"How about it, you have gnawed this hard bone now?" Liu Jianqing asked Yang Jie and Wang Yonglin.

"All the processing procedures of our flame cylinder have been compiled into a standard manual, and the processing process is strictly in accordance with the standard manual. ”

Yang Jie said with a smile.

Wang Yonglin has worked in Rolls-Royce for more than 20 years and has participated in the research, production and production of many aero engines, and Yang Jie still trusts him very much.

"Well, then I'll stay here today and watch you process this flame canister. Liu Jianqing said.

Yang Jie accompanied Liu Jianqing to the semi-finishing section of the workshop, and saw several pieces of flame cylinders after the semi-finishing process, the parts have been greatly reduced, and they have begun to take shape, and they can see the appearance of the flame cylinder, weighing more than ten kilograms.

Then everyone came to the finishing section, next to a high-precision CNC machine, a senior technician in his forties was doing preparatory work, preparing for the first finishing process of processing the flame cylinder.

Such a critical part, the processing is so difficult, the workshop in the staff arrangement and machine tool selection have been fully considered.

Zhou Yushi, who operates high-precision CNC lathes, originally worked in Chenguang Machinery Factory for more than 20 years, and in recent years, he has been transferred to the Machine Tool Research Institute to participate in the research and development and trial production of high-precision CNC lathes, and now he has been transferred to Yonghan Aviation Power Technology Company to work.

Not only Zhou Yushi, but many technicians here are drawn from other subsidiaries of Huaxing Group Company or recruited from many military enterprises.

Do a series of preparatory work before processing, Zhou Yushi began to clamp the first part, after a series of preparatory work, install the parts to be processed, align, tool alignment, imitation of the running program and a series of work, he is meticulous.

Press the start button of the machine tool, the program starts to run, the machine tool starts to work, and a slight and stable bee sound comes out of the machine tool, Zhou Yushi knows that the processing is normal.

Tang Zhengwang, who accompanied him, is a technical expert of the Liming Engine Factory, especially specializing in machining, Tang Zhengwang is wearing reading glasses, and is holding the processing technology card of this fine turning process and looking at it very seriously.

After looking at it for a while, his brows gradually furrowed.

"How can it be processed like this, this is going to be a big problem. Tang Zhengwang couldn't help but say.

Zhang Kelong couldn't help but ask in a low voice, "Expert Tang, what's wrong?"

Liu Jianqing also looked at it at this time.

"This kind of processing is not possible, and it is necessary to process according to the process regulations compiled in this manual. Tang Zhengwang improved his tone.

Tang Zhengwang is a professor-level senior technician, and he also has two brushes in terms of machining technology, and he is also one of the members of the expert group.

Yang Jie also looked at this soup expert, he didn't know what was wrong with him, and he also glanced at Wang Yonglin.

Wang Yonglin walked over and asked, "Expert Tang, what's the problem?"

Tang Zhengwang pointed to the CNC machining process card of this fine turning and said loudly: "You take a look, this fine turning process will process all the dimensions of the inner circle of the flame cylinder in place at one time, how can this work, I am sure that there will be problems." ”

The accompanying expert groups also took the process card and looked at it carefully, all of them frowned, and they all thought that what Tang Zhengwang said was complete and correct.

The flame cylinder, just like a big cylinder, a thin cylinder, is still relatively thick, the wall thickness is several millimeters, according to the general process method, is a little by little, layer by layer turning, turning the inner circle, and then turning the outer circle, turning in turns, repeating inside and out, until the flame cylinder is processed to a wall thickness of only 0.8 mm, becoming a round large cylinder.

Although the structural design of the flame cylinder of Yonghan Aviation Power is different from the flame cylinder processed in the Dawn Engine Company, it is still generally the same, but the processing technology on this process card is obviously different - the parts are still so thick, and now the first fine turning will process all the dimensions of the inner circle in place at one time.

How is this possible!

