"Young man, don''t be too modest." The old man thinks Yunfei is modest.


    According to the current speed of the 91 Research Institute, it is likely to catch up with the level of foreign countries in more than a decade, perhaps not so long. In particular, the cloud has always invested in the development of these technologies without cost, which is a condition that no enterprise has. Most foreign companies are joint-stock enterprises, and each technical investment needs to be authorized by the board of directors. Those shareholders do not necessarily invest research funds in projects with little return on investment.


    "Sir, this is really not modesty. Technology research and development has been difficult. Otherwise, so many companies, universities and scientific research institutes in China have not achieved much in so many decades. " Yun Fei said seriously.


    Why did Taizu let the whole country enter such a state when he was old?


    The slogan of catching up with the United States in the Premier League was put forward by Taizu, which is because he doesn''t know that the improvement of technology is a very slow process. Moreover, the basic conditions at home are far worse than those at home and abroad.


    "This is our experimental workshop, covering an area of 2000 square meters, with 54 CNC machining centers of various models, 39 CNC lathes and 67 other equipment... It is mainly responsible for the manufacturing of precision mechanical parts for all research projects of the whole research institute and undertaking some very precision parts processing externally. At present, the main customers are aerospace group next door, Chengdu 132 plant, Chengdu photoelectric Research Institute, southwest Nuclear Industry Research Institute and other research institutes and factories with very high precision... "The whole test workshop is actually a confidential machining workshop.


    This is different from the ordinary precision machining workshop. There are a lot of mechanical parts needed by the 91 Research Institute in the research process. After all, they are single piece and small batch production. However, except for their own business, they are all aimed at the Super Machining of precision mechanical parts. The current manufacturing capacity, technical equipment, manufacturing experience and so on can be ranked No. 1 in the whole of China. The most common workers are technicians, and senior workers are just apprentices here. The purpose of their existence is to do chores and carry out preliminary processing of some parts with very strict precision requirements!


    Although there are not too many equipment and no more than 200 personnel in this production workshop, the annual output value exceeds 200 million yuan! The biggest customer is factory 132. All kinds of test products and products with high processing difficulty are thrown into the production workshop which is originally designed to test and test the performance of equipment for outsourcing processing.


    In particular, the aerospace next door has a lot of imported equipment in place every year, but it has not obtained the top processing center abroad. Perhaps their workers'' technical level is no worse than that of the test workshop of the 91 Research Institute, but their equipment can not be compared with that of the test workshop of the 91 Research Institute.


    The workshop here was originally set up to obtain various data of machine tools in the processing process. Heavy load cutting test, repeated positioning accuracy test, etc. the most basic nature is that there is no need to use such high-precision equipment and such experienced technicians.


    "Yun Fei, what are you doing? You don''t want to give up the processing business!" On hearing the introduction, aunt Deng laughed.


    Yunfei started with xinkaixing. Up to now, xinkaixing also takes machining as its main business, and the annual profit of this piece is more than 300 million net profit.


    "Aunt Deng laughed. It''s not that I don''t want to give up. Only by accumulating processing data during the use of these devices can they provide the most reliable parameters for the next generation of devices. All technologies studied by the Institute were tested on these devices at the beginning, and they will be handed over to the 91 Institute for production after verification that there is no problem... "Yun Fei is still serious.


    The performance of an equipment, the difference between theoretical design and practice, and how many functions of various designs can be realized, all of which can be obtained in the processing process. Otherwise, the designed theoretical accuracy is the accuracy produced by the machine tool, which has no technical difficulty at all.


    "Old Deng, are you here?" When Deng Lanqing and Yun Fei were about to walk to the five axis machining center area with the old man, Sun Lin, who was gray and thinner, appeared in front of the group.


    "Academician sun, you have created our own five axis machining center, so that our country will not be blackmailed by foreign countries. It''s great!" For the young old man who was two rounds younger than him, the old man actually pushed away the old girl who supported him and bowed deeply to sun Lin.


    This abnormal behavior of the old man made the whole workshop no longer have any sound except the harsh noise generated by machine tools.


    Many people thought almost at the same time that if a few years ago, the old man might say that he thanked the lucky old man on behalf of the country!


    Seeing the old man like this, Sun Lin jumped aside as if he had been trampled on his painful feet. How many people in this country dare to accept the old man''s bow?


    "Old man, this can''t be done. This is just our work. What''s more, we can study the five axis CNC machine tool, which is not by myself, but by the whole project team, the whole company and even the country. I''m ashamed to say that the five axis machining center we have developed is still too far from the top equipment abroad... "Sun Lin was filled with tears by the old man''s behavior.


    "What is the five axis machining center like? Let''s go and have a look!" For this matter, the old man didn''t have much language.


    But the trembling of his voice betrayed his excitement at this time. When he was in office, the country''s dongfeng-31 missile, 052 destroyer, Yunshi aircraft and other national strategic projects, all research projects applied to the country for the same kind of equipment - five axis linkage processing center!


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


    Even if the organization tackles key problems, 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 Americans and with Japanese. Who outside the world can know the humiliation except those involved?


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


    In those days, there were no advanced equipment, no technical reserves, or even supercomputers. Didn''t we also get two bombs and one satellite?


    If the experience of workers is used for manual processing, the most precise parts in the world can be manufactured. China''s two bombs and one satellite, all precision parts are basically filed out deeply with the file in the hands of China''s top fitters. Hangti 002 base is located in the deepest part of Daba Mountain, the production workshop with the highest level of confidentiality in China. Basically, there is no equipment. The average age of all workers is over 50. No one outside knows that these workers only have one equipment - file!


    File, which is the top artifact in the machinery manufacturing industry.


    For the air rudder of a missile, a nine level fitter may spend hundreds of man hours in the final treatment, and then it takes less than six hours to use the four-axis machining center! In the process of manual processing, as long as any link goes wrong, all efforts will be in vain. But the machining center will not have such a problem. As long as there is no problem with sample processing, all parts can be processed to almost absolutely the same size! This is what human beings can''t compare.


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


    Otherwise, the old man would be so excited?


    At the edge of the five axis machining center is a gantry machining center without protective cover and with two huge columns. The length of the worktable below is more than two meters and the width is more than one meter and two meters. What is different from other processing centers is that there is a huge spherical connection on the workbench, which is like the connection between the ball head at the bottom of the automobile transmission control lever and the transmission. With the naked eye, it is far larger than a person''s head.


    A small worktable with a diameter of more than half a meter is directly connected to the spherical surface.


    On this workbench, there is a huge shelf. At both ends of the shelf, a silvery white workpiece with a length of more than 1.8 meters and a width of about 600 mm is pressed with pressing plates. This is not the most important thing. The important thing is that the part is constantly turning slowly, and the small worktable driven by the spherical connection at the bottom is constantly swinging back and forth. The spindle equipped with processing tools is also constantly changing direction with the turning of the workpiece


    See here, most people who don''t know what this is have grown up!


    "This is our largest experimental five axis machining center, which has just been transformed from gantry high-speed milling machine. At present, it is processing the solid wings of ARJ-21 that Yanlong aircraft is about to do wind tunnel test. At present, semi finishing is being carried out... "Sun Lin pointed to the machine tool that the workpiece is constantly rotating, the workbench is constantly swinging, the spindle is also constantly moving up and down, and swinging left and right.


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


    "No, this is a nine axis five linkage machine tool based on a five axis CNC machine tool. The largest workbench below is a part, the spindle above is a functional part, and the accessories in the middle are also a system. This is just a conceptual model. If the spherical connection accessories on the workbench are removed, this is just a four-axis gantry machining center... "Sun Lin said proudly.