Chapter 613

Now Wang Huan and others are not calm. They have seen welded parts, cast parts and machined parts. It's the first time that they have seen parts grow on their own.

Wang Huan almost thought his eyes were out of order. He took off his glasses and rubbed them hard. He took out his handkerchief and rubbed them again. Then he put them on again and looked at the screen. Only then did he find that it was not his eyes that were out of order, but the parts in the workbench were growing up. Although they were slow, they were not growing up.

"This This This... "

For a moment, Wang Huan pointed to the screen, which has not been here for a long time. So, there is no way. The current situation is so strange that Wang Huan does not know what language to use to describe it.

"This is the key to our maintenance of jt9d turbofan engine. Nb-233 integrated manufacturing equipment with new laser additive manufacturing technology can directly process some special parts within 15 cm in full vacuum environment."

At this time, josmin suddenly opened his mouth, with an undisguised appreciation on his face, just like looking at his excellent child, full of pride: "the reason why we can complete the low-pressure turbine blade strain crown repair in three days is that this equipment is used."

"Laser additive manufacturing technology? Can special parts be machined directly

After listening to Qiao Shiming's words, Wang Huan seems to have caught something, but he doesn't seem to be sure of anything. There's no way. What Qiao Shiming said is too general. Wang Huan doesn't understand it at all.

Fortunately, Zheng Yongning played a role at this time and began to do some simple science popularization.

The nb-233 was originally incorporated into the North China Laser Research Institute of Tengfei group, and now it is renamed as a special production equipment jointly developed by Tengfei laser research institute and a University of national defense science and technology in Central China.

The initial idea of both sides was to expand its application scope based on the laser welding machine developed by Tengfei Laser Research Institute, and develop a high-power precision laser welding equipment for aerospace and shipbuilding departments.

It is used for precision welding of space launch vehicle and special welding of submarine hull.

Such an important subject inevitably needs a lot of tests. The results show that the welding wire of the same material can not only firmly stabilize the two parts, but also stack them in other directions of the parts after a welding test in the vacuum environment of high temperature resistant alloy.

This discovery is tantamount to opening a window for several experts participating in the research and development to suddenly find that there are more options besides laser welding.

Later, with the deepening of the research and the collection of data, experts learned that the United States had started the research in this field as early as the 1970s, and called this situation laser additive manufacturing technology, which is mainly used for the integrated molding of small high temperature resistant components of aero-engine.

With the discovery and the source, the two research and development units immediately formed a memorandum to report to the higher authorities.

The Aerospace Department has to pay attention to this. However, because there is too little information about this kind of discovery and it is a new discovery, it does not understand the application prospect. In addition, its expected focus is on the laser welding machine, so the new discovery is only a simple support, not included in the focus of the support.

But in Tengfei group, it's different. After seeing the memorandum, Zhuang Jianye immediately took a breath of cool air. Laser additive manufacturing technology is an awkward and complicated name. However, Zhuang Jianye knows that it will have another popular name more than ten years later, industrial 3D printing technology.

Especially with the development of computer level, industrial design software becomes more and more refined. With this kind of industrial 3D printing technology, those complex parts that used to require multi axis machine tools and high technology can be produced on high-level industrial 3D printing equipment as long as the design software on the computer is finalized.

No drawings, no heat treatment, just simple grinding and polishing, is the perfect available parts, properly subvert the existing manufacturing industry pattern.

It's unreasonable if we don't support it.

As a result, Zhuang Jianye took a lot of money and allocated 4 million project bonus to the whole research and development team in addition to the 50 million R & D budget.

The technicians of Tengfei laser research institute have long been familiar with the generosity of their manager Zhuang. Although they are happy to see the funds and bonuses, they are not excited.

The technicians of a university in Central China are different. Even if they spend so much money, there are more than 4 million bonus. It's just a preliminary discovery. Is there so much bonus? The technicians in these ivory towers are almost crazy.

Until the money fell into their hands, they couldn't believe it. They still thought they were dreaming, because many people had never seen so much money in their life.

For this reason, many people who are ready to complete this project and go abroad have changed their mind. They feel that there is no hope in China. At least there are enterprises with conscience that respect science and attach importance to scientific research like Tengfei group.

As a result, the enthusiasm of the technicians in these universities was fully aroused, and all of them fell on the laser additive manufacturing technology.

Take off laser research institute a look, this where line? They started with lasers. If they were compared, where would they put their face in the future? So also use energy to laser additive.As a result, the two sides have formed some kind of competitive relationship in this technology field. On the whole, they cooperate with each other. With the investment of real money and silver, the progress can be described as rapid.

The trial production of the first generation prototype was completed soon.

The leader of the Aerospace Department, who was still at a loss about the laser additive technology, produced the fixed support frame of a certain type of launch vehicle in one day after watching the first generation prototype, and the performance of each level was completely consistent with that of the similar products produced in the past.

The previous dissatisfaction with the two teams' slowing down of the development progress of laser welding disappeared immediately. We should know that although the support frame of this kind of launch vehicle is not large, the design index is very high, and it is still special-shaped, so it is difficult to produce in large scale, so it can only be produced in small batch. Coupled with a series of complex follow-up processes, the general production cycle is more than one month.

But now with laser additive manufacturing technology, one can be produced in one day.

This efficiency may be maddening in other industries, but in the aerospace industry, which is such a sophisticated and complex industry, it can produce complex key components in one day, which is super first-class magic existence.

So the leaders of the Aerospace Department immediately went to the capital to report the details, and soon listed this cutting-edge manufacturing key technology as a national key support project. The Aerospace Department was responsible for the leadership, and the Tengfei group was responsible for the guidance. The two teams specifically undertook the specific research and development tasks.

In this way, the laser forming technology officially entered the fast lane, and soon developed the second generation products, named nb-233 by Zhuang Jianye.

This nb-233 is the first nb-233 equipped in Tengfei group. It is mainly used for the integrated molding of small shaped aircraft parts, so as to improve the efficiency of aircraft maintenance.