Seeing this, Li Tianfeng thought in his heart, it won't be so unlucky, the blanks of these two centrifugal impellers are still forged by Factory E, and after they are processed into finished products, they can carry out a series of follow-up tests, and there is a problem at this juncture.

Li Tianfeng is unwilling!

After frowning and thinking about it, Li Tianfeng said, "Exit the measurement probe and show it to me." Because Li Tianfeng found that a 90-degree measuring probe was needed to measure the size of the coordinates just now, this Zhou Gong just replaced the probe as required, and the problem was after replacing the probe.

Perhaps, the problem is here, Li Tianfeng thought in his heart.

According to Li Tianfeng's request, the newly replaced 90-degree probe was withdrawn, Li Tianfeng leaned forward, and looked carefully, this look almost made him vomit blood, and there was obviously a hair sticking to the probe, and the hair was relatively thin, like a woman's hair.

Li Tianfeng glanced at the new little beauty meterer not far away, the little beauty had soft short hair, and the hair of the measuring probe was obviously consistent with this short hair.

Zhou Gong also saw this hair, and there was such a low-level mistake, and he didn't find it when he replaced the probe, so the old man blushed and shouted loudly: "Guo Qingqing, what's the matter?" ”

Guo Qingqing was so frightened that he spit out his cute tongue, and came over immediately, obviously recognizing his hair, his little face turned red, and he remembered that he used this 90@ degree measuring head yesterday, and when he put the measuring head away, he carelessly brought his hair in.

"Master, I, I'm ......"

Guo Qingqing's face was red, I was for a long time, and Zhou Gong gave a fierce look, as if to say it again. See how I'll clean you up later.

After figuring out the reason, Li Tianfeng waved his hand and said: "Forget it, pay attention next time, the three-coordinate meter is a precision measuring equipment, and you can't be sloppy, and I will severely punish you if there is a mistake next time." ”

Zhou Gong nodded hurriedly, "Definitely." Certain! ”

The measurement continued, and sure enough, the next measurement was very smooth, and all the coordinate dimensions of the blades were also qualified, and none of them were out of tolerance, seeing such measurement results, Li Tianfeng was greatly relieved, and his mood was not the same as just now, as if he had gone from the abyss to the peak and the clouds.

The two pieces of centrifugal impeller are of excellent processing quality. A series of tests and verifications can be carried out, and Li Tianfeng is looking forward to it.

It's just that Li Tianfeng didn't think that these two parts with excellent processing quality still had problems in the next test, of course, this is a later story.

………

No. 3 processing workshop.

Li Tianfeng didn't understand why Yang Xianfeng was so interested today. I actually ran over in person and wanted to see my No. 3 processing workshop.

Presently. The third workshop and the fourth workshop have been put into use, and among the two workshops, a lot of machine tools and equipment have been installed, in addition, some machine tools and equipment are being installed and debugged. These two plants. The same large scale, and the No. 1 workshop, No. 2 workshop, in the same building scale.

Workshop No. 3 is mainly engaged in the production and manufacture of various types of blades for aero engines. Li Tianfeng made a thorough machine tool and equipment procurement plan at the beginning, and even had a lot of professional equipment.

Such as large, medium-sized crank lathes, crank lathes are mainly used to turn the blade tip, and often the blade is assembled to the wheel disc or special fixture, and then on the crank for the whole disc blade tip workshop, whether it is a fan blade, compressor blade, or turbine blade.

In addition to such a plurality of different sizes of the crank, there are a large and a small two broaching machines, these two broaching machines are imported equipment, the price is not cheap, the turbine disc and compressor wheel disc have a tongue and groove, and the broaching of the tongue and groove must be a brought.

The blade corresponds to the tenon, just like a male and a female, the processing of the blade tenon is also a broaching process, and these two blade broaching machines are used to process the blade tenon.

In the past, when he was in the E factory, Li Tianfeng cooperated with the processing of the turbine disc tenon and groove of the turboshaft C engine, and the old-fashioned broaching machine in the E factory made Li Tianfeng very depressed, the stroke of the broaching machine was very short, and it took several strokes to broach a tenon groove, which was very troublesome, not to mention, and it was easy to have quality problems.

Knowing the importance of the broaching machine, Li Tianfeng not only purchased an imported broaching machine for the No. 1 processing workshop specializing in processing tenon and groove, but also purchased two blade broaching machines, one large and one small, for the No. 3 workshop, which can process various blade tenons of different sizes.

Two broaching machines are installed side by side, both are horizontal broaching machines, with a length of more than ten meters, and one stroke can pull out the tenon of various blades, which is very convenient and fast.

