Start with the aviation industry

Chapter 384 High Precision and Simple Operation

Someone was the first to react, and said loudly, "This is the CU1000 five-axis linkage CNC machining center manufactured by Leihuo Equipment Company!"

Some people in Phoenix Factory know about this.

Immediately someone said, "Oh my God, this device arrived so soon!"

When the scene was full of excitement, Wang Tianfang and several senior executives came over together. Seeing this equipment, everyone was slightly excited!
At the beginning, Phoenix Factory wanted to import a world-class CNC five-axis machine from abroad, but it was stuck in various ways. axis.

"Mr. Wang, the CNC equipment we need has arrived!"

Wang Tianfang smiled and seemed to be in a very good mood. He waved and said, "Remove the equipment immediately, and install and debug as soon as possible."

In order to welcome the arrival of this equipment, the Phoenix Factory and workshop 406 had already made all preparations, and the large crane that unloaded the equipment drove over and stood by.A place has been prepared in workshop 406 to facilitate the installation and commissioning of this equipment.

In everyone's eyes, the large crane hoisted the equipment from the large truck, and then transported the equipment into the 406 workshop through the large forklift, and began to unpack the equipment for installation.

There is no need for pits for the installation of such equipment. It is enough to drill a few anchor bolts and adjust the level. The equipment department of Fenghuang Factory has specialized technicians, and the installation and commissioning of the equipment is not a problem for them.

In just three days, the installation and debugging of this CNC five-axis machine was completed, and the test pieces could be processed.

Wang Qiang took his two apprentices to start operating the equipment, surrounded by many workers or technicians watching the excitement.

Everyone is very novel about this domestic CNC five-axis machine.

"Hey, the operation interface is actually all in Chinese!"

Some people seem to have discovered the New World. The operation interface of this equipment is all in Chinese, without any English, which is completely different from those imported CNC equipment.Not only the operation interface is like this, the operating system is also pure Chinese, and it is its own unique operating system.

CNC equipment also has an operating system, just like a mobile phone has an operating system, but the operating system of 90s CNC equipment is relatively simple, not as complicated and advanced as it is now.

“It’s really all in Chinese!”

"In this case, it is estimated that it is easy to use, and it can be operated with a little training!"

"."

Wang Qiang is proficient in this operation. Before that, several of them went to Leihuo Equipment Branch for operation training together, and they learned it completely in just two or three days.

"Boss Wang and the others are here!"

"Hey, there is also President Lin, why is he here too!"

The employees of workshop 406, as if they had discovered a new continent, never expected that Lin Feng would come here in person.

This is Wang Tianfang specially invited him to come here.This is the first piece of equipment from the equipment branch, and Lin Feng happened to be in Fenghuang City, so he readily agreed after receiving Wang Tianfang's invitation call.

"Hello, Mr. Lin!"

"Master, you are here!"

"Master, hello!"

Everyone took the initiative to greet Lin Feng enthusiastically.

Lin Feng nodded slightly, and then looked at this CNC five-axis machine. It was exactly the same as the color picture provided by the system, and its size was large enough to process workpieces with a maximum diameter of 1000 mm.

Such a large processing size is enough for Phoenix Factory. They are mainly engaged in the production and manufacture of medium and small aero-engines, and 90.00% of the parts are under 1000mm in size.

Wang Tianfang introduced, "Boss Lin, all the preparations have been done, and we are ready to process the test pieces."

Lin Feng asked, "What test piece are you processing? Is it the processing of compressor blades?"

For the processing of compressor blades of a certain engine, Fenghuang Factory has been using stamping and manual polishing, which is inefficient and difficult to guarantee the quality.

This is why they want to add CNC five-axis equipment. Such compressor blades are precision milled on the CNC five-axis, which not only has high efficiency, but also ensures accuracy. The contour of the blade can be within 5 wires, while stamping and forming Hand-polished, with a profile of at least 30 wires.

