"What''s more, five axis is the most competitive market in the world..." Yun Fei mainly focuses on the high-end CNC market.


    For a long time, China has been a big importer of these top equipment manufacturing industries. Basically, there is no export. The three-axis machining centers exported are also because of their low price and poor performance. A large part of their exports are exported by Taiwan CNC machine tool factory, and there are not many domestic exports.


    The export of low-grade CNC machine tools does not make much profit, and the competition is still fierce.


    The profit of high-grade CNC machine tools is the biggest. The 91 Research Institute now produces a five axis machining center for testing, with a cost of about 3 million. If mass production is carried out, it can be controlled within 2.2 million. The lowest price in the market is 15 million, or about two million dollars.


    Besides, it''s just a woodworking machine. That is, the light five axis CNC machining center, and the Jiuyi Research Institute laid out the heavy five axis machining center at the beginning.


    These prices are based on different models, with different prices. Large, high-precision, often tens of millions of dollars. When China just joined the World Trade Organization in 2001, in order to develop j-20 aircraft and mass produce J-10, Chengdu 132 factory imported a five axis five linkage, X-axis travel of 10 meters and y-axis travel of 2.4 meters from the United States. The straightness within the processing range is 0.18, the repeated positioning accuracy is 0.04 mm, the processing accuracy is 0.05 mm, and the price is 40 million US dollars!


    This is the most expensive CNC machining center purchased in China.


    According to professional speculation, the production cost of this equipment will never exceed $6 million.


    This is the price of technology.


    As soon as China''s five axis machining centers are listed, the five axis machining centers all over the world have to cut prices. This is a very normal thing. The five axis machining center produced by 91 heavy industry will not be announced until Hannover, Germany, participates in the exhibition.


    What they have to do is to catch the top powers of CNC machine tools such as the United States, Japan and Germany by surprise.


    "Let''s go to the finishing workshop to see the use of those five axis machining centers." Some of the equipment studied by Jiuyi Research Institute were dragged to their production workshop by factory 132, and others with better accuracy were in the production test workshop under Jiuyi Research Institute.


    This workshop not only manufactures various experimental products of the Research Institute, but also undertakes difficult processing business outside.


    This workshop is the top processing capacity of the whole Jiuyi group, and perhaps the first-class machining workshop in China. Many high-precision and complex parts of the test prototype in plant 132 are processed in this workshop. Some super parts of aerospace next door are also processed in the test workshop of 91 Research Institute.


    Except for young apprentices, any type of work here is the most skilled and experienced in the whole 91 Research Institute. Moreover, in order to ensure that the technical level of the workers here is the top of the whole group company, the company will conduct a technical competition every year in June.


    Different levels of technical workers, the employees in the production experimental workshop under the research institute are the challenge masters, and accept the challenges of the front-line production technical workers in the workshop.


    This is also equivalent to a promotion path for the skilled workers of the whole group company.


    Xinkaixing''s technicians will also participate in the martial arts competition. Every year, this martial arts competition is the most lively, even higher than the level of various national skill competitions. China''s top skilled workers have been dug up by Yunfei. And they pay more attention to the training of skilled workers than any company.


    Skilled workers will never be promoted to the management level because of their good skills, unless those top skilled workers who are about to retire are usually responsible for patrolling the production workshop and providing technical guidance.


    It is an indisputable fact that the wages of skilled workers are higher than those of managers.


    "Boss, why do you have time to come today?" As the director of the machining and finishing workshop of the original Jiuyi heavy industry, Fang Qiang was in charge of the two finishing workshops of Jiuyi heavy industry and the production test workshop of the research institute because of his outstanding personal ability.


    During this time, because the whole research institute was engaged in public relations, five axis linkage and auto production lines and supporting robots, he, the workshop director in charge of several workshops, devoted his main energy to the production test Workshop on the side of the Research Institute.


    It is to ensure that the parts needed by researchers are processed at the first time.


    The cost is not considered at all.


    The whole production workshop is guarded by on duty personnel 24 hours a day.


    "How about looking at the production of those five axes? Is there no big problem? " Yun Fei nodded to Fang Qiang.


    During this period of time, because of tackling key problems, these technicians and managers are wearing two dark circles and lack of sleep. After all, this project is too important, and everyone knows how much benefit it can bring when the old man is satisfied with it before he comes to visit.


