Take Off My Aviation Era

The chiefs who came to inspect know that Ascendas Group is top-notch in the industry, but they did not expect to be such a top-notch. You must know that these chiefs do not only study strategy and tactics, command wars, and many of them have professional engineer backgrounds. , There were even a few who were sent to the Soviet Zhukovsky Institute of Aeronautics and Astronautics for further studies in the 1950s and 1960s.

Be a proper technical leader.

So they are very clear about the value of the nb-800 telephone CNC machine tools introduced by Liu Chun. There is no way. It is because this type of special processing machine tool is too important in the aerospace field.

So that in some aspects, high-precision multi-axis CNC machine tools can't do things, but EDM CNC machine tools can easily do it.

For example, the precision machining of the inner hole of the low-pressure turbine of an aero engine. The traditional process requires several machine tools such as a boring machine, a milling machine, a lathe, a grinder, etc., not to count, and several heat treatments are needed to consolidate the material.

After the emergence of multi-axis linkage machine tools, the complex multi-machine tool joint machining is no longer needed. One machining center can complete it, and then heat treatment is performed again, and the finishing of the low-pressure turbine inner hole is even completed.

But is this really perfect?

Obviously not. This is mainly because the low-pressure turbine of the aero engine has a long inner bore shaft hole, thin walls, small holes on both sides, a large middle hole, and complex arcs in the inner wall. It is an important bearing structure of aero engines, which is not only required The machining accuracy is extremely high, and the parts cannot be stressed and deformed during the machining process.

The accuracy of the multi-axis machining center cannot be said, but because its processing method is to use mechanical tools to hard-touch the part itself, stress and deformation cannot be avoided. This is why a key heat treatment is required after processing. The main reason is Eliminate the stress and deformation of the components, or they will be installed in the aero-engine, and the service life will be short. If the internal torsion breaks and the engine stops, it will be more than a loss.

EDM CNC machine tools have no such shackles. This is mainly because such machine tools are not real contact processing, but non-contact processing using pulse-shaped discharge generated by the tool and the workpiece, so there is no stress and Deformed.

As for the microcracks that are easily caused by traditional machining, it is even more impossible. At most, a shallow electric heating white layer is formed. How shallow is it?

But 0.01 mm!

This thickness is completely negligible for general parts, and even demanding parts can be easily handled by special means.

In other words, the aerospace parts processed by EDM CNC equipment not only have high precision, but also have a wide range of materials. After processing, they can be packaged and shipped directly after processing, which requires one less heat treatment than traditional machining.

what is this?

Streamline process and improve efficiency!

Just because of these eight words, any company in the world will be crazy. You must know that heat treatment is an instant technology and a money-burning process. If it is not well controlled, all parts of a furnace may be scrapped, which can reduce such a process. It is a boon for any manufacturing industry.

Therefore, foreign aviation manufacturing powers have been popularizing EDM technology since the 1970s, especially the United States, which has always been in the forefront in this regard. Europe is a bit worse, but it has made some popularization through the introduction of US patents. Rely on German multi-axis machining machine tools.

The Soviet Union has also been applied, but Lao Maozi has just started in CNC, and he has been smashed before he goes deep. Therefore, their EDM is popular, but it does not have the transitional automation and high precision of Europe and the United States.

The domestic and foreign technologies are still very close in the end. Naturally, knowing the advantages of EDM CNC machine tools, I have long wanted to import them from developed countries such as the United States.

However, in developed countries, even multi-axis machining machine tools are included in the list of restricted exports. This type of high-precision EDM CNC equipment that can produce high-quality aerospace products is more strictly controlled, and there is no way to buy it.

Originally, these chiefs were still wondering if they were waiting for the stability of the international situation and looking for other ways to get a few from Europe and the United States. They didn’t expect to see them here at Ascendas Group, and not one, but three or four. There are a total of one or twenty units. This is a bit scary. If you know that other factories can have one, you can dare to say that you are the leader in the country. But if people take off in aerodynamics, there are actually one or twenty. Isn't it a world-class?

"It's no wonder that Mr. Liu said that they can reduce the schedule to half a month. So many CNC EDM machine tools cover almost all the processing of key components of aero engines. Without complicated heat treatment processes, it is not impossible to reduce the production cycle. "When Liu Chun introduced several EDM CNC machine tools with different functions, some well-informed leaders or technical officers had already started to talk in private.

Listening to the comment of a military officer next to him, a chief nodded in agreement: "It is true that this type of machine tools are all high-tech processing equipment in developed countries that restrict exports. Ascendas Group can actually make a breakthrough. Obviously we have all Look down."

"Yes." Another army chief wearing a navy uniform also said with emotion: "I thought that the Ascendas Group was making money. I didn't expect that they did not give up in the high-end technology field. To put it mildly, there is no vortex. The fan engine ~www.readwn.com~ is enough to establish Ascendas Group's position in the domestic aviation industry with this model of nb series EDM CNC machine tools."

"This is correct, but have you found out that the head of the headquarters and the two comrades of the Second Artillery Corps do not seem to be as surprised as we are?" At this time, a head of troops from the Air Force suddenly reminded.

The heads of the troops who fell behind looked at the head of the headquarters, and indeed told the head of the air force in front of him that instead of being too surprised, the head of the headquarters showed an expression of unspeakable relief on his face.

The two heads of troops from the Second Artillery Corps following the heads of the General Headquarters were even more plain and surprising, looking like they walked through the field.

I’m not stupid. I can see from the scene that these CNC equipments have already existed in the aerospace department. This explains why these things have not been known to outsiders. Obviously these machine tools are a new type of missile in the aerospace department. The supporting processing equipment of China involves the National Heavy Equipment, and a period of sensitive period is inevitable.

But now it seems that this sensitive period has been loosened, otherwise the head of the headquarters will not be able to bring them over. You must know that in some cutting-edge manufacturing fields, they are also out of the reach of leading cadres at the head of the army.