Lin Feng had worked in the Phoenix Factory for three years, and he was very familiar with these compressor blades. After looking at the semi-finished blades placed beside him, he waved his hand and said, "Let's start processing the test pieces."

Wang Qiang operated it himself, installed a compressor blade on the fixture of the machine tool, and carefully set the tool. After everything was done, he looked at Lin Feng.

Lin Feng smiled, "Look at what I am doing, start processing."

Only then did Wang Qiang close the safety door of the machine tool, press the start button, and the CNC five-axis machine began to work, rapidly milling the compressor blade.

This is a stainless steel blade, which is not a difficult material to process. After three or four 10 minutes, it was finished. Wang Qiang took the blade out of the machine tool.

"Wow, it's so beautifully processed!"

"It's like a work of art, the surface finish is at least below 1.6, and it's estimated to be close to 0.8!"

"Three or four can process one piece in 10 minutes, and one shift can process at least a dozen pieces!"

"."

The finished piece of compressor blade looks good, the blade surface is smooth and clean almost like a mirror, although I don't know the size, but at least it looks good.

After everyone's astonishment, Wang Qiang measured several main dimensions of the blades, all of which were qualified, and basically in the middle range, which shows that the machining accuracy of this machine tool is very high.

"Master, all the sizes are in the middle range!"

Hearing that "all of them are medium-poor", everyone was relieved, and Wang Tianfang was very satisfied and said, "Mr. Lin, the precision of your five-axis CNC machine is very high!"

This of course!

Its design comes from the system, and it is produced by the system, which must be a high-quality product!

Not only the precision is very high, but also the rigidity, stability and service life of the machine tool are very high. It has its own exclusive operating system and is very easy to operate.

Lin Feng nodded slightly, "Let's measure the leaf shape data immediately."

If the blade shape data is also qualified, it means that the processing of this blade is qualified, and this machine tool has completely passed the acceptance.

The leaf shape data will be measured immediately, and the results will be available soon. Every leaf shape data is qualified, and the leaf shape profile has reached the only two and a half silks!
The machining accuracy is amazing!

Wang Tianfang was completely relieved, with a grateful expression on his face, he held Lin Feng's hand tightly, "Boss Lin, thank you for your equipment, from now on, we no longer need to import CNC equipment from abroad, and we no longer have to worry about getting stuck. "

After some thanks, Wang Tianfang said again, "Boss Lin, do you have any suggestions?"

Lin Feng said, "I saw the processing of this compressor blade just now, and felt that the NC program was a little conservative. The advantages of our NC five-axis machine have not been brought into play at all. We can optimize the NC program and try again. Process another test piece."

Three, four, 10 minutes to process a compressor blade, and the machining accuracy is very high, everyone is very satisfied with this result.

Who knows, Lin Feng actually said that the advantages of this CNC five-axis machine have not been brought into play at all.

The technician in charge of programming next to him had a burning face, so he could only humbly say, "Master, please give me some pointers."

Lin Feng glanced at him and felt very unfamiliar. He didn't know which apprentice's apprentice he was, and he didn't take it to heart. He waved and said, "All technicians come here, and I will tell you something."

There were quite a few technicians from Workshop 406 standing next to them. When Lin Feng said this, everyone surrounded them.

Lin Feng began to explain to everyone, mainly some processing parameters, such as what processing parameters can be used for titanium alloys, and what processing parameters should be used for aluminum alloys, stainless steel, high-temperature alloys, etc.

Everyone carefully recorded in the notebook.

After the lecture, Lin Feng demonstrated in person again, directly optimizing and perfecting the NC program just now on the machine tool, and also changing and improving the processing parameters.

After finishing these, Lin Feng said, "Process the blades of the compressor blades and try the effect!"

Wang Qiang immediately started processing, took a piece of semi-finished compressor blade and installed it on the furniture of the machine tool, checked the tool, determined the origin of the coordinates, and closed the safety door of the machine tool after everything was done. This time he did not look at Lin Feng again, but pressed the start button .

