No, an old engineer with a hot temper stood up directly, glanced at Liu Feng, and said unceremoniously:

"It's not that we shirk responsibility, our five-axis CNC center has represented the most advanced level of Huaguo machine tool industry! We have seen the drawings, the machining accuracy is not more difficult than the J-20 vector engine, and we are also in strict accordance with the corresponding standards to operate, there is no reason to even the accuracy of the vector engine can be achieved, and this thing, but there is always a problem!"

"Therefore, the reason is obvious, either the materials you provide are not qualified, or your design is immature and cannot meet the design requirements at all!"

"Who are you?"

"This is Cao Wansheng Cao Lao of our machining center, the top expert of the five-axis CNC center, and the ...... of level 9 lathe," the person in charge introduced to Liu Feng with a wry smile.

Level 9 turner?

Liu Feng was stunned, this is a national treasure-level bull B character!

No wonder the temper is so hot......

"Cao Lao, there should be no problem with the design drawings and materials. ”

"Then what do you mean, there is a problem with our processing center?" the old gentleman sneered, "In that case, you should ask for another master, maybe the people of country M and country D can process your thing." ”

Liu Feng: "......"

What a big temper!

Seeing that Liu Feng was so stunned that he couldn't speak, Academician Chen Xuedong on the side hurriedly spoke:

You also know that in the high-end equipment manufacturing, we are indeed much worse than the European M, especially the high-end machine tools, the same five-axis CNC center, the processing accuracy of others is indeed much higher than ours. ”

Truly.

On the surface, Huaguo has become the world's largest machine tool producer, and the output value of machine tools has become the world's first in 09 years, and has maintained the world's first place in these years, but in fact?

Last year (13 years) China's total imports of machine tools were about 10.1 billion US dollars, but the total export value was only 2.7 billion, can you imagine, a country known as the world's first machine tool country, the total import of machine tools is 4 times the total exports!

What's the problem, isn't it because we export low-end products, and import high-end CNC machine tools?

Especially when the five-axis CNC center is not sold to us, there can be such a huge supermarket!

Although Huaguo can also develop its own five-axis CNC center to solve the problem of whether there is or not, the gap with foreign countries is quite obvious, especially when Europe and M already have a higher-end seven-axis CNC center......

"The problem of machine tools doesn't make sense, after all, we can even process vector engines with stricter precision, and there's no reason why we can't meet the standards when processing these things of yours!" said another old gentleman with gray hair.

"This is Qian Gaoxuan Qian Lao, and he is also our top expert, a level 9 fitter ......," the person in charge continued to introduce with a wry smile.

Chen Xuedong glanced at him curiously, he didn't expect that there were so many top technicians in the 606 Institute, and his heart was suddenly a little empty, could it really be their reason?

"Well, not necessarily, after all, our design and vector engine are still different......"

"It's clear that there's something wrong with your materials!"

"It's ridiculous, I really can't understand it, we can process materials with higher precision, how can we put it on your thing, and it has always been unqualified?"

"That's right, although our five-axis machining center is worse than that of Euro M, it is enough for us to use ourselves, and it is definitely not the reason for the machine tool!"

directly scolded Chen Xuedong speechlessly.

Seeing that the situation was developing in the direction of getting out of control, the person in charge opened his mouth, but there was no way to control the field at all.

"Ahem, let me say a few words. ”

At this time, it was Academician Qiao who stood up.

After all, he was the person in charge of the 606 Institute, and after seeing this old gentleman, the vast majority of people standing here calmed down the voices of discussion with great face.

This engine is related to the national aerospace project, and to some extent, it is even more important than the J-20, so I hope that everyone will not shirk their responsibilities, find the root cause and solve the problem realistically, and ...... solve the problem."

"That's right," Huang Qihui also stood up at the right time, and he also had a headache just now, "I understand your old gentlemen's feelings about our five-axis machining center, and I can't tolerate the slightest doubt from others, and I also understand Professor Liu's confidence in yourself, but to do knowledge, in the end, you still have to seek facts, everyone has a friendly discussion, and a friendly discussion ......."

In the processing center, whispers suddenly sounded.

After hearing the words of the two, many people were a little unhappy, the two of you are your own people from the 606 Institute, why did you also support outsiders?

