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In the afternoon of the same day, Qiu Wen'an officially took office.

At the same time, the establishment conference of the Aero Engine Design Institute of Tianfeng Technology Company was also grandly held. Li Tianfeng personally served as the director of the design institute, Qiu Wen'an is the deputy director and model chief designer, and Wu Yuhua is the deputy director. At the establishment conference, Li Tianfeng personally announced that the design work of the "TFZ" type turboshaft engine will be launched.

There are only about 40 people in the Aero Engine Design Institute at the moment, including two professor-level senior engineers, Qiu Wen'an, and one is Wu Yuhua, a professor-level senior engineer at the former e-factory design institute. Wu Yuhua resigned from e-factory early and followed Li Tianfeng. Li Tianfeng did not treat him badly and gave him the position of deputy director.

In the e-plane, Wu Yuhua is also a celebrity. He has participated in the design of turboprop and turboshaft engines. He is also a professor-level senior engineer. Although he is a freshman and over fifty years old, in Li Tianfeng's opinion, his level is pretty good.

There are too few staff members in the aviation engine design office now. If the organization really needs to be sound, there should be thousands of designers, with more than a dozen design rooms and hundreds of design groups under its jurisdiction. Now there are only more than forty designers, and only a few design groups can be set up, each group is responsible for the design of a part.

In this way, the newly established aviation engine design institute has a total of 6 design groups, including the overall design group, the compressor design group, the combustion chamber design group, the turbine design group, the attachment design group, and the speed reduction mechanism design group, each with seven, eight to more than a dozen people.

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

Li Tianfeng has personally drafted the talent demand plan of the design institute and handed over to Hu Xiao in operation, from all over the country, major aviation engine design institutes, major factories, research institutions, universities, and even abroad to explore the design talents needed.

Tianfeng Technology Aero Engine Design Institute was officially established!

The huge modern technology center with a construction area of ​​more than ten floors and a construction area of ​​tens of thousands of square meters has not yet been completed. The newly established design office is temporarily in the office building. Li Tianfeng waved his hand and cleared the entire floor from the office building as the office space of the newly established design office.

...

The machining, rough processing and semi-finishing of Harry Potton shafts are progressing relatively smoothly. At present, it has entered a relatively critical precision machining process and spline processing.

This is still the inner spline. There is a whole circle of splines in the inner hole of the end face. Many people may not understand what this is when talking about "splines". But when it comes to gear, everyone should know that the tooth on the gear is similar to the tooth on the gear, but the shape of the teeth is different. There are slight differences.

The two shafts can be driven by splines. There is such a circle of splines on this shaft that are relatively demanding. Now, the spline processing is entering.

"Boss, the first part is ready and you can start processing splines soon." Zhang Can called.

This batch of parts is placed in the No. 1 processing workshop for processing. As the workshop technical director, Zhang Can also knows the importance of these parts and often focuses on these parts. As soon as he enters the more critical spline processing process, Zhang Can personally call Li Tianfeng to report.

In the past few days, Li Tianfeng has been paying attention to the progress and processing quality of this batch of parts. Every time he goes to the processing site for inspection, he must check 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, then left the office, got off the office building, and went directly to the processing workshop No. 1. He was clear about the processing situation. Li Tianfeng knew where to do the processing, so he walked straight to the machine tool.

A CNC vertical insertion bed for processing splines has lathes, grinders, drilling machines, milling machines, and naturally there are also plugs. The equipment used for processing these splines is this vertical CNC insertion bed.

When Li Tianfeng walked to the bed, the first part was installed on the fixture, Zhang Can was next to him, and the worker who operated the machine tool was adjusting the knife, rectifying the parts, and doing preparations before processing.

"boss!"

Seeing Li Tianfeng coming, Zhang Can quickly greeted him. Without Zhang Can reporting, Li Tianfeng could see how the preparations were done at a glance.

Li Tianfeng said: "The preparations must be carefully done and there must be no problems."

What are the most feared when using the insertion bed to process splines? What is the phenomenon of "crack collapse" during the processing process? The so-called "crack collapse" means that the blade inserted into the knife is directly cracked due to various reasons during the processing process. As long as the crack occurs, it will definitely affect the parts, cause defects in the processed splines, and often cause direct scrapping of the parts.

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

Obviously, Zhang Can also understand this and immediately replied: "The quality of this batch of knife insertion, whether it is thick or fine, is excellent. I saw it myself when Sandvik Company sent it here." Li Tianfeng picked up a knife insertion and looked carefully. The quality of the knife insertion was really good.

The worker's preparation was orderly and everything was ready. 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, you should start processing!"