The machine tool started to work again, and the compressor blades were processed again. Many people found that the processing this time seemed to be a little different from the previous processing, and the processing speed seemed to be much faster.

About 10 minutes, the processing is completed.

"Is it finished processing? Didn't it take three or four 10 minutes just now!"

"Mr. Lin is amazing, and his level is high. After he made such a change, the processing time has been shortened by almost half!"

"I just don't know how the processing quality is!"

"."

In the midst of everyone's heated discussions, Wang Qiang took off the finished compressor blade, and first looked at the appearance of the blade. The finish was better than last time, and it was more beautiful, and it seemed that the quality was better.

He took the measuring tool to measure the main dimensions, and then said loudly, "All the dimensions are qualified, and they are still all in the middle range!"

Wang Tianfang was slightly excited. He is an expert, knowing that such a high machining efficiency and machining accuracy means that the quality of this CNC five-axis machine tool is very good. It really is a world-class CNC machine tool.

This is much better than their expectations, and this is considered a treasure.

"Measure the blade shape data, including the profile of the blade, I want to see the result immediately." Wang Tianfang said brightly.

The relevant data was measured immediately, and the results came out in a short time. All the same were qualified, basically all were average, and the processing quality was slightly better than the first blade.

I don't know who was the first to take the lead in applauding, and there was warm applause at the scene.

"With such a high machining accuracy, this machine tool is better than any of our imported CNC machine tools!"

"This time I made a lot of money. I bought such a good equipment at such a price. If you want to import the same level of CNC five-axis from abroad, it is a dream!"

"Niu Pi, such a good device is actually manufactured in Leihuo Equipment Branch!"

"Is this the equipment branch factory that couldn't even pay the wages back then and was facing bankruptcy? It's just completely reborn!"

"."

The entire 406 workshop processing site is very lively, everyone is chatting about things related to this CNC five-axis.

Wang Tianfang raised his hand to check the time, it was almost noon, and said enthusiastically, "Boss Lin, let's go have a light meal together."

Lin Feng readily agreed, "Sure, we haven't had dinner together for a long time."

In China, an aero-engine design institute.

They are carrying out the technical pre-research of a large-scale integral blade disc, the design work has been completed, and even the blank of the blade disc has completed some processing procedures, and will soon enter the precision milling process of the blade.

Now there is a problem.

The overall blade disc with a diameter of more than 800 is a big problem for milling the blades. The person in charge, Qiao He, secretly said, it is sloppy, which is a typical lack of preparation.

In order to solve the processing problem of blade milling, they sat together for the second time for a meeting. More than a dozen people were basically members of the R&D team of this project.

"Everyone said what to do. The processing of our blade disk has reached the blade milling process, and the processing has completely stopped."

In the conference room, everyone lowered their heads slightly. This is really a difficult problem.

Domestic five-axis machining centers are relatively limited, and there seems to be no CNC five-axis that can process workpieces with a diameter of more than 800.

Seeing that everyone was silent, Qiao He sighed softly and said slowly, "After my efforts, the institute has approved a processing fund of 20 yuan, and all of this 20 yuan can be used for blade milling. "

Oh my God!

Many people raised their heads and looked at Qiao He in disbelief, seriously thinking that they had heard it wrong, and the processing fee for just one leaf-shaped milling process was 20 yuan!
In 1996, 20 yuan was not a small sum!

A research and development backbone asked, "Mr. Qiao, it's really 20!"

"Yes, 20 yuan!" Qiao He replied affirmatively, "As long as we can mill our blades as required, I can give him 20 yuan for processing."

This processing fee is not generally attractive!
Everyone clearly remembers that the last time they designed an integral blade disc with a diameter of more than 300, it was also made of titanium alloy, and the milling process of the blade only cost 5000 yuan.