What Professor Liu, what about the dynamite prize winners?

It's not a machine tool, can you know better than them?!

However, Liu Feng, who was also listening, was not unhappy.

Facing the doubts of these old gentlemen, Liu Feng shrugged his shoulders and did not change his confidence at all: "In this way, I don't know the situation here, let's process it again on the spot, maybe it is because of other reasons that have not been discovered?"

Mr. Cao smiled angrily and said: "Okay, well, if you can really find other reasons, or simply because of our processing center, I will immediately worship you as a teacher!"

"Then you don't have to," Liu Feng smiled, sighed and said, "You can almost be my grandfather, but I don't dare to be your elder." ”

"Hmph!" the old gentleman snorted coldly, "Don't talk nonsense, I'm willing to lose the bet!"

"Time waits for no one, now is it!"

"Okay, I'll let you die!"

Saying that, the old man turned on an idle five-axis CNC machine tool, ordered someone to prepare the materials, and skillfully operated them.

Of course, several other old experts nodded straight at it, as for Academician Qiao, the person in charge of the processing center, Mr. Huang and Chen Xuedong and others, they were naturally full of wry smiles, and they were really hot-tempered, and they started to do it without saying a word!

But there's no way to stop it.

However, just as the old man finished the test run and was about to put the materials on the operating table, Liu Feng suddenly shouted: "Wait!"

"What's the matter, there's a problem?" Cao Gong frowned and turned his head, "Don't worry, if there is a problem with the operation of the machine tool or the program, they will not cover me." ”

"The operation level of the masters, I still believe that there is no problem," Liu Feng smiled, but secretly complained in his heart, even if there is a problem, we can't understand it, it's not what you say?

Of course, they are all top-level masters, and they should not make such low-level mistakes.

He continued: "I want to see your processing materials first. ”

"Okay, see for yourself!"

"This should be the production material of the number one large piece, right?"

Liu Feng muttered to himself softly while checking the materials on the loading table.

No. 1 large piece, which is the most critical "carbon layer" structure of "carbon sail", is a large curved surface that is approximately elliptical, and the surface tolerance needs to be processed to the extent that it is less than a trace, after all, it is necessary to apply a layer of U-235 coating on it, and the requirements are naturally quite strict, so it is also the large piece with the most "problems" in the five-axis machining center.

"That's right, that's it. Cao Gong nodded.

"Well, well, I'm fine. ”

After carefully observing for a while, Liu Feng nodded and confirmed.

His current ability has already reached an unbelievable level, and he only needs to "look" at it to feed back the microscopic condition of the material into his mind, which is many orders of magnitude more accurate than the most advanced scanning tunneling microscopes and any other means of detection.

Just now he has confirmed the state of the "carbon layer" structure, which is fully in line with his original design requirements for this material.

However, according to these top machining masters, it is unlikely that the problem is the machining operation, so what is the problem?

……

It is no exaggeration to say that after so many failed processes, the cost of each component of the antimatter engine prototype has reached an unbearable point, at least, the price is not lower than the same weight of gemstones!

It can only be said that as the crown of human industry, the engine is the flower of industry, and its processing difficulty is really well deserved.

Of course, engaging in scientific research is burning money, and both Liu Feng and the senior management have been prepared for this, so even if the antimatter engine project burns money faster than the power generation project, no one has said anything.

At the very least, compared to the huge investment in aircraft engines that has been going on for decades, the development of antimatter engines is already extremely "cheap".

Beijing Power Research Institute.

Standing in the workshop of the assembly center, the moment he saw the parts transported back from 606 gradually assembled into finished products, Chen Xuedong finally couldn't help but stand on the loading platform, stroke the pulse energy engine that exuded a dark and shiny luster on the platform, and let out a sigh of emotion.

"It's not easy. ”

Standing under the loading platform, Liu Feng also nodded approvingly:

"It's not easy. More than 50 billion yuan has been invested before and after, nearly 3,000 supporting manufacturers, and more than 100,000 people have worked together, and the 606 institutes have piled up scrap materials to form a gold mountain, which has successfully made such a prototype! If I had been given another chance, I would never have wanted to make such a thing again. ”

That's right, in order to get this thing out first, he almost mobilized the elite forces of the entire power engineering research institute, and even the research and development progress of the high-energy particle engine had to be postponed for this, and the entire power research institute, from him Liu Feng to the most ordinary researchers, has hardly slept a full night in the past few months!

