Ariksai did not deny the results achieved in China, but in his opinion, this was far from enough. He said that at the peak of the Cold War, although the Soviet Union was limited to its own technical conditions and insufficient funds, and in the field of naval and air force, which was the most concentrated in high-tech, it was always in the process of catching up with the United States' military technology, but with the efforts of Soviet scientists and technicians, it has not been too far away.

Ariksai cited the most representative fighter jets as an example. After World War II, the United States and the Soviet Union developed a total of four generations of fighters. Except for the first generation of jet fighters who were experimental jets, the Soviet Union had a slightly superior position, with the development of new aviation technologies such as turbofans, avionics, and aerodynamic performance, the technical level of Soviet fighters gradually lags behind the United States. For this reason, the Soviet Union had to choose to launch the same fighter jets a few years later than its opponents to carry out targeted catching up. However, in the process of catching up, the Soviet Union was not limited to simple imitation, but tailored its own strengths and avoided its weaknesses according to its own conditions.

For example, in the competition for the second-generation fighter jets, the Soviet Union used the combination of nose air intake and rectifier cone or pushed turbojet engines to develop a batch of fighter jets represented by the MiG-21 and MiG-25, which achieved better high-altitude and high-speed performance than American-made fighter jets. At the same time, through efficient systematic design, its advantages in high-altitude and high-speed have effectively made up for its limitations in avionics, radar and military equipment.

The third-generation fighter jets represented by MiG-29 and Su-27 were only 10 years after the birth of the US third-generation fighter jets represented by F-15 and F-16. If the U.S. Navy's F-14 fighter jets are included, this gap will be even more obvious. However, the Su-27's good aerodynamic performance and close-range air combat capabilities still surpass the F-15, becoming a classic work of the third-generation fighter jets.

At present, if China wants not to be too far away from the United States, it must learn from the experience of the Soviet Union and compare its potential competitors at the highest level of military level in the world. It is clear that its technical level will remain large in the long run. It must choose certain areas to focus on breakthroughs and improve itself in the process of catching up. It must not only have the determination to catch up, but also use great perseverance to develop one or two trump cards to deal with the opponent's weaknesses.

Moreover, there are still considerable disadvantages compared to the Soviet Union coming to China. During the Cold War, the Soviet Union pursued "catching-up growth" with prerequisites. That is, individual technologically advanced and excellent system engineering are indispensable. In the process of developing the second-generation fighter jet, the Soviet Union developed the turbojet engine with the largest thrust (although the engine life is not satisfactory), and in the process of developing the third-generation fighter jet, it perfectly applied the wing body fusion technology on heavy fighter jets for the first time, and integrated it with the turbofan engine with high thrust.

Compared with the Soviet Union's war-training during World War II, it had strong military machines and certain technical reserves. When the founding of New China, most of the military-industrial system was built later by the Soviet Union and was interrupted for a period of time due to the **, and its foundation was much worse than that of the Soviet Union.

For China, it is not lacking in excellent system engineering capabilities, but the problem is that it is difficult for China to obtain an advantage in individual technologies that can significantly improve overall performance. This can easily cause China to fall into a vicious circle of bottlenecks in individual technologies. Therefore, if China wants to narrow the gap with the world's advanced level in the short term, it will undoubtedly have to make more efforts than the Soviet Union that year.

Ariksai believed that the use of Soviet secret files to the *** worker only shortened half of the technological gap with foreign countries for decades, and the remaining half had to be completed by one's own efforts. Of course, it was not that darkness made people desperate, and there was always a dawn ahead. Ariksai said with gratitude that unlike the closed system of the Soviet Union during the Cold War, through reform and opening up, China has been deeply integrated into the supply chain of large-scale international division of labor, and has been able to get in touch with many high-tech technologies that were previously blocked, better than before, when they were blinded, they could only work behind closed doors and study on their own. As China's reputation as a major manufacturing country rose, many basic manufacturing technologies have quickly caught up with the international level, and even high-end CNC machine tool technology left a deep impression on Ariksai.

After World War II, due to the rapid advancement of electronic technology, the world's manufacturing industry brought the largest technological revolution since the invention of steam and electricity. When traditional manufacturing machine tools and computer chips were combined, both processing accuracy and processing efficiency were greatly improved. In 1958, when the first CNC machining center was born in the United States, it immediately attracted the attention of the world's major industrial powers. In order not to be abandoned by a new round of technological waves, the United States, Japan, Germany, Italy, France and other countries all joined the research and development of CNC machine tools, and quickly had their own unique secrets and became a major country in the field of CNC machine tools. Due to the monopoly position of Western countries in this field, the root of Western weapons being better quality and more exquisitely shaped than Soviet weapons was laid out from here.

