Chapter 897

"Is this just theoretical data? At the beginning, the theoretical accuracy of these was also within 0.02? " Yun Fei sighed. It's too far from what he thought.

You know, the theoretical accuracy of their three-axis machining centers has reached the world-class level of 0.005mm, and the top-level can fully ensure that the machining accuracy is within 0.01.

Such a level of processing center is no worse than those three-axis processing centers exported to China. Otherwise, the market share of Jiuyi heavy industry will not remain so large, and it is likely to encounter anti-monopoly law in the future.

"The actual theoretical data can be regarded as high precision for the five axes of the ordinary level. But it can't reach the precision level... "Sun Lin sighed.

They have tried their best.

"Moreover, the spindle of this machine adopts the motorized spindle with a maximum speed of 12000 and gantry structure. In order to ensure the machining accuracy of the machine tool, the workbench is fixed and the tool moves in all directions, the specific performance must be verified. The only trouble is the cutting tools. Guo Chuan at the material factory has been improving the coating materials. I don't know when he can succeed... "

"The material is the foundation of the whole country. If it doesn't work, come back from abroad with the best tools for testing. People are more advanced than us, so we can't ignore it... "Yun Fei shook his head and said.

The whole group company may be affected by cloud and non, and rarely purchases foreign instruments and equipment except foreign top instruments and equipment. Many top instruments are embargoed to China. Like those technicians in the Taizu era, they rely on self-reliance, which causes a great waste of research funds.

But Yunfei doesn't care about such things.

The money, no matter how much, is just a pile of data. God wants him to leave something in the world. Even if Bill had so much money, he hung up in the end, wouldn't he be able to take it away?

The greatest pain in life is that people die and leave countless lives of money.

How about more money? It's better to do something. At that time, someone will remember themselves.

Habit is a terrible thing. The entire 91 Research Institute is now sick enough not to use all foreign things. These guys are counting on themselves to get everything out. Anyway, they don't need to pay. Boss Yunda has plenty of money. The sense of honor of this achievement is their own.

Even if Yun Fei is unhappy about this, he has no way to stop it and is afraid to dampen the research enthusiasm of these technical researchers.

"How long will the commissioning of this five axis be completed?" Yunfei saw the formed equipment, the debugging program was running, and the machine tool was running back and forth at a fast moving speed, just to run in the guide rail

"It will take more than three days to run in 24 hours. The fast displacement speed of this five axis machine is 18 meters per minute, which is a little slow... "Sun Lin pointed to several staff in white coats who are constantly writing some data into the notepad in their hands, and the five axis machining center introduced various relevant parameters to Yun Fei.

"XYZ these three axes should not be a big problem, right? Look at the swing range of axis A and axis C... "Yun Fei nodded.

Fast running in is a must before any CNC machine tool leaves the factory. This process is a necessary action to eliminate the assembly gap and find the gap caused by assembly errors.

Regardless of any equipment, the running in of the three most basic moving directions of XYZ is the most critical.

Jiuyi heavy industry started to produce gantry machining centers a few years ago. These basic technologies and principles are the same. Therefore, what he most wants to see is the c-axis based on z-axis swing and rotation.

The rotation direction of this shaft is ± 220 °, which adopts international general standards.

Five axes, the most critical, is actually the fifth axis of rotation. After all, the foundation of the four axes is there.

The initial parameter setting of the machine tool has been completed. Now it is mainly debugging, finding out problems and improving the assembly accuracy of the equipment. These processes must be done by those experienced top assembly workers.

The reason why the performance of these machine tools produced by Jiuyi heavy industry is much higher than that of their domestic counterparts is that they have the top assembly technicians in China.

Sun Lin whispered to a thin middle-aged man who was always paying attention to monitoring the operating parameters of the machine tool. When others clicked on the test console in front of the computer, the operation of the machine tool stopped.

Wait until the person as like as two peas turned around and looked at it. Suddenly, Luo Feng was exactly the same as his master Zhao Jinshan, who made Yun Fei bought one million technicians from 132 factories.

"Master Luo, have you tested the performance of these equipment?" Luo Feng fully demonstrated his value in the Research Institute.

