"Young people, don't be too modest." The old man thinks that Yun Fei is being modest.

According to the current speed of the Jiuyi Research Institute, it is very likely that it will catch up with the level of foreign countries in more than ten years, and it may not take that long. In particular, Yunfei has always invested in the development of these technologies regardless of the cost, which is a condition that no enterprise has. Most foreign companies are joint-stock enterprises, and every technology investment needs to be authorized by the board of directors, and those shareholders do not necessarily invest in research projects that do not have much return on investment.

"Old man, this is really not modest. Technology research and development is already difficult, otherwise we have so many domestic companies, so many universities and scientific research institutes have not achieved much results for so many decades. Yun Fei said sternly.

Why did Taizu let the whole country enter such a state in his old age?

The slogan of catching up with the United States was put forward by Taizu, because he didn't know that the improvement of technology was originally a very slow process. What's more, the basic conditions at home are far worse than those abroad.

"This is our test workshop, covering an area of 2,000 square meters, with 54 CNC machining centers of various types, 39 CNC lathes, and a total of 67 other equipment...... It is mainly responsible for the manufacture of precision mechanical parts for all research projects of the entire research institute and the processing of some very precise parts. At present, the main customers are our next door aerospace group, Rongcheng 132 factory, Rongcheng Optoelectronic Research Institute, Southwest Nuclear Industry Research Institute and other research institutes with very high precision range and factories...... "The whole test workshop is actually a confidential machining workshop.

This is different from the ordinary precision machining workshop, Jiuyi Research Institute needs a lot of mechanical parts in the research process, after all, they are all single-piece small batch production, but in addition to their own business, all of them are for the super processing of precision mechanical parts. This is the current manufacturing capacity, technical equipment. Manufacturing experience, etc., can be ranked in the whole of China. The most ordinary workers are technicians, and senior workers are just apprentices in this, and the purpose of saving zài is to do miscellaneous and preliminary processing of some parts that require very high precision!

Although the equipment of this production workshop is not too much, and the number of personnel is not more than 200, the annual output value is more than 200 million yuan! The largest customer is the 132 factory, all kinds of test products, all kinds of products with high processing difficulty are thrown into this production workshop for testing the performance of equipment for outsourcing processing.

Especially in the aerospace next door, there are a lot of imported equipment in place every year, but it has never been able to get the top processing center abroad. Perhaps the technical level of their workers is no worse than that of the test workshop of the Jiuyi Research Institute, but their equipment cannot be compared with the test workshop of the Jiuyi Research Institute.

The workshop here was originally set up to obtain various numbers of machine tools during the machining process. Heavy-duty cutting tests, repeatability tests, etc., are the most basic of course, and there is no need to use such high-precision equipment and such experienced skilled workers.

"Yun Fei, you guy, you don't want to give up the OEM business for anything!" Upon hearing this introduction, Aunt Deng laughed.

Yunfei relied on Xinkai to rise, and Xinkaixing, up to now, is also based on machining as the main business, and the annual profit of this piece is more than 300 million net profits.

Aunt Deng smiled. It's not that I don't want to give up. These devices are constantly accumulating processing numbers in the process of use. In order to be able to provide the most reliable parameters for the new generation of equipment behind, all the technologies studied by the research institute were tested on these devices at the beginning, and only after verifying that there were no problems would they be handed over to the Jiuyi Research Institute for production.......

How well a device is performing. How much difference there is between theoretical design and practice, and how many functions of various designs can be realized, these need to be obtained in the processing process. Otherwise, the theoretical accuracy of the design is the accuracy produced by the machine tool. There's no technical difficulty at all.

"Elder Deng, are you here?" Deng Lanqing and Yun Fei took the old man and his party when they were about to walk to the area of several five-axis machining centers, and their heads were gray. Sun Lin, who had become thinner, appeared in front of the group.

"Academician Sun, you have come up with our own five-axis machining center for the Chinese, so that our country will not be blackmailed by foreign countries on this, which is amazing!" For this young old man, who was two rounds younger than him, the old man actually pushed away the old girl who was supporting him, and bowed deeply to Sun Lin.

The abnormal behavior of the old man made the whole workshop no longer have any sound except for the various harsh noises generated during the processing of machine tools.