Speaking of this, Ariksai talked about a famous case in the Cold War to illustrate the importance of CNC machine tools. Several other people also came from intelligence and learned a lot about this Cold War secret and listened with relish. In the U.S.-Soviet Navy, early Soviet nuclear submarines were always at a disadvantage, mainly because the Soviet submarines were extremely noisy, so that NATO's underwater listeners could always take the lead in grasping their whereabouts. The US Navy boasted that it could measure the position of Soviet submarines 200 nautical miles away and track them. The Soviet army realized that if it did not try to eliminate submarine noise, no matter how many submarines were built, once the war broke out, the main submarines of the Soviet Navy would not escape the fate of falling into the sand.

The noise of modern submarines mainly comes from the internal machinery and thrusters of submarines. Since nuclear submarines cannot shut down the nuclear reactor, the internal mechanical noise reduction space is not large. It is generally believed that 90% of the noise of a nuclear submarine comes from the thruster, which is an important signal source for anti-submarine detection. If you want to produce advanced propellers with small vortex and low noise when propelling underwater, and it is difficult for the other party's sonar to detect, you need high-precision CNC machine tool processing. The United States and other Western countries have been strictly preventing the flow of relevant propeller blade processing technology into the Soviet Union based on their own safety interests. In order to change this unfavorable situation, the Soviet Union mobilized many forces, especially using intelligence agencies, to try every means to obtain CNC machine tools for manufacturing submarine blades from Western countries.

In 1979, the Soviet KGB finally successfully convinced Japan's Toshiba to sell 4 large 9-axis CNC large marine propeller CNC machine tools to the Soviet Union at the risk of an international blockade. The effect was immediate. From 1975 to 1985, the noise of Soviet submarines was reduced by 30 decibels. In 1986, the noise of the new nuclear submarine equipped by the Soviet Navy was only 10% equivalent to the previous nuclear submarines, which shortened the distance of the US Navy's detection of Soviet submarines from 200 nautical miles to 20 nautical miles, resulting in multiple collisions in the US and Soviet nuclear submarines due to being too close.

The obvious progress of Soviet nuclear submarines in noise reduction shocked the West. After a thorough investigation by the Americans, who were extremely annoyed, they found that it was Japanese allies stabbed in the back, and they were so angry that they forced the Japanese to investigate the matter severely. As a result, the police searched Toshiba Company, which paid a huge fine for this. The Japanese Prime Minister also personally apologized to the Americans. This was the sensational "Toshiba Incident" in the 1980s.

CNC machine tools are a mechatronic integrated product with high efficiency, high precision and high flexibility. It uses digital signals to control the machine tool movement and processing process through servo mechanisms, so that the machine tool can automatically complete the processing of parts. According to different processing requirements, CNC machine tools can achieve different configurations, such as: three-axis two-linking, three-axis three-linking, four-axis three-linking, five-axis four-linking, six-axis five-linking, seven-axis five-linking, nine-axis five-linking, and thirteen-axis five-linking, etc. During the Cold War, the "Paris Coordination Committee" led by the United States stipulated that CNC machine tools with machining capabilities of more than 3 axes belong to strategic materials and are prohibited from exporting to the Soviet Union, Eastern Europe, China and other countries.

Now five-axis linked CNC machine tools have become the iconic device of CNC technology. The so-called "Cox Report" prepared by the US Congress a few years ago is an attempt to impose sanctions on my country's import of 16 such old machine tools. However, by the use of Chinese scientific researchers, foreign technology blockade has been basically broken.

At the 2001 International Machine Tool Exhibition (cimt), China exhibited a variety of high-end CNC equipment in one go, including CNC five-axis linkage heavy-duty floor-standing boring and milling machines, heavy-duty composite turn and milling machines, gantry milling and boring machines, composite machining centers and other equipment, which were publicly sold to the outside world, shocking the world.

At the new exhibition not long ago, Chinese companies further launched a variety of domestic CNC five-axis linkage machine tools, including three widely used heavy-duty gantry mobile five-axis linkage boring and milling machines. Among them, the nine-axis five-continuous turning and milling composite CNC machine tools launched by Xingchen Manufacturing Northeast Xingcheng, which excited the professional audience present.

This product can control the movement of three linear axes and two rotating axes simultaneously, so that tools and workpieces can be cut and processed according to the prescribed motion trajectory, and are suitable for processing parts of complex profiles such as blades, propellers, and wings. It enables high-precision complex profile parts in military manufacturing industries such as shipbuilding and aerospace, such as high-precision complex profiles, such as engine blades, impellers and high-precision complex molds, to be easily solved.

At the exhibition, the organizer also announced that my country can manufacture 1,500 CNC machine tools, covering super heavy duty, high-precision, special processing, forging equipment, cutting-edge high-tech machine tools and other fields, and is on par with the United States, Japan, Germany and Italy. Now, let alone five-axis linkage, even nine-axis linkage machine tools have been created. The boss of a German company participating in the conference failed to exhibit high-end equipment of the company due to domestic policies. After seeing this situation, he complained and believed that the government was simply self-hard.

The previous chapter was reviewed and delayed for a day. I tried my best to make up for it this week. I once again shamelessly asked for monthly and recommendation votes!!!
Chapter completed!