Chapter 1212

"This..."

Of course, the person in charge of the aeroengine manufacturing factory also wanted to explain, but after a long time, he was speechless and speechless.

The number of 0.15mm film cooling holes is more than 1800, which is not the traditional sense of ordinary hole processing, but rises to the category of non-traditional machining. Not only that, because of the number of factors, but also the top and most complex special group hole processing in the special precision hole processing.

In this respect, let alone Japan, even Germany, which leads the way in mechanical equipment, can't do it. Only the United States, a superpower with absolute leading position in aviation technology, can have such ability.

So let alone that the person in charge of the air development manufacturing plant can't get it out right now. Even if we search all over Japan, we can't find such equipment. Otherwise, why should Japan stumble in the aviation manufacturing industry? In addition to relying on the national efforts of the older generation of aviation designers left over from the World War II in the 1960s to produce an unsuccessful regional airliner, Japan has not been able to survive for decades Not even a self-made aircraft skin?

It's not that the whole industry has been suppressed invisibly, so there is no way to move forward. Of course, it's OK to work as a senior agent and wage earner for the aviation giants in the United States. But just because of this, Japan's aviation industry is completely limited in parts, and even has no chance to touch the whole.

Just like the blind touch the elephant, no matter how well the part is done, without the overall feeling, it is still unable to complete a higher level of sublimation.

This also brings difficulties for Japanese machining equipment to overcome. After all, the aviation industry is very experienced. You can't even touch it when you are young in Japan. How can you talk about experience?

Therefore, Japan's hole processing machine tools may be able to make precise holes of about 1 mm, but the ultra precise holes of less than 0.3 mm will not work, let alone the ultra precise group holes applied to the air film holes of Aero-engine Turbine Blades. It is estimated that I have never seen them in Japan.

After all, Americans don't take out their heart and lungs to find Japanese OEM. They leave all the core components such as aeroengine to the Japanese. Americans always work on their own and never leave them to others.

The person in charge of the aeroengine manufacturing plant is engaged in business, but he is not really engaged in doctrine. He has a clear knowledge of these things, not to mention Zhuang Jianye, who has been vigorously promoting the processing equipment produced by Tengfei group. Therefore, seeing the person in charge of the aeroengine manufacturing plant speechless for a moment, Zhuang Jianye is not polite and shakes the metal wave spring in his hand "In addition, there are 627 holes with a diameter of 0.1 mm for the whole spring with a thickness of 2 mm. If you know people from Japanese related enterprises, ask them if they have a drill with a diameter of 0.1 mm?"

As soon as the words came out, the people in charge of the aviation development factory noticed that the wave spring was also densely covered with tiny holes.

It's not that these people don't observe carefully, it's that they have a preconceived idea that the metal materials inside don't need to be treated too much. In addition, the light is blocked under the wings, and a group of veteran cadres over 50 years old are all presbyopia, so it's normal to ignore them for a moment.

But when Zhuang Jianye reminded them, these people naturally reacted. They immediately found out the presbyopic glasses when their eyes were not good. Some even took out the magnifying glass and looked at the samples carefully for a long time, which led to a series of exclamations.

"It's very difficult to make a 0.15mm hole, and the material is so thin that ordinary heat source or machining can't do it at all."

"Yes, the heat source will cause a deposit around the hole of the material, which will damage the properties of the material itself; and pure machining, such a thin material is easy to cause cracks, which will make the rejection rate as high as frightening."

"En ~ ~ that's right. 0.15mm is enough. 0.1mm is the thickness of ordinary printing paper. No matter it's heat source processing or mechanical processing, it can't be done at all. Even the most advanced equipment on the market can't match our best operators, so..."

"It should be electrochemical machining. I remember that Tengfei group seems to have developed similar equipment."

"I remember that some time ago, the person in charge of Hangfa manufacturing plant, which was built with Zhuang Jianye, imported two electrochemical machining centers from Japan..."

The discussion around is more and more noisy. However, in these noisy discussions, the processing technology of the metal core and the film cooling hole on the wave spring put forward by Zhuang Jianye is more and more clear in front of people's eyes.

I can't help it. Although most of the people present are leaders, they are all old birds who have been working in the field of aviation development for decades. It may be difficult for them to start building aeroengines themselves, but it's very reliable for them to take charge.

But just because of this, the person in charge of Hangfa manufacturing factory, who followed Zhuang Jianye, also calmed down from the confusion just now. Although he didn't say anything more, his smelly face showed such a relaxed attitude, as if to say that you Tengfei group has electro-chemical processing equipment, we also have it, and it's better than yours. It's pure imported from Japan But the birthplace of electrochemical equipment, the world-class, how about? No more incantations!"Xiaozhuang, we do have several brother factories that have imported electrochemical processing equipment from Japan. The overall process is very good. As you said just now, you are willing to transfer part of the technology to brother factories, so..."

At this time, the deputy director of the Department opened his mouth timely and picked peaches as usual. That's all. The key is that the expression you're sure of is how much you owe to beat and how much you owe to beat.

After listening to the words of the deputy director general, the other responsible persons of the aviation development plant also stopped a round, and immediately stared at Zhuang Jianye with a strange look, as if they saw some prey, and they could rush to the next moment and directly break up the pieces.

There's no way. The only position of the directors of these aviation development plants is their achievements. If there is nothing to replace in Tengfei group, they should lower their heads and cooperate with each other. But if they can afford nothing, they should try, or they will become fools?

So in their group, it's not just the person in charge of the aviation development plant who follows Zhuang Jianye's hard line, who is full of talk and business in mind, but one of them is not a good bird.

Of course, including Zhuang Jianye!

Because of this, as soon as the deputy director's long talk on the rationality of "monkey picking peaches" was over, Zhuang Jianye replied with a smile, which immediately made the deputy director's face black as the bottom of the pot: "electrochemical processing equipment was completely eliminated in the second half of last year, and even the patented technology was sold to Kobayashi chemical Well Leader, don't tell me that what several brother factories bought is produced by Xiaolin chemical, and they bought our obsolete products at a high price again? "