The front page of "Songzhou Daily" is the headline position, and a large number of blockbuster reports; "Songzhou Evening News" also carried out a full-page report with pictures and texts, and "Songzhou Online" also carried out a lot of reports, and the website forum was hot, almost talking about the signing of Tianfeng Technology.

"Tianfeng Technology, I've heard of this company, it's very powerful!"

"I bought a bottle of Xiaoer today to celebrate, and our company actually transferred the patent to the American company, cool, I'm sorry for myself if I don't celebrate."

"I really want to go to Tianfeng Technology Company, I don't know if they can recruit people."

“……”

Tianfeng Technology.

In his office, Li Tianfeng was holding a copy of "Songzhou Daily" and looking at it with relish, thinking in his heart that his Tianfeng Technology Company should be able to make a good fire in the near future, at least in Songzhou City.

Li Tianfeng has already answered several congratulatory calls, no, just after reading the report in the "Songzhou Daily" for a while, Li Tianfeng's phone rang.

"Tianfeng, congratulations!" Yang Xianfeng's hearty voice came.

Li Tianfeng smiled and said happily: "Mr. Yang, I also want to thank you, if it wasn't for you, we wouldn't have today's gratifying harvest." ”

Indeed, this is the truth, it was Yang Xianfeng who sent a batch of parts of Halliburton Company to Tianfeng Technology for processing, and then there was the cooperation between Tianfeng Technology Company and Halliburton Company.

Yang Xianfeng smiled happily, "Tianfeng, that's because the quality of the parts you process is very good, and it has nothing to do with me." And then. Yang Xianfeng's words changed, "Tianfeng, I didn't expect you to develop such an advanced self-locking nut, it's amazing!" ”

"Mr. Yang, we are producing this self-locking nut in small batches. If you are interested, I can give you a little free of charge, put it on an aero engine and try it, I pack the ticket, it must be much better than the kind of self-locking nut you imported from France. ”

Yang Xianfeng sighed: "Tianfeng, it may not be a trivial matter to replace it with a new type of self-locking nut. You have to communicate with the Sixth Design Institute, and then there is the validation. ”

Of course, Li Tianfeng knew this, and said with a smile: "Mr. Yang, the relationship between you and the design institute is not leveraged, you just need to help me sell it a little." I think the design side will definitely use my self-locking nut. ”

"Haha, Tianfeng, you hit my idea, okay, I'll give you a try as a salesman." Yang Xianfeng readily agreed.

Suddenly, Li Tianfeng was in a good mood.

If such a self-locking nut can be used in an aero engine, it will be a breakthrough, Li Tianfeng does not ask people to use this self-locking nut in large quantities and in a large area, after all. Aero engines are not child's play, and even if they are to be used, they must be strictly verified, and then gradually popularized and used.

Li Tianfeng's plan is. As long as they use it, they can use this to play a dozen advertisements, such as a special self-locking nut for an aero engine, etc., so that a dozen advertisements, and then enter the rest of the field to promote such a self-locking nut is much easier.

After ending the call with Yang Xianfeng, Li Tianfeng felt very good. After a burst of relaxation, I took advantage of the opportunity to read several design drawings. These drawings are basically the drawings of the core part of the machine, and they are all important key parts. Li Tianfeng often took a look at it and carefully scrutinized it.

After the design drawings are completed, three-dimensional simulation is required, and then there is the processing of parts, part of the design drawings have been completed, and some parts have been processed in accordance with the requirements of the design drawings, such as the centrifugal impeller mentioned last time.

Some of the parts are bar stock, which do not require forging and casting, and a small number of such parts have already been processed, such as the elastic shaft that was machined in the first workshop. In order to speed up the progress of research and development, Li Tianfeng implemented a two-legged strategy, on the one hand, he stepped up the design of the "TFWZ001" turboshaft engine, and on the other hand, he had already begun the processing of some parts.

The elastic shaft is a bar blank, the material is a high-temperature alloy, Tianfeng Technology Co., Ltd. directly purchases the bar stock for processing, the part has completed rough machining, and is carrying out semi-finishing and finishing.

No. 1 processing workshop.

The positioning of the workshop is to process aero engine rotating parts, such as fans, compressors, turbines, etc., and the elastic shaft currently being processed, connecting the gas turbine disc and the centrifugal impeller, and the centrifugal impeller is driven by the gas turbine to rotate at high speed, with a speed of 4 or 50,000 revolutions.

Li Tianfeng thought of the processing of the elastic shaft, so he left the office and came to the No. 1 machining workshop, at this time, the elastic shaft was being processed with deep holes.

The elastic shaft is a hollow design, and it is relatively slender, the straightness is very high, and the processing difficulty is not small, otherwise, Li Tianfeng would not have come to see it in person.

