Laser sintering technology has appeared, which means that the other party is now able to use 3D printing technology to process some small basic metal parts.

For example, the housing of a car transmission or the hydraulic oil valve inside the car transmission, these not too large parts are key components of a car's automatic transmission.

For example, the housing of this transmission is now used on a large scale to casting process, and some processing and polishing techniques will be used later.

However, the shape of such a shell, especially the outer surface, will have many small metal gullies that are winding and winding on the outer surface. These gullies are often related to the performance design of the gearbox and are unavoidable parts.

Later generations have plagued the domestic automotive industry. The housing of this transmission alone has caused many companies a headache.

The thickness must be kept within a certain range, and the error must be small. If you are thicker, there will be changes in weight and volume, which will affect the fuel consumption of the car and the layout design of the gearbox.

If it is lighter or thinner, you cannot guarantee the quality and service life of the gearbox. So just such a small gearbox shell has caused many domestic automobile manufacturers to worry.

The processing technology and process are very particular, but a few years later, Ford in the United States has begun to use 3D printing technology to produce the housing of this transmission.

There is also the hydraulic oil valve in the gearbox, which is also the key to the automatic transmission. As we all know, the current automatic transmissions are basically hydraulically controlled forks to shift gears.

Such hydraulic oil valves will be designed very exquisitely, and the pipelines inside are very complex. They can be said to be bending, vertical and horizontal. They have very high requirements for processing accuracy and process.

The domestic hydraulic field is already very backward. The process of combining finishing processing is even more complicated and difficult. So until ten years later, there were not many domestic manufacturers who mastered the technology of hydraulic oil valves. According to Li Yifan's understanding of the domestic automobile industry, it seems that at that time, there were only two manufacturers in China that could produce completely independent hydraulic oil valves, byd and Geely.

This shows the difficulty of producing core components of such cars. If 3D printing technology is used, then many finishing problems that plague the domestic automobile industry will no longer be a problem.

The key to using 3D printing technology to produce such small automotive parts is that you must master the laser sintering technology of powder metals.

That is to say, mix several metal powders together in proportion, then use lasers to quickly melt these metal powders at high temperatures, and then spray them with nozzles according to the model that the computer has long built in the 3D printer, and then quickly dry and cool to form an integrated product. This is the essence of laser sintering technology.

So far, it seems that only the United States has mastered the core key technologies of this laser sintering technology. Moreover, because the cost is high, this technology has not yet been recognized by many large manufacturers.

But ten years later, when 3D printers had already quietly entered all walks of life in the manufacturing industry, Ford in the United States began to apply these technologies to produce automotive parts, countless latecomers began to beat their chests and stamp their feet. I thought I had learned about it at the beginning, but I didn't expect this technology to develop so quickly...

Moreover, for the automobile manufacturing industry, this 3D printing technology can also be used not only to produce automobile models and metal parts.

You should know that there are many plastic parts on a car, such as the interior door panels, operating tables, central controls, etc. of the car require a large number of plastic parts.

According to the original model, the designer must spend several months purely manual opening, but after the 3D printing technology matures, the pure manual working method can be completely omitted.

For example, Volkswagen, more than ten years later, almost all large plastic parts on their cars were produced using 3D printing technology.

This saves them a lot of process processes, as well as materials and time costs.

Yao Chongshan was playing with the metal ornaments of a lady in his hand, and his face looked gloomy and sunny. He had been playing with this handicraft for a long time.

It is about twenty centimeters tall and does not count as the base. The statue of this lady flying in the sky is made of metal, and at least there are no traces of post-machine processing on the surface.

Moreover, it is difficult to distinguish how this ornament is made by looking at the surface. You should know that such a lady's ornament is not as square as other metal crafts.

Her shape is very unique, with linear fluids and metal materials, so it is definitely very difficult to make. If you use machining methods, it will take a long time, and the process will be very cumbersome and the cost will be very high.

If the product is made by casting, did he find any cavity below the lady Feitian? You should know that the key to metal casting is that there is usually a cavity below the finished product. After casting, the wax or sand mold inside is made, but he did not see it at all in this metal craft.

After playing for a long time, he finally believed that this metal lady Feitian should have been produced by Professor Hu Bin of Huazhong University of Science and Technology and his team using laser sintering technology and combining 3D printing technology.

This made him even more interested in Professor Hu Bin. When Li Yifan proposed to find two helpers for him, he was a little repulsive.

After all, in his opinion, based on his understanding of the current domestic environment, let alone understanding this 3D printing technology, I am afraid that not many people have heard of this technology.

But what he didn't expect was that it really responded to the old saying: There are people outside of people, and there are heavens outside of heaven.

When he thought that he should be the pioneer of 3D printing technology in China, there were already people at Huazhong University of Technology who had already overcome the powder metal laser sintering technology, which is one of the most difficult 3D printing technology.

"Xiao Li, brother, when are you going to find this Professor Hu?"

"It should be two days? I've been very busy lately and time is very tight."

Li Yifan didn't know why Yao Chongshan asked this, but after this guy asked, his attitude on his face seemed a little distorted.

"What's wrong? Brother Yao, do you have any other ideas?"

Yao Chongshan's face turned a little red. He twisted for a long time before finally saying a few words.

"That...that...xiao Li, can I go to central China with you? I think such a powerful person has already appeared in our country, but I don't know at all. I feel ashamed to think about it. This teacher Hu should definitely be the pioneer of this industry. I still have many questions about this industry, but I have never found any suitable person to answer it for me, so I want to go with you, ask him and ask him to solve my doubts."

Although Yao Chongshan is a little bit petty, his essence is not bad. Once someone convinces him, he immediately extinguishes other thoughts and admires others wholeheartedly. As for emotions such as jealousy, he rarely has them, which may be the biggest advantage of technical otakus.

"Hi! What am I doing? Don't worry, I'll book a plane ticket in a few days, let's go there together."

I believe it would be more convincing to be able to bring someone like Yao Chongshan to Hu Bin. Of course, Li Yifan couldn't be happy that there would be a half-baked expert like Yao Chongshan around him, so as not to see Professor Hu Bin in the end, and people would be regarded as a liar.

"Hehe, that's good, that's good..."

After all, Yao Chongshan just left school and was still a simple game. He was very happy when he heard that he could take a plane. After all, he traveled around the world over the years and took trains. And the teacher was sitting in a sleeper berth, and he sat in a hard seat.

He hasn't done a high-end thing like an airplane.

"Haha, don't worry, I will definitely call you at that time. By the way, Brother Yao, let's not talk about those. Didn't you talk about this 3D printing technology before, if it is applied to the modeling of large castings and forgings? And you also said that such large castings and forgings are not only used in power plants, right?"

Li Yifan is still very concerned about the market for this large forged casting. After all, this is related to the future development prospects of his special metal company, so he also wants to know more from Yao Chongshan's mouth.

Yao Chongshan had no idea or need to hide such information at all. When Li Yifan asked, he said everything.

"That's not, as far as the zoning of modern industries is concerned, the small processing industry has little prospects for 3D printing technology, but in the heavy industry, this technology is definitely promising, especially those heavy industrial enterprises that require a large amount of metal casting and forging accessories. I won't talk about the power enterprises. We have also said it before, so I will tell you two other industries that require a large amount of large metal casting and forging accessories, one is the petrochemical equipment industry, and the other is the ship manufacturing industry..."
Chapter completed!