Although the diameter of the overall blade disc is more than 800 this time, 20 is much more than 5000!

However, there seems to be no such CNC five-axis in China. After a short period of enthusiasm, the atmosphere in the meeting room became cold again.

After a long time, someone seemed to say something suddenly, "Mr. Qiao, I remembered that XX factory has a large CNC five-axis, which should be able to process our blade disk."

"Really!"

Qiao Hewei, as if seeing hope, quickly dug out the address book, dialed the number above, and directly contacted the chief engineer of the factory.

However, Qiao He soon became disappointed.

The factory does have a five-axis machine that can process workpieces with a diameter of 1000 mm, but it is only second-hand goods imported from abroad, and the machining accuracy of products eliminated from abroad cannot meet Qiaohe’s requirements.

When Qiao He was on the phone with the other party just now, these people in the conference room could barely hear them clearly. After he finished the call, someone suggested.

"Mr. Qiao, why don't we reduce the design precision, the profile of the airfoil can reach 20 wires."

Qiao He sighed and waved his hands, "If the profile of the blade profile is reduced to 20 wires, it will have a great impact on the overall performance of the blade disc. It will be distorted and affect our judgment.”

It is not enough to reduce the design accuracy.

then what should we do!

Someone said, "Mr. Qiao, let's concentrate our resources and channels, and focus on contacting foreign manufacturers. Some manufacturers in Europe and the United States should be able to process such workpieces."

Qiao He shook his head again.

Putting this whole blade disk abroad for processing, not to mention the trouble and time-consuming, mainly there will be leaks, let others know that you are conducting pre-research on this technology, and even the data will be clearly known.

The meeting room was completely dull, as if it had fallen into no solution.

With a "squeak", the door of the meeting room was carefully pushed open, and a young technician came in quietly. Obviously, he was late for the meeting, and he was late for at least ten minutes.

Qiao He was in a bad mood, and suddenly became a little angry, "Xiao Liu, I told everyone that the meeting will be held at nine o'clock, and it's almost nine twenty now."

Xiao Liu quickly explained, "Mr. Qiao, I'm sorry, I just answered a call and talked for more than ten minutes."

Qiao He interrupted with a wave of his hand, "Okay, you can't be late next time, just forget it this time."

Xiao Liu carefully found a place to sit down, and quietly looked at Qiao He one after another, as if he had something to say, but he seemed a little scared.

Just now, he was about to come to a meeting, and before he left the big office, someone called his phone number. It was a call from a classmate of his in college. The two of them shared the same dormitory when they were in college, and they had a very good relationship.

After graduation, one was in Phoenix Factory and the other was in this aero-engine design institute. Although they were separated by hundreds of kilometers, they were often in contact.

During the phone call, his classmate disclosed the news that Phoenix Factory bought a CNC five-axis machine, which can process workpieces with a maximum diameter of 1000 mm. Not only is the machining accuracy very high, but it also has its own operating system, and the operation is very simple.

At the beginning, Xiao Liu was very interested, because their integral blade disc with a diameter of more than 800 was about to be CNC milled for the blades, and they were worried that they did not have processing equipment.

But knowing that this is just a domestic CNC five-axis, designed, developed and manufactured by Leihuo Equipment Branch, he thought his classmate was bragging, how good the domestic CNC five-axis can be, and how high the precision can be go.

His classmate swears that he is not bragging at all, and also said that the processing quality of some of the blades they process, such as the size is basically average, and the profile of the blade is basically only two or three wires.

Because he was in a hurry to come to the meeting, Xiao Liu hastily ended the call, and then trotted all the way over, but he was still more than ten minutes late.

After sitting down in the conference room, Xiao Liu thought to himself, isn't my classmate bragging that this CNC five-axis machine manufactured by Leihuo Equipment Branch is really so powerful.

Qiao He finally felt Xiao Liu's gaze and asked, "Xiao Liu, do you have anything to say?"

(End of this chapter)