He is not a professional computer software engineer, but he can expand the domestic CAXA 3D drawing programming software according to his own ideas, and design more powerful plug-ins; More importantly, he is the first batch of technicians in the processing center in China, and has a good understanding of various parameters and performance of these equipment.

After this guy was bought by Yunfei, factory 132 found his importance. It's impossible to buy it back.

"We don't know the performance of foreign five axes, but the equipment we have developed has great defects in the processing of some key parts of the aircraft, mainly because the processing accuracy is not enough. Especially the cumulative error is a little big... "Luo Feng said calmly to Yun Fei.

The boss is easy-going and seldom turns a cold face to the researchers.

"Assembly clearance problem?" Yun Fei immediately frowned, "didn't these questions respond to sun Lao them?"

Is there a problem with the close connection of the research institute?

"Many problems can only be found after running for a period of time. Five axis, we don't have any experience. These things can only be found and solved a little... "Luo Feng means, how can Yun Fei not know?

There is no way.

"We don't have enough time to develop slowly..." Yun Fei sighed.

Under Luo Feng's control, the spindle began to swing slowly. From the action point of view, there was no problem. The only thing was the accuracy during processing.

"These specific problems can only be known through processing test after debugging. These things seen in theory are unreliable. Moreover, the spindle connector does not swing too fast because of the hydraulic way... "Sun Lin is also a little uncertain about the actual performance of the latest five axis machining center.

Theoretical things are not always easy to achieve.

"Let's follow the original schedule. I heard that one of our test equipment was taken away from the impeller factory? " Yun Fei suddenly asked Sun Lin next to him, "what's their feedback?"

"It's not a big problem. The accuracy requirements of the impellers they produce are not very high. The data detected by the three coordinates are the same as the test results we get. Otherwise, they don't dare to use such equipment for processing, do they?" Deng Lanqing said with a smile“ Not only did they take away one, but factory 132 also took away two. Due to the performance problems of these equipment, it was decided after discussion that each equipment was 16 million, and factory 132 settled 20 million, but xinkaixing didn't give any money... "

"Money is not important. The key is to get first-hand data." Yunfei really didn't expect that factory 132 was so urgent.

In the next few days, Yunfei stayed in the research institute to look at various experimental data. The supercomputer of the research institute analyzed these data very thoroughly. The reason why the research progress of the 91 Research Institute can be so fast is that it has a continuously upgraded supercomputer named cloud 91.

All kinds of large-scale operation simulation, modeling and analysis can quickly get the test results.

After the equipment commissioning is completed, Yunfei doesn't have the patience to continue to watch the test results here, because the tool wear is too serious. When machining aviation duralumin, in a short time, the coatings on the outside of the tool will be gone. The wear will be more serious only by cutting against the alloy matrix inside.

Imported knives can be transported by air freight through Philip soon, but the price is too expensive.

A three tooth coated milling cutter with a diameter of 8mm is only more than 100 yuan in China, and the best one they buy abroad is more than 60 euros! These things are still not exported to China. Even Philip got them from their warehouse for the 91 Research Institute.

It's killing me.

If the domestic cannot provide supporting tools, the production cost is too high, which may affect their five axis sales, and the consumption of domestic ordinary tools is too high.

"If the Chengdu Guocheng expressway is built, it will be fast from Chengdu to Guocheng..." the expressway from Chengdu to Guocheng has not been built. It takes nearly six hours to take the old road.

The train is fast. It takes only four more than five hours when the speed has not been increased.

But whether it's a train or driving by yourself, it's a long enough time. After the highway is built, it's only two hours' drive from Chengdu to Guocheng. Yunfei laid out high energy consuming units such as material factory and factories such as foundry in Guocheng for these reasons.

Guocheng is close to Jialing River and is rich in hydropower resources.

Industrial electricity is much cheaper than Chengdu, and after the highway is built, the cost of transportation will be reduced on a large scale. Jialing River has 3000 ton cargo ships and airports, and the discount is much greater than that of Chengdu.

Anyway, in Chengdu, it is not close to the origin of various raw materials.