In terms of design, Li Tianfeng fully considers the manufacturability, unlike other designers, who only blindly pursue design performance and do not consider the manufacturability at all.

There are many such parts on the turboshaft C engine of factory E, if the design is not changed and the manufacturability is not improved, Li Tianfeng believes that it is difficult to process qualified parts according to the process capacity of factory E.

The elastic shaft is very long, relatively thin, hollow design, such parts are generally difficult to process, but Li Tianfeng fully considered the manufacturability of the parts, although the processing is difficult, but only the process method is appropriate, the parts can still be processed.

This is a new part, the number of processing is not much, a total of three parts, the processing of these three parts, on the one hand, is to carry out processing process verification, determine the processing parameters, on the other hand, after the parts are processed, a series of tests will be carried out, design verification, performance verification and so on.

On the deep hole drilling machine, the first part is already being machined, and a hole is being drilled in the elastic shaft, which is a deep hole with a diameter of only 16 mm and a depth of 420 mm, and the entire elastic shaft is hollowed out from start to finish.

You may have seen the barrel of the gun, the barrel is also to process a small hole, the processing of the elastic shaft is basically the same, but the accuracy is higher, the requirements are stricter.

In addition, the elastic shaft structure is more complex, there are not only splines, slots, teeth on the shaft, but also two journals with extremely high requirements, which are used to install bearings, in addition, the straightness of the elastic shaft is very high, the shaft length is 420 mm, and the straightness is required to be two wires.

The deep hole drilling machine is imported equipment, and the master who operates it is a master who came from the E factory, and used to process all kinds of parts deep holes, with rich experience.

Seeing Li Tianfeng, the worker took the initiative to greet him: "Mr. Li, the first part is being processed." ”

Li Tianfeng nodded, "How's the processing?" ”

The worker said: "It's okay, it's much better than the turboshaft C engine elastic shaft that was processed in the E factory before, the turboshaft C engine elastic shaft is too difficult to process, and it's still a stepped hole, unlike our part, the through hole is in the end, it's much easier to process." ”

Of course, Li Tianfeng knows the situation of the elastic shaft of the turboshaft C engine, the elastic shaft is designed very fancy, and the manufacturability is not considered at all, and the hollow deep hole of the elastic shaft is a stepped design, which is more fucked up and more difficult to process.

Li Tianfeng saw such a parts design at that time and complained, this time, he personally presided over the design of the "TFWZ001" turboshaft engine, the process of nature should be considered, the design of parts that meet the design performance is not a skill, the design of excellent manufacturability, the performance of the parts is also excellent that is a real skill.

Adhering to this design concept, although the overall performance of the "TFWZ001" turboshaft engine is advanced, and a lot of new designs are adopted, the processing technology of each part is first-class, and the parts processing and manufacturing will definitely not be like the turboshaft C engine of the E factory, and all kinds of problems are continuous.

Looking at the processing of the parts on the machine tool, Li Tianfeng was interested, and did not rush away, but chatted with the workers and masters while watching the processing of the parts.

Chat with the front-line workers, you can learn a lot of the real situation of the front-line, Li Tianfeng as long as the next line of production site, generally will chat with the workers, ask about the processing of parts, listen to the problems reflected by the workers, and so on.

Deep hole processing, the use of a long alloy drill bit, this drill bit and ordinary twist drill is not the same, a little like the appearance of Mitsubishi bayonet, slender, sharp, shining black and shiny metallic luster, and the processing speed is very fast.

At a speed visible to the naked eye, the hole is drilled into the elastic axis, all the way inside, and the elastic axis slowly rotates in the opposite direction.

Deep hole machining, cooling is very important, if the cooling is not sufficient, the drill bit will heat up, red, as the temperature rises, the strength of the drill bit will decrease, Kenneng will wear sharply, and even cracking.

Li Tianfeng was paying attention to the processing situation, and soon found that something was wrong, Li Tianfeng took a few steps forward, picked up a few deep-hole drill bits prepared on the workbench, looked at it slightly, frowned, and picked up the processing technology card, looked at the processing parameters, and did not wrinkle deeper.

This will be a problem, Li Tianfeng thought to himself.

The worker next to him noticed that Li Tianfeng's brows were slightly furrowed, and he couldn't help asking, "Mr. Li, is there something wrong?" ”

Li Tianfeng nodded, "There is a problem with the processing method, especially the cooling method, Master Guo, you suspend the processing and withdraw the drill bit." ”

Hearing this, the worker Master Guo was about to press the red emergency stop button of the machine tool according to the words, suddenly, a harsh, grinding tooth-like sound came, and then it seemed that something was cracking the sound, seeing this, Master Guo walked forward quickly, slapped on the machine tool emergency stop button, and the action was very fast.

Li Tianfeng thought in his heart, if he was a step late, something must have gone wrong.

…………

Today's three watches, the second one will be sent. (To be continued)

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