Is it easy for them?

Academician Jin Donghan on the side also sighed: "Yes, it's not easy, but our efforts are worth it." With this thing, the future is firmly in our hands! Honestly, it's unbelievable that we were able to build this thing in just nine months!"

Chen Xuedong didn't speak, but the expression on his face was not much calmer than this.

Compared with Jin Donghan, who has been engaged in engine development from the beginning, he can feel the luck and full sense of accomplishment from this moment.

If Liu Feng hadn't thought of him at the beginning, or if he was about to make a mistake when he chose, he wouldn't know where the harvest was sacred!

At this moment, for Liu Feng, in addition to being full of admiration, his heart is full of gratitude, grateful for his kindness, grateful to him for allowing him to experience all this, if it weren't for the fact that the last step of the "test drive" was not completed, he would have pulled Liu Feng to drink and celebrate together!

Reading the dreamlike touch from the faces of the two academicians, Liu Feng shook his head and said:

"It's been almost a year, and I can only say that I am barely qualified. With such a big investment, and so many bigwigs tackling key problems together, it has dragged on for so long, it seems that it is because our basic industry is too weak, big but not strong!"

"If it was replaced by the seven-axis linkage CNC center of the M people, maybe there would not be many twists and turns from the day the drawings were determined, and people could directly find the problem when processing materials, where would so many things happen!"

Chen Xuedong also nodded, he went to the 606 Institute with Liu Feng, and witnessed with his own eyes how the "problem" that seemed to have no problem on both sides was solved, and naturally understood what Liu Feng was talking about.

"There is no way, the foreign precision machine tool manufacturing industry has entered the micro-nano era, and can also integrate information technology, system control technology, electronic technology, optoelectronic technology, communication technology, sensing technology, software technology and expert systems. However, in our country, even ordinary machine tools have not yet fully achieved the era of low-end CNC integration, and as early as the 80s, people in Europe, M, and Toray have already done it!"

"In the development of high-end CNC machine tools in the key technology, such as high-speed, high-precision motion control technology, dynamic, hot comprehensive compensation technology, multi-axis linkage and composite processing technology, intelligent control technology, high-precision direct drive technology and reliability technology, etc., combined, we are at least 30 years behind the Western countries!

"Really?" After hearing Academician Chen's emotion, Liu Feng hesitated slightly, glanced at the engine, and said after thinking seriously for a moment, "I think that compared with the pulse energy engine, the development of high-end machine tools is relatively simple." ”

Chen Xuedong: "......"

Kim Donghan: "......"

In a sense, the person who dares to make such a bold statement, it seems that this guy is the only one on the earth.

said such a thing, in fact, it was not that Liu Feng was bragging B, but that there were facts as a basis.

High-end machine tools, especially such as five-axis linkage CNC machine tools, its advantages over other low-end machine tools, nothing more than reflected in the processing efficiency and machining accuracy;

As for how to solve the machining accuracy and life of the machine tool, this is an extremely complex problem, but for Liu Feng, he has two tricks!

Because, in addition to the design of the machine tool, the fundamental reasons that affect the machining accuracy and life of the machine tool, sensing technology and machine tool materials, can account for at least 80%!

For example, when Cao Gong was processing the "carbon sail", the domestic five-axis linkage CNC machining center would cause a slight amount of elastic deformation of the acceptor material due to the cutter head material.

And such elastic deformation, in the processing of other materials but rarely appear, or appear is still within the tolerance range, no wonder several masters have always said that the reason for the "carbon sail" material!

After all, on the surface, isn't that what it is?

No one found out that the cutter head material had such a big impact, but blamed the unqualified processing material.

However, if the sensing technology of the domestic five-axis linkage CNC machining center can be upgraded to a level, at least to the extent of the legendary seven-axis linkage machining center, it is theoretically possible to find these problems, and then develop the appropriate cutter head, everything will be solved.

One move is discovery, and the other move is to solve the fundamental problem from the material, which is very difficult for Liu Feng, a master of materials science who has mastered the microscopic world?

So, what happened in 606 that day......