In the afternoon of the same day, Qiu Wenan officially took office.

At the same time, the inaugural meeting of the aero engine design institute of Tianfeng Technology Company was also held ceremoniously, Li Tianfeng personally served as the director of the design institute, Qiu Wenan was the deputy director and chief designer of the model, Wu Yuhua was the deputy director, and at the inaugural meeting, Li Tianfeng personally announced that the design of the "TFWZ" turboshaft engine was launched.

There are only about 40 people in the Aero Engine Design Institute for the time being, including two professor-level senior engineers, Qiu Wen'an, and one is Wu Yuhua, a professor-level senior engineer of the former E Factory Design Institute.

In the E factory, Wu Yuhua is also a celebrity, involved in the design of turboprops and turboshaft engines, and is a professor-level senior engineer.

At present, there are too few personnel in the aero engine design institute, and if the organization is really sound, there should be thousands of designers, more than a dozen design offices and hundreds of design teams under its jurisdiction, but now there are only about 40 designers, and only a few design teams can be set up, and each team is responsible for the design of one part.

In this way, the newly established aero engine design institute has a total of six design groups, including the overall design group, the compressor design group, the combustion chamber design group, the turbine design group, the accessory design group, and the deceleration mechanism design group, with seven or eight to more than a dozen people in each team.

There are too few people, so we can only carry out some design work that can be carried out, and supplement the designers while developing the design.

Li Tianfeng has personally drawn up the talent demand plan of the design institute and handed it over to Hu Xiao to operate from all over the country. Major aero-engine design institutes, major factories, research institutes, universities, and even abroad. Discover the design talent you need.

Tianfeng Technology Co., Ltd. Aero Engine Design Institute was officially established!

The huge, more than a dozen floors, construction area of tens of thousands of square meters of modern technology center has not yet been completed, the newly established design institute temporarily in the office building, Li Tianfeng waved his hand, from the office building to empty a whole floor. It is the office space of the newly established design office.

……

The machining of the Harry Burton shaft, roughing, semi-finishing, is progressing relatively smoothly at present. It has entered the more critical precision machining process, spline processing.

This is still an internal spline, a whole circle of splines in the inner hole of the end face, and there may be many people who don't understand what this is when it comes to "splines", but when it comes to gears, everyone should know and know that the circle of teeth on the gear, the spline is almost the same as the circle of teeth on the gear. It's just that the shape of the teeth is a little different, and there are slight differences.

Between the two shafts, the transmission can be carried out by means of guò splines. There is such a circle of splines on this shaft that is relatively demanding, and now, it is entering the processing of splines.

"Boss, the first part is ready, and the spline can be processed immediately." The call was made by Zhang Can.

This batch of parts is processed in the No. 1 processing workshop as the technical director of the workshop. Zhang Can also knows the importance of this batch of parts, and usually keeps an eye on this batch of parts. No, once it enters the more critical spline processing process. Zhang Can personally called to report to Li Tianfeng.

In the past few days, Li Tianfeng has also been paying attention to the progress and processing quality of this batch of parts, and every time he goes to the processing site to inspect, he must take a look at the processing of these parts.

"Zhang Can, I'll come over right away!"

After hanging up the phone, Li Tianfeng took the work hat and put it on, and then went out of the office, got off the office building, and went directly to the No. 1 processing workshop.

A CNC vertical slotting machine for processing splines, machine tools have lathes, grinding machines, drilling machines, milling machines, and naturally there are slotting machines.

When Li Tianfeng walked to the side of the slotting machine, the first part had been installed on the fixture, Zhang Can was beside it, and the worker master who operated the machine tool was aligning the tool, finding the parts, and making preparations before processing.

"Boss!"

Seeing Li Tianfeng coming, Zhang Can hurriedly said hello, without Zhang Can's report, Li Tianfeng could see at a glance how well the preparations were done.

Li Tianfeng said: "The preparation must be careful, and there must be no problems." ”

The so-called "chipping" is the insertion knife in the processing process of the cutting edge directly cracked for various reasons, as long as the chipping occurs, it will definitely have an impact on the parts, and will cause defects on the spline process, which can often cause direct scrapping of the parts.

Therefore, Li Tianfeng will ask about the preparation work and remind him to pay attention.

Obviously, Zhang Can also understood this, and immediately replied: "This batch of knives, whether it is a rough knife or a fine knife, is of excellent quality, and I personally saw it when Sandvik sent it over." Li Tianfeng nodded, picked up a knife and looked at it carefully, the quality of the knife was really good.

The preparation of the worker's master was orderly and ready, and the worker's master looked at Zhang Can and Li Tianfeng, obviously waiting for the instructions of the two.

