Abstract According to reports, the military industry has become one of the key application areas of domestic machine tools. This situation has indeed changed since 5 years ago. “Actually, in the machine tools purchased by the early military industry, the quantity and value of imported machine tools are far greater than domestic...
According to reports, the military industry has become one of the key application areas of domestic machine tools, and this situation has indeed changed since 5 years ago. "In fact, in the machine tools purchased by the early military industry, the quantity and value of imported machine tools are far greater than that of domestic machine tools. As the development of the military industry is related to national defense security, the country has gradually realized that there are certain risks associated with the import of machine tools, and technical blockade. And the monopoly leads to high procurement costs. At the same time, considering that the development of domestic machine tools also needs to be driven by key areas, the National Development and Reform Commission has proposed that the procurement of equipment in the military industry should be based on the development of domestic equipment manufacturing technology.†The person in charge said that "From this, the former Commission of Science, Technology and Industry for National Defense took the lead in establishing a long-term mechanism to promote the development of domestic machine tools. Every year, CNC machine tool application symposiums are held regularly, and various other activities are supported to support the domestic CNC machine tools. Application of the field." At the same time, the former Commission of Science, Technology and Industry for National Defense issued a "Several Opinions on Unified Purchase of Domestic Equipment for Military Construction Projects" in 2007, and formulated a series of incentives for the application of domestic CNC machine tools in the military industry in the form of administrative regulations. In addition, for the procurement of imported machine tools, on the basis of the evaluation of the consulting company, the Peaceful Use of Military Technology Association and the China Machine Tool Industry Association will jointly host a round of localization certification, and encourage military enterprises under the premise of ensuring the completion of military tasks. Purchase domestic CNC machine tools that meet production requirements.
The introduction of this policy has greatly promoted the application of domestic machine tools in the military industry. The number of domestic machine tools has changed subversively in the proportion of purchases. The proportion of imported machine tools has dropped from 90% to 20%, or even more. low. At the same time, due to the high requirements for CNC machine tools in the military industry, the technical promotion of domestic machine tools is more obvious, and the precision, digital and composite domestic CNC machine tools have developed better.
Although the application of domestic machine tools in the military industry has been greatly improved, it has been applied more in roughing or semi-finishing, and cannot meet the processing requirements of key components. In addition to restricting the reliability and stability of domestically produced machine tools, it is also an important factor to restrict the domestic high-end CNC machine tools in terms of reliability and stability.
The reliability and stability of the product is the most basic requirement, and it is also the most concentrated problem reflected by military users. Of course, this is not solved in the short term. “As long as it can meet the requirements of individualized processing, military enterprises will not refuse to use domestic CNC machine tools because of reliability problems.†The person in charge said that CNC machine tools used in the military industry are becoming larger, more sophisticated, digital and complex. With the development of the direction, the demand for high-speed and high-precision multi-axis linkage machining centers has increased year by year, and this type of domestic machine tools is currently the first set of products, the market application is immature, and the failure rate is high. “Domestic companies should pay attention to the assembly and testing process. Although some domestic machine tools also use good imported functional components and numerical control systems, the assembled machine tools still have a high failure rate. Many machines are not tested after assembly, so many machine tools Although the factory specifications are qualified, there are often problems after running for one month."
The lack of service is another important factor. It is understood that many military enterprises are very dissatisfied with the service of domestic machine tool enterprises. The single means and lack of service personnel skills reflect the most serious problems. Each maintenance cannot guarantee one time. It is the most unacceptable for military enterprises that have completed the task with quality and quantity.
What is gratifying is that a number of demonstration application projects including Shenfei, Chengfei and CSIC are being implemented intensively, using domestic machine tools to build a new production line, which will improve the application level and efficiency of the equipment.
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