"Leader, this is not a pitfall...lā is also for the development of national defense. Now our big press has been done, and we can do it with our arms around in many aspects. If the heart disease problem in the aviation industry is not solved, our subsequent development will be extremely poor..." Xie Kai said pitifully.

Long Yaohua almost kicked him in the face.

Too shameless.

Looking at Zheng Yucheng and Wang Guilin, the two old foxes looked like they were not concerned about their own affairs.

Especially Zheng Yucheng, he actually used his little finger to look at the sky with his nostrils. This attitude deeply made Long Yaohua extremely dissatisfied.

These two old guys are getting more and more excited, and Xie Kai asks himself three times a day!

"Don't pretend to be innocent! You two are short of others and find a way to find a way. You have to let Xie Kai stand up and ask for others. Do you want shame?" Long Yaohua was so angry that he almost lit up himself.

Wang Guilin and Zheng Yucheng were both stunned.

They were wronged.

"Chief, this is obviously done by Xie Kai himself, what does it have to do with us?" Zheng Yucheng was unhappy, "You can't give it to me if you think it's not suitable. Our 404 is living a good life now. The faster these projects develop, the more money they cost, I wish I could develop slowly."

"Yes, leader, we are now in a tight funding, developing too fast, and economic pressure is too great..." Wang Guilin was also impatient and even glared at Xie Kai.

This kid, if you want someone, don’t cause trouble on us.

"I'm still excited, right?" Long Yaohua was so angry. These guys were getting thicker and thicker, and they dared to threaten themselves.

Li Mingshan was also amused and crying while on the side. He knew that this matter had nothing to do with Zheng Yucheng and the others, but he was not satisfied with their attitude.

Long Yaohua was forced to do so. Within one day, Xie Kai asked about three groups of people, who were all experienced technical backbones. How many units could they bear it?

"Okay, Lao Long, let's go to the large press workshop with them and hold an on-site meeting." Li Mingshan reminded Long Yaohua.

Ma Fengshan and others pretended not to see the previous ones.

Now that the large press is produced, all project progress can be accelerated. The components forged by the large press need to undergo a lot of experiments to verify whether the design is reasonable and whether it can achieve the strength of use.

For example, the Yunshi aircraft can be commercialized as long as the structural strength problem is solved and the engine has no problems.

The main reason why the State Administration of Civil Aviation does not issue airworthiness licenses is that the main beams and frame beams of the entire aircraft are forged in sections and then welded together, which has a low structural strength and a short flight life.

With a large press, all this is effectively solved.

The 450,000-ton large press is familiar to everyone present. Successful trial production means that the design requirements can basically be met, but it is still uncertain whether the quality and life are guaranteed.

Tang Zhenhua proudly introduced the treasure from their unit to everyone.

There is only one unit in the country. Although there is only one equipment in its factory, it has become more valuable and there are many people serving this equipment.

"After inspection of the overall turbine disk produced by the test machine, the internal grain structure reached the expected, the material density, yield strength, tensile strength and other data were in line with expectations, and even a mass of about 10 higher than expected..."

Tang Zhenhua's data made everyone realize that large die forging machines will no longer be a bottleneck that restricts the development of the aviation industry.

"The pressure provided by the 450,000-ton die forging machine allows us to effectively solve the strength problem of the key stress structure on the Yunshi. Our fourth Yunshi is about to be completed. According to our vision, the main stress components on this aircraft are replaced by pressing and will be delivered to about 6 months late..." Ma Fengshan and Cheng from time to time inquired about some specific details and finally made a summary of the situation.

The details they understand are not the performance of the large press, but how much production capacity can the Xinyue Forging Press Factory arrange for them.

Most of the stress-bearing structural parts, main beams, frame beams, etc. on large aircraft are aviation aluminum 6065, which can be forged.

The heating temperature of aluminum is not as high-temperature alloy as that of high-temperature alloys. It is enough to have more than 400 degrees, and the production speed is faster.

Therefore, replacing the main stress-bearing structure of the aircraft that Xie Kai paid for privately can effectively improve the service life, which is much cheaper than re-producing one.

"What are the plans for the other aircraft that have cracked welds?" Li Mingshan asked.

"The main structure is re-produced, but this requires the engine to be completely fine before it can be carried out." Cheng replied from time to time.

A scrapped Yunshi had already been stopped in Qin Fei's test airport.

The one that is flying now is about to stop there.

"This is not necessary. The Iron Bird Test Bench we moved here has aged. If you modify it, you can create a more advanced Iron Bird Test Bench." Xie Kai said.

The technology of that Yunshi was already relatively backward.

Moreover, Xie Kai hopes that these transport aircraft can showcase the development history of domestic large aircraft.

"That's the matter later, let's not talk about this. Whether it can obtain the airworthiness permit from the State Administration of Civil Aviation is still a question. Now McDonald's aircraft is about to be delivered, which is very unfavorable to the development of Yunshi," said Li Mingshan.

The McDonald's aircraft was assembled at the Shanghai Stock Exchange's large aircraft factory. Because Xie Kai transported a large amount of technical information and technicians, the construction progress of McDonald's was much slower.

The contract signed by the State Administration of Civil Aviation and McDonald requires production in China to help China train technicians and workers for aircraft assembly.

Even so, their plane will be assembled soon.

"They are not a problem. The quality of our aircraft meets the design needs, which will put huge pressure on them. If McDonald wants to get more orders, either lower the price or provide more technology. This is a good thing for our domestic aviation manufacturing industry. Just helping us train skilled workers is enough." Zheng Yucheng smiled sinisterly.

Xie Kai made the arrangements there at the beginning, but it was decided with him.

If you want to poach people, you can poach people now. Maddao's production plants in China may even cause production to come to a halt due to the loss of a large number of skilled workers.

Such things cannot be used unless they are absolutely necessary.

"When we took over the Turbofan-6, we had completed many experiments, but we did not form batch manufacturing. Whether it is the overall turbine disc or the blade, it cannot be met due to the manufacturing process... Now that the large press is completed, there is only processing and manufacturing..." Sun Hong said.

The overall turbine disc was originally unable to withstand too high temperatures because of insufficient material strength.

Now, whether it is raw materials or forging technology, the requirements have been met.
Chapter completed!