Li Tianfeng said: "Since you are ready, it is to start processing!" ”

CNC slotting machine, the use of natural CNC program, however, the CNC programming of the slotting machine is naturally much simpler, there is no way to go to the knife path, as long as you pay attention to the processing parameters, as long as the processing parameters are selected correctly, the processing will be more smooth.

Programming is not asked by Li Tianfeng, and Li Tianfeng cannot do everything himself, the preparation, proofreading, and auditing of the program are all done by Zhang Can.

Seeing Li Tianfeng's instructions to start processing, the worker master pressed the green machine tool start button, the cooling oil sprayed out, sprayed on the parts, and then, the machine tool spindle began to move up and down, and the inserting parts at one time were naturally rough machining and rough splines.

Let's take a look......

With the insertion of the knife, Li Tianfeng can clearly see that the metal chips are inserted and cut off, and a circle of splines can gradually see a little shape, and under the flushing and cooling of the cooling oil, a large number of "C" type iron filings appear in the metal chip collection groove of the inserting bed.

For the insertion of the slotting machine, the coolant is generally oil, and this CNC slotting machine is the same, instead of the first white coolant, it is the clear oil that acts as the coolant.

The action of the slotting machine is mechanical and simple, anyway, it has been repeating a up and down movement, the machine tool spindle is up and down, and the plugging parts are cut by Li Tianfeng next to him, and he is more interested in watching.

A circle of rough cutting is completed, the CNC slotting machine automatically changes the tool, changes to a fine inserting knife, and begins to finish the spline, and the finishing action is naturally the same, the insertion is not hurried, just because it is finishing, the feed is much smaller, and the "C" type iron filings that are inserted are much thinner.

Rough machining, and then finishing, almost an hour passed, this circle of splines was finally processed, the machine tool spindle rose, the machine stopped working, the worker master took the air gun to blow the oil stains on the surface of the part, and then disassembled the processed part.

Regardless of the fact that the parts were full of engine oil, Li Tianfeng looked at it with interest, and saw the standard splines, the surface roughness was excellent, and even the burrs produced by the processing were very few, Li Tianfeng couldn't help but glance at Zhang Can with appreciation.

The processing technology and processing procedures of the entire spline are basically Zhang Can and Zhang Can's group of craftsmen, Li Tianfeng basically did not mention any specific "guiding opinions", and did not think that the spline processing is not bad.

I don't know how the size is, anyway, just a closer look, the surface processing quality of this circle of splines is very good.

"Measure the coloring!"

There are many sizes of splines, and some sizes are not easy to measure directly, and the most direct measurement method is to use spline gauges for coloring inspection.

The spline gauge has naturally been prepared for a long time, and the worker next to him will evenly apply a circle of red colorant on the gauge, and then use a clean rag to carefully wipe the oil stains on the parts, and gently stuff the colored gauge into this circle of splines.

The spline gauge is easier to enter, but there is also a little tightness, it seems to be just right, this experienced worker master is happy, the processing of spline should be qualified.

Experienced people know that if the spline gauge can't get in, the spline processing will definitely be unqualified, if the spline gauge goes in too easily, it won't work, and the tightness of the entry is just right, which is the most suitable.

Put the gauge in, and then pull it out, there is a uniform layer of red colorant on the surface of the spline, Li Tianfeng visually inspected, the coloring area of the spline is about 90%, and the coloring range can be achieved, indicating that the processing quality of the spline is excellent.

There are strict requirements for the coloring of the spline on the design drawings, requiring that the coloring area must be greater than 80%, which is a very high requirement, and now checking, the coloring has reached 90%, you know, once the coloring reaches 80%, every percentage point up, the difficulty is much greater.

90%！ Not bad, not bad!

Li Tianfeng nodded happily, and then said to the worker: "Continue to measure other dimensions and related technical requirements." ”

Hearing this, the worker took the parts to the marble inspection platform not far away, and began to measure other dimensions, and recorded the measured value for each size.

Li Tianfeng took the completed measured value record sheet, looked at it, and said in a good mood: "Director Zhang, you have processed this process very beautifully!" ”

After receiving Li Tianfeng's praise, Zhang Can was overjoyed, "Boss, this is what you usually teach well, and many process methods and process habits are learned from you." ”

In Zhang Can's eyes, Li Tianfeng is not only his boss, but also half of his master.

………

Today's three watches, the third watch will be sent.

There are still a lot of things in the factory today, what kind of lean production, for July 1st gifts, make me anxious, but, thinking that there were only two more yesterday, today I gritted my teeth and coded three chapters, I hope everyone's monthly pass support! If you don't have a commuter pass, you don't mind the recommended ticket! (To be continued)

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