.

"OK, all right."

Mu Yang concluded to Ni Qingfeng: "You can be considered to have achieved initial results, but it is still a long way to achieve my expected goal.

Don’t compare it with the metal additive technology on the market. We want to be the world leader, and the structure and performance of the material must reach the level of forgings. When it reaches it, it will transform and change by leaps and bounds. "

The employees listened carefully to the words of the chairman. Next, Mu Yang analyzed with them what needs to be improved in this laser system and how to improve it.

At the same time, I also told Ni Qingfeng about the planned cooperation with Shangfei Company. After a while, I will take him to Shangfei Company to really experiment with products.

In the field of aviation, additive manufacturing has unique advantages such as reducing the weight of aircraft, forming complex parts and realizing parts integration. It has great value and broad application prospects.

For example, GE's future advanced aero engine GE9X, more than one-third of the components are completed by additive manufacturing.

If the additive technology is better, the percentage that can use the additive technology is more.

The efficiency of additive materials is slow. For example, the printing of the glass window frame of the C919 aircraft cockpit may take 40 to 50 days to complete if it is a general additive technology. It may not be sure, it may not be suitable, and some places may not be able to be made with molds.

Moreover, the mold has a disadvantage. If the structure is to be changed, the mold will be scrapped. The manufacturing cost is too high, and it is time-consuming. It is not suitable for manufacturing thin-walled structures and overly complicated structures.

Of course, open mold casting also has advantages. If the design is finalized, it is suitable for mass production.

early March,

In response to Wu Hui's invitation again, Mu Yang brought a team to Shangfei Company, including Ni Qingfeng.

This time, the number of people who received Mu Yang was very grand. All senior executives of SAIC, including the newly appointed Shu/Ji, and Academician Wu Hui stood at the gate to welcome Mu Yang.

The newly appointed Shu/Ji is Ying Yiquan, concurrently the general manager, who is ten years younger than academician Wu Hui.

Before he came to take a job in SAIC, his superiors had communicated with him and asked him to cooperate with academician Wu Hui to do a good job in team work, and also to do a good job with partners. In particular, he pointed out that Xinghai Group must be taken seriously.

Ying Yiquan had to pay attention to it. He was investigated because he offended Mu Yang when he took office. He didn't want to follow the other party's path.

Seeing Mu Yang, Ying Yiquan smiled and shook hands with Mu Yang enthusiastically: "Mr. Mu, you are very welcome. I have been looking forward to it for so long, and finally I am waiting for your arrival."

"Mr. Ying, please be polite." Mu Yang didn't expect the person in front of him to be so enthusiastic.

"Mr. Mu is a respected scientist and entrepreneur. It is our honor to come to SAIC to guide our work."

"We are also here to learn from you. We hope that we can learn from each other's strengths, make up for our weaknesses, and make progress together."

"That's right, that's the truth."

Mu Yang felt that the atmosphere was different from last time, when others gave him face, he also respected others.

Of course, it is also possible that due to the situation, we have to do something.

Wu Hui felt very sorry when he saw Mu Yang, and apologized to Mu Yang again. Mu Yang didn't take it seriously, and let it go.

Ying Yiquan and Wu Hui took Mu Yang's team to the conference room to rest and talk about some light-hearted topics first.

Next, the two parties signed a cooperation agreement.

The two parties have communicated about the rights and interests of the patented technology, which is the same as Mu Yang's original request, so Mu Yang has no objection to the agreement.

Without signing a cooperation agreement and a confidentiality agreement, it is impossible to tell Mu Yang about some confidential things in detail.

The C919 large aircraft project is not a small project, not only the meaning behind it, but also the above-mentioned large civil aviation aircraft market.

The market size of civil aviation large aircraft is very large, especially the 150-seat class. In the next 20 years, the domestic demand for civil aviation large aircraft will reach 7,000. If the standard price of A320 and 737 is used, it will be close to US$1 trillion;

According to SAIC's strategy, the market price of the C919 is US$90 million, which is slightly lower than the US$110 million standard model of the A320 and 737.

The planned annual production capacity of the C919 of SAIC is 100-150. According to the historical trajectory, the order was received in 2017, but in fact, the first payment for the new aircraft will not be officially made until 2022, and the sanction of the beautiful country is in the hands of SAIC. A knife was stabbed in the back at the critical moment, making it difficult for SAIC to buy engines again, and it would be difficult to deliver on schedule if there was no inventory.

When the order for hundreds of planes was received, all members of SAIC were excited, but they did not expect the crisis to be so serious.

After all, it has to independently develop the aero-engines used in large aircraft.

In fact, it is not impossible to produce aero engines in China. For example, some of the fighters used by Jun use domestic engines, but the one used by Jun is different. It is manufactured regardless of all costs. The cost is too high to be used in the commercial market. Competing with international giants online; the other is for private use, directly ignoring patents, if you can steal it, it is yours, you can sue if you have the ability, I feel that all countries have acquiesced, but it must be a different nature if you want to use it in the civilian market.

Of course, make do with it is definitely not enough, after all, it is a civil aviation airliner, and the lives of passengers are paramount.