CNC insertion beds are naturally used as CNC programs. However, CNC programming for plugging beds is naturally much simpler. There is no method of using a tool path. Just pay attention to the processing parameters. As long as the processing parameters are selected correctly, the processing will be smoother.

Li Tianfeng did not ask about the program preparation, and Li Tianfeng could not have done anything in person. Zhang Can was doing the preparation, proofreading and review of the program.

Seeing Li Tianfeng instructing to start processing, the worker pressed the green machine tool start button, and the cooling oil sprayed out and sprayed onto the parts. Then, the machine tool spindle began to move up and down, inserting and cutting the parts one by one. At the beginning, it was naturally rough processing and rough spline arrangement.

Once and then...

As the knife was inserted, Li Tianfeng could clearly see that the metal chips were cut off, and a circle of splines could gradually see a shape. Under the rinsing and cooling of the cooling oil, a large number of "c"-shaped iron chips appeared in the metal chip collection tank of the insert bed.

The coolant is usually oily when inserting and cutting the insertion bed, and the same is true for this CNC insertion bed. Instead of the milky white coolant, it is clear engine oil that acts as coolant.

The movement of the insertion bed is mechanical and simple. Anyway, I keep repeating up and down movements. The machine tool spindle is up and down, and the parts are inserted and cut. Li Tianfeng is next to me, so I am more interested in seeing it.

After one round of rough machining is completed, the CNC insertion bed automatically changes the tool, and a fine insertion knife is replaced, and the spline finishing process begins. The finishing action is naturally the same. The insertion and cutting are not too fast or too slow, but because it is fine machining, the feed is also much more, and the "c" type iron chips inserted are much thinner.

Rough processing, and then fine processing, almost a time passed, and the spline was finally processed. The machine tool spindle rose and the machine tool stopped working. The worker took a wind gun and blew the oil stains on the surface of the part, and then disassembled the processed part.

Regardless of the parts being covered with motor oil, Li Tianfeng looked at it with interest. Seeing standard splines, the surface roughness was excellent, and even the burrs produced by processing were very few. Li Tianfeng couldn't help but look at Zhang Can with appreciation.

The entire spline processing technology and processing procedures were basically done by Zhang Can and the craftsmen under Zhang Can. Li Tianfeng basically did not mention any specific "guidance opinions". He did not expect that the spline was processed well.

I don’t know what the size is. Anyway, after looking so carefully, the surface processing quality of this circle of splines is very good.

"Measure the coloring!"

There are many spline sizes, and some are not easy to measure directly. The most direct way to measure is to use spline gauge for coloring inspection.

The spline gauge was naturally ready. Upon hearing this, the worker next to him evenly applied a circle of red colorant on the gauge, and then carefully wiped the oil stains on the parts with a clean rag, and gently stuffed the colored gauge into the splines.

The spline gauge is easier to get in, but it also has a tightness, which seems just right. The experienced worker master looked happy and the spline processing should be qualified.

Anyone with experience knows that if the spline gauge cannot be entered, the spline processing will definitely not be qualified. If the spline gauge is too easy to enter, it will not work. The tightness of the inlet is just right, which is the most suitable.

Put the gauge in and then pull it out again, and a uniform red colorant is found on the surface of the spline. Li Tianfeng visually measured that the coloring area of ​​the spline is about 90%, which can reach such a coloring level, which shows that the processing quality of the spline is excellent.

There are strict requirements for the coloring of splines on the design drawings, requiring that the coloring area must be greater than 80%, which is a very high requirement. Now, checking, the coloring actually reaches 90%. You should know that once the coloring reaches 80%, it will be much more difficult for each percentage to go up.

90%! Not bad, not bad!

Li Tianfeng was happy and said to the worker: "Continue to measure other sizes and related technical requirements."

Upon hearing this, the worker took the parts to the marble inspection platform not far away and began to measure other sizes. Each time one size is measured, the actual measured values ​​will be recorded.

After this measurement, the spline processing process was all qualified in all sizes and the parts were processed with excellent quality. Li Tianfeng took the actual measured value record table filled out by Zhang, looked at it, and said in a good mood: "Director Zhang, you have processed this process beautifully!"

After receiving praise from Li Tianfeng, Zhang Can was delighted, "Boss, you teach this well. Many crafts and craftsmanship habits are learned from you."

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

………

The third update is today, and the third update is given.

There are still a lot of things in the factory today. What kind of lean production is going on? I am worried about the July 1st gift. However, thinking that there were only two updates yesterday, I gritted my teeth and copied three chapters today. I hope everyone’s monthly tickets will support you! If you don’t have monthly tickets, I mind the recommendation tickets! (To be continued, please search Piaotianwen, the novel is better and faster!
Chapter completed!