"Mr. Wang, this processing is not appropriate, now all the dimensions of the inner circle are processed in place, and then when the outer circle is turned, once the parts are deformed, the inner circle of these dimensions that have been processed in place will all be transformed, and once the size is changed beyond the tolerance, the parts may be scrapped. ”

Zhang Kelong said to Wang Yonglin after listening to the opinions of these experts.

Liu Jianqing also nodded, obviously agreeing with the views of these experts.

"Mr. Wang, you can explain it to everyone. Yang Jie said.

"Liu Lao, Yang Shao, Minister Zhang, the flame cylinder is a large cylinder, the ultimate wall thickness is only 0.8 mm, such a thin large cylinder, to say a little exaggerated, a little hard press, the parts will be deformed, in addition to the flame cylinder on the many very precise air mold cooling tanks, if according to the normal processing technology, it is impossible to turn metal materials on such a workpiece, so we redesigned the processing technology. ”

Wang Yonglin said.

Liu Jianqing asked: "Then what measures are you going to take to prevent the processing and deformation of parts?"

Wang Yonglin smiled slightly, "Elder Liu, everyone, please wait patiently for a while, when this part is processed, we will immediately carry out the next process." ”

The next process, that is, the outer circle of the finishing car, is a very critical process, the four major domestic OEMs are planted on this process, this process is very high, for example, the request for parts of the outer circle runout is not more than 10 wires, as well as a few circles of precision groove cutting processing, which are all horizontal there like Mount Everest difficulty.

"Well, do you have the next process?" Tang Zhengwang was stunned.

Wang Yonglin nodded with a smile and said: "Of course, the fastest way to go is to go through the water, saving a lot of waiting time, and the processing speed is naturally much faster, and everyone can see the results in another hour." ”

"It's a lot faster to walk through the water, so it doesn't seem like we need to wait long. The expression on Liu Jianqing's face also softened, and he also looked forward to seeing the results immediately.

Yang Jie said with a smile: "Old Liu, it will take some time for this part to be processed, everyone will go to the workshop office to take a rest and have a cup of tea." ”

"No need, I'm just here to see how you make the flame tube. Liu Jianqing waved his hand and said.

According to the original processing route of the domestic main engine factory, after the inner circle of the fine turning flame cylinder, there will be a machining allowance of 1 mm, which is not processed to the design size at one time, and after leaving the machining allowance of 1 mm, the outer circle of the finishing car, after the finishing turning, also leaving a machining allowance of 1 mm, and then the inner circle of the fine turning, and then the outer circle of the fine turning, and then repeating, until the final design size.

Even if such a processing process produces deformation, the size that has been processed in place has a slight change, and there is a margin to correct it again, the problem is that the deformation has not been avoided, and finally it will affect the ultimate design size, affect the pass rate and processing quality of the part.

However, the processing route of Yonghan Aviation Power Technology Co., Ltd. is to take advantage of the fact that the wall thickness of the parts is still relatively thick and the rigidity is very good, and the inner circle is processed to the final design request size at one time, and then the outer circle is processed.

At this time, the wall thickness of the parts is still very thick, several millimeters of processing thickness, which means that there is a large cutting allowance, such a large number of parts material cutting, the parts will be thinner and thinner, and the corresponding rigidity will be worse and worse.

At this time, he was still frowning, looking thoughtful, as if he was thinking about how to deal with it here.

Yang Jie smiled, he himself had been in contact with a lot of skilled masters before, and several of them were stinky personalities, admitting the reason for his death, and he would not greet him, and he estimated that this one was too.

The finishing process continues, and after almost an hour, the machined parts are vigilantly placed on a test table coated with thick rubber.

This freshly machined part is undoubtedly very pretty, and the finished surface is very pretty, very smooth, and shining with the unique luster of superalloy.

Seeing this part, Tang Zhengwang also showed surprise, and couldn't help but let out a soft "huh".

Reborn University Tyrant Latest Chapter 506 Flame Tube Processing!Website: