Military Industry of Great Powers: Build the Strongest Flanker

"Expensive?"

Well, if the big boss said it was expensive, it must be very expensive. Mr. Mu shook his head helplessly.

Zhao Guoqing smiled and said: "Of course, there are cheaper solutions."

When xkz001 was originally designed, based on the three-micron manufacturing process, the designed fire control computing chip was 16 bits, and the bus was 32 bits, which made subsequent upgrades possible.

Change to a new computing chip, change the microcode in the CMOS chip, then change the fire control calculation program, and add the calculation of the radar echo sharpening characteristic value.

To put it simply, the radar antenna receives a composite wave composed of its own echo and the enemy's interference wave at the same time, and through signal calculation, it distinguishes its own radar echo from the composite wave.

Mr. Mu asked: "Can we catch their early warning aircraft?"

Zhao Guoqing shook his head and said: "At least five planes are targeting it from different directions, and there is a 70-80% chance of catching it!"

The interference wave power on an early warning aircraft is dozens of times that of a fighter aircraft, which can blind the antenna or simulate the illusion of multiple fighter aircraft attacks. It is not so easy to lock on the active phased array, but it is also difficult.

Mr. Mu smiled and said: "At least I am not without the strength to fight! Mr. Zhao, how much money do you need? I will take care of the project!"

Zhao Guoqing shook his head and said: "There is no need to establish a project. The modification fee is about 500,000 yuan per unit. You can directly upgrade the equipment!"

"Okay, I'll do as you say. When will it be ready?"

The Air Force's demand for equipment is endless. Look, it's urgent again.

"Two or three months!" Zhao Guoqing said.

"good!"

…

Zhao Guoqing came to AVIC in the afternoon. Mr. Sun, Chief Engineer Tu, and Zhao Zhongshu were still holding a report meeting. They invited Zhao Guoqing to participate. Teacher Xiao Zhao shook his head and refused.

Zhao Guoqing said to Zhao Zhongshu: "General Master Zhao, how long will it take for you to go back?"

"It will take about three or four days. There will be a seminar after the briefing!"

Zhao Guoqing said: "Okay, I'll go to Chengdu first. I have to visit the 517 Factory!"

Zhao Zhongshu understood that it must be about the five-axis machine tool. He nodded and said, "Stay a few more days. When I get back, I have something to discuss with you!"

"Okay, then I'll wait for you in Chengdu!"

Zhao Guoqing got on a plane to Chengdu in the afternoon and arrived at Factory 517 in the evening.

The backbone of 102 are all here, as well as Shanghai Microelectronics, Shanghai Precision Processing Factory, 217th Institute of Science and Technology and other units.

The five-axis machine tool has been dismantled into parts, and the assembly numbers are placed in prescribed places. Many of those parts have been destroyed, and the composition and mechanical properties need to be determined. This has to be done.

"The wire coil bearings are heat-treated and made of ordinary high-carbon steel!"

"Most of the materials here are ordinary materials, but the processing precision is extremely high. I suspect that they should be heat treated after processing. But I still don't understand how they managed to prevent the material from deforming after heat treatment?"

People from different units and the same major gather together to discuss.

While completing the surveying and mapping, their second step is to see if they can manufacture all the parts based on the surveying and drawings.

Teacher Xiao Zhao’s focus is different from theirs.

Zhao Guoqing said: "Principle, have you figured out the principle? How do they keep the workbench stable during processing and maintain ultra-high precision?"

Yang Shuye said: "Mr. Zhao, as we imagined, they also process in three steps, rough machining, fine machining, and fine grinding. The tools used are also different. The trajectory uses interpolation calculations. The CNC device is processing At the same time, the processing and calculation results are input to the servo system in the form of pulse signals through the sensor.”

Zhao Guoqing said with a cold face: "I still need you to explain this. I want to know why the tool rotates thirty degrees, which is thirty degrees. The displacement moves one millimeter, which is one millimeter. Why can the cumulative error of mechanical linkage be controlled? To that level of accuracy?”

Rotation angle and stroke inspection, nonlinear error verification, tool rotation motion calculation, how to solve these?

The motion of the five-axis machine tool is the synthesis of the motion of the five coordinate axes. The addition of rotating coordinates not only increases the burden of interpolation operations, but also the slight error in rotating coordinates will greatly reduce the machining accuracy. Therefore, the controller is required to have higher calculation accuracy. How do people achieve this?

Moreover, the motion characteristics of the five-axis machine tool require the servo drive system to have good dynamic characteristics and a large speed range. This is the same as the servo system of the photolithography machine. The photolithography machine requires better accuracy, and the five-axis machine tool The sports environment is even worse.

Zhao Guoqing tried to calm down, but Yang Shuye became the first person to be criticized in harsh words by Zhao Guoqing. He shrugged his head and stepped aside.

The more Zhao Guoqing looked at him, the more annoyed he became. What he disliked the most was someone who had no real ability and just tried to get in on the bullshit to claim credit. Does he understand five-axis machine tools?

People can also say that a photolithography machine emits a laser to expose the photoresist!

The technical content is there, just do it!

Teacher Xiao Zhao said: "Everyone, please calm down first and face up to the gap between us and others. We are trying to tackle key problems bit by bit with technology. We are ants eating elephants. I don't believe it. We Chinese people are not as good as others!"

"well said!"

"Mr. Zhao, your words are so motivating, why can't we do the same!"

Teacher Xiao Zhao’s stubborn temper also grew. He contacted Director Meng of the Science and Technology Commission and requested to transfer all the Class A journals on mechanics, mathematics, and electrical automation in the world in the past fifty years, and then go to the patent offices of various Western countries to check the past three These professional patent catalogs for ten years are all public.

Zhao Guoqing called Director Liu of the General Staff again and said, "Director Liu, this is Zhao Guoqing!"

Liu Qing said: "National Day, tell me what happened!"

Zhao Guoqing said: "Director Liu, I suggest that the General Staff coordinate the Ministry of Science and Technology, the Ministry of Industry, and the Ministry of Education to set up a research group on the basis of the 27 units involved in five-axis machine tool surveying and mapping. We must use the five-axis machine tool this time. The problem with the photolithography machining station has been solved!”

Director Liu smiled and said: "National Day, I agree with your idea, but I have a condition!"

Zhao Guoqing nodded and said, "No matter what the conditions are, I agree!"

Liu Qing smiled and said, "How about you becoming the team leader?"

"..."

Zhao Guoqing said: "Director Liu, aren't you making things difficult for me? Don't you know my three skills? My level of mechanical automation is really limited, and I only know a little bit about it!"

If we were working on radar, Zhao Guoqing would do his part, but with this workbench system, Teacher Xiao Zhao was also unable to do what he wanted!

But Director Liu didn't seem to be interested in this. He said: "We also have many project team leaders who are not very good at technology. They have also completed their tasks very well. On National Day, the leaders believe in you and believe that you can Pick up the burden, and the professionals you mentioned will be sent to help you when the time comes."

"who!"

Liu Qing said: "You will know when the time comes!"

"..."

Teacher Xiao Zhao wanted to be a spoilsport, but he also wanted to fight with Director Liu. He said: "Director Liu, can you see if you can issue a reward in the name of the General Staff to solve the core servo system, and the reward unit will be 10 million. Research on compensation algorithms, servo drives, rotation error calculations, etc. will also reward units with 10 million, and outstanding individuals will be rewarded with 100,000. This time I am willing to go all out and offer a reward of 100 million..."

"..." Director Liu was so surprised that he couldn't close his mouth.

If you have money, you can be really savage!

Thanks to l599xl boss for the reward, thank you boss