    What''s more, boss Yunda gave orders himself.


    "In addition to the unstable processing quality for some time, the quality is still relatively stable after the running in period. The only problem is that the consumption of tool wear is too fast..." Fang Qiang accompanied Yun Fei and Sun Lin to the gantry five axis machining center with the three meter guide rail on the edge, while talking to Yun Fei about the problems they encountered.


    "Tool consumption? Is it wearing out too fast or? " Yun Fei asked suspiciously.


    The investment of 91 materials in cutting tools is not small. In particular, the research on nano cubic boron nitride began many years ago, far ahead of many domestic tool factories.


    "The main reason is that the processing time is too long, our tools can''t bear it, and the effect of imported coated tools is not too ideal..." Fang Qiang explained to Yun Fei.


    He knew that Yunfei knew these things better than he did. Because Yunfei itself is a professional in machining.


    "In other words, the tool is not wear-resistant enough and the service time is not long?" Cloud directly grasped the key point, "what is the coating thickness of our tools?"


    In machining, production technology and process equipment (including equipment, tooling fixtures, cutting tools, etc.) are very important. The most important thing is the equipment and tools. The parameters contained in the processing program are also very important. For the processing of complex products, these data are confidential in many top manufacturing companies.


    Those who sell machine tools and equipment must test these data, and then give the customer a parameter range, so that the customer can give full play to the best performance of the equipment, otherwise who will buy your equipment next time?


    "Two to three wires have been thickened. There is no problem with dry aluminum alloy, but titanium alloy, superalloy and stainless steel are not good at all. All kinds of experiments on cutting parameters have been tried... "Fang Qiang said with a sad face.


    "In this way, it is not clear whether the quality instability is caused by the tool or the defects of the machine tool itself? Have you done the statistics of cutting tools? " Yun Fei nodded and asked.


    Coated cutting tools need different materials to process different materials. Some use tungsten carbide, some use cubic boron nitride, and some use other superhard coatings. These are to increase the service life of cutting tools and improve the efficiency of NC machining.


    From the very beginning, Jiuyi material factory has been studying nano coating material technology from a strategic perspective. It also began to make breakthrough progress in 1998. Up to now, these technologies have not been completely stabilized.


    The main profit source of Jiuyi materials lies in ordinary high-speed tool steel tools and cemented carbide business. Coated tools and advanced material tools such as cubic boron nitride, artificial diamond tools and ceramic tools have not achieved much in the market.


    "The partition data statistics of tool service life have been done all the time. After all, the degree of wear is very slight, especially for processing easy processing materials such as aluminum alloy, the tool will not have too much wear, but the processing quality still has two or three wire fluctuations..." Fang Qiang shook his head and said to Yun Fei.


    "Aviation aluminum is also relatively hard. Is it possible that the tool is worn? Use the side edge or bottom edge of the tool? " Yun Fei asked with a frown.


    If the tool is not worn and the machining quality fluctuates in this range, it shows that the accuracy of the machine tool itself is only two to three wires. For ordinary products, this accuracy is really enough. However, for cutting-edge manufacturing industries such as aviation industry and aerospace industry, this is only the level of semi finishing.


    "Both the bottom edge and the side edge have been tested..." Fang Qiang naturally knows what Yun Fei means. They also hope that it is the problem of the tool, not the accuracy of the machine tool itself. So they don''t have to work overtime day and night.


    Hope is beautiful, but reality is skinny.


    Yun Fei took a deep breath and always felt that something was wrong.


    "These equipment were transformed from the first batch of prototypes, and the spindles were replaced before tackling key problems. The control system and control mode have also been changed. Because we want to obtain more and more detailed processing data, we have not further upgraded the CNC system..." Sun Lin''s words let Yun Fei breathe a sigh of relief.


    If it is this precision, this thing really can''t be taken to the machine tool exhibition in Germany this year.


    "The latest equipment hasn''t been assembled yet?" Yun Fei turned to Sun Lin and asked.


    "Well, that''s the one. It''s being debugged. It''s just starting to set various parameters and track running in. The machining accuracy of that one should be controlled to within five... "Sun Lin said, pointing to the gantry machining center not far from the front that has not been sprayed with paint.