Many people almost at the same time thought that if a few years ago, the old man might have said that he would be grateful to this lucky old guy on behalf of the country!

Seeing the old man like this, Sun Lin felt like he was trampled on a sore foot, and immediately jumped to the side, how many people in this country dare to accept the old man's bow calmly?

"Old man, this can't be helped, this is our job, not to mention, to be able to study the five-axis linkage of CNC machine tools, this is not by me alone, but by the entire project team, the whole company and even the country to research. Speaking of which, I am ashamed that the gap between the five-axis machining center we have studied and the top equipment abroad is still too big......" Sun Lin was moved to tears by the old man's behavior.

"What does a five-axis machining center look like, let's go and see!" The old man didn't have much to say about this.

But the tremor in his voice betrayed his excitement at this moment. When he was in power, the country's Dongfeng-31 missile, 052 destroyer, Yun-10 aircraft and other national strategic projects, all the research projects applied to the country for the same kind of equipment - five-axis linkage machining center!

At that time, China could not even produce three-axis machining centers.

Even if you organize a breakthrough, it is impossible to solve this problem in a short time. As the supreme leader of the country, the old man has negotiated privately with the Americans and the Japanese, and who can know the humiliation in the middle except for those involved?

Many people say, without a five-axis machining center, can't we make it?

Back then, there was no advanced equipment, no technical reserves, and even no supercomputers, so didn't we also get two bombs and one satellite?

If you use the experience of workers to process by hand, no matter how precise the parts in this world can be manufactured. China's two bombs and one star, all precision parts are basically deeply filed by those of China's top fitters with files in their hands. The Hangti 002 base is in the deepest part of Daba Mountain, the production workshop with the highest level of secrecy in China, basically there is no equipment, the average age of all the workers is more than 50 years old, no one in the outside world knows at all, these workers only have one equipment - files!

The file, which is the top artifact in the machinery manufacturing industry.

A missile air rudder can take hundreds of man-hours for a ninth-level fitter to be processed in the final process, and then, using a four-axis machining center, it only takes less than six hours! In the manual processing process, as long as any link goes wrong, all the hard work is in vain. However, this is not the case with machining centers. As long as there are no problems with sample processing, all parts can be machined to almost absolutely identical dimensions! This is something that cannot be compared to human power.

The more advanced the equipment, the higher the requirements for the accuracy of the key components.

Otherwise, the old man would be so excited?

At the top of the five-axis machining center area is a gantry-type machining center with two huge columns without a protective cover, with a table below that is more than two meters long and more than one meter two wide. The difference from other machining centers of gravity is that this workbench has a huge spherical connection like the ball head at the bottom of the steering lever of an automobile transmission and the connection between the transmission and the transmission, which is far larger than a person's head with the naked eye.

The sphere is directly connected to a small table with a diameter of more than half a meter.

On top of this workbench, there is a huge shelf, and the two ends of the shelf are pressed with a silver-white workpiece with a length of more than 1.8 meters and a width of about 600 millimeters. This is not the most important, the important thing is that the part is constantly turning slowly, and the small workbench driven by the spherical connection at the bottom is also constantly swinging back and forth, and the spindle on which the machining tool is installed is also constantly changing direction with the flipping of the workpiece......

Seeing this, most people who don't know what this is are have grown up their mouths!

"This is our largest five-axis machining center, which has just been converted from a gantry-type high-speed milling machine, and is currently processing the solid wings of the ARJ-21 that Yanlong Aircraft is about to undergo wind tunnel tests. Semi-finishing ...... is currently underway," Sun Lin pointed to the workpiece constantly rotating, the worktable constantly swinging, and the spindle also constantly moving up and down and swinging left and right.

"This is a five-axis machining center?" The old man's eyes were not very good, but when he saw that the huge machine tool was moving everywhere, he hurriedly put on the reading glasses hanging around his neck.

"No, this is a nine-axis five-linkage machine tool based on a five-axis linkage CNC machine. The largest table below is a section, the upper spindle is a functional part, and the intermediate attachment is also a system. This is just a conceptual model, if you remove the spherically connected accessories of that part of the worktable, this is just a four-axis gantry machining center......" Sun Lin said proudly. (To be continued......)