Li Tianfeng and Yang Xianfeng together, the two walked into the No. 3 processing workshop, Yang Xianfeng saw the two CNC bedroom broaching beds, couldn't help but speed up the pace, and walked over with envy.

"Good fellows! CNC broaching machine imported from Germany, such a broaching machine is worth not 20 million, but more than 10 million. ”

Li Tianfeng said happily: "Mr. Yang, good vision, these two broaching beds are worth more than 30 million, and it took a lot of effort to find a lot of connections to buy them back." ”

Yang Xianfeng said: "With such two broaching machines, any blade tenon processing is not a problem, and the processing quality must be very good." ”

The processing quality of the blade tenon is very important, and Yang Xianfeng is well aware of this. Because the blade is a stressed part, and works in a very harsh environment, such as high temperature, high speed, high load environment, if the processing quality of the blade tenon is not good, it is an absolute hard injury.

As long as the blade tenon has a little quality problem, it is generally not dared to use, in case the blade cracks or even breaks from the tenon, then it is okay, the whole engine will be beaten by the blade that rotates at high speed.

With such good processing equipment, Yang Xianfeng, who knows the importance of blade tenon processing quality, was very blushing and looked around with great interest for a long time.

Seeing this, Li Tianfeng said with a smile: "Mr. Yang, our two CNC broaching machines have been installed and debugged, and we can officially start processing parts. ”

Yang Xianfeng obviously also took a fancy to these two CNC broaching machines, nodded and said: "This can be considered." ”

Yang Xianfeng is really envious of such equipment, E factory also has a professional blade processing workshop, but the blade tenon broaching machine is relatively old, Yang Xianfeng even personally reported to the group head office, applied for the purchase of an imported CNC horizontal broaching machine, but the approval of the above, wait for the next round of technical transformation and then consider.

"Tianfeng, it's better for your private enterprises, flexible operation, you have the final say, as long as you have enough funds, you can buy whatever you want, which is like us, if you want to buy a better equipment, you have to ask for approval."

Li Tianfeng agrees with this, state-owned enterprises have the advantages of state-owned enterprises, but there are also some drawbacks.

After taking a look at the two imported horizontal CNC blade tenon broaching machines, Yang Xianfeng saw two rows of CNC EDM and wire cutting processing equipment not far away, and suddenly became interested again.

The blade processing of aero engine is very professional, and the processing equipment also has certain differences, such as the cranking and tenon broaching machine just now, and now the EDM and wire cutting equipment.

"Good guys, six of the best EDM machines in China, and four of the best wire cutting machines in China." Seeing this, Yang Xianfeng's heart was very high, the envy on his face was more obvious, and when he walked to a large wire cutting machine tool, Yang Xianfeng stopped.

This wire cutting machine tool is obviously much larger than the other four domestic wire cutting machine tools, red and white as the main color of the machine tool body, on the big very conspicuous English letters, Yang Xianfeng said: "You have also bought such CNC precision wire cutting equipment, we E factory has always wanted to buy, has not been bought." ”

This CNC precision wire cutting machine tool is also used to process blades, many blades of aero engines will be used in wire cutting, in order to ensure processing accuracy, Li Tianfeng spent nearly 10 million to buy this equipment.

After looking at this imported precision CNC wire cutting machine tool, Yang Xianfeng looked at the rows of several CNC machining centers that have been installed and commissioned, and there are many blade milling processes for blades, and several such machining centers have been installed in the third workshop for blade milling.

Professional blade processing workshop, the number of machining centers is relatively large, Li Tianfeng is ready to purchase ten five-axis linkage CNC machining centers for the No. 3 processing workshop, no less than six sets of three-coordinate CNC machining centers, just now Yang Xianfeng saw only a small part, most of this equipment has not been purchased in place.

After looking at the entire No. 3 workshop, when he was about to leave, Yang Xianfeng seemed to have discovered a strange thing, stopped, and asked suspiciously: "Tianfeng, you are a professional aero engine blade processing workshop, where is your blade polishing area?" ”

In the blade processing workshop of factory E, there is a huge blade polishing area, dozens of polishing workers are working at the same time, noise, dust, plus the workers are fully armed, wearing protective glasses, dust masks, and a full set of dust clothing, the grandeur of the scene, Li Tianfeng still remembers it vividly, as long as he thinks of it, this scene immediately appears in his mind.

Thinking of these, Li Tianfeng said with a smile: "Mr. Yang, I don't plan the blade polishing area, and the blades produced by our Tianfeng Technology don't need to be polished. ”

"The blades are not polished?" Yang Xianfeng was obviously stunned, "Tianfeng, I'm afraid that the leaves won't be polished!" ”

Li Tianfeng said: "Mr. Yang, leaf polishing, the disadvantages outweigh the advantages, we will seek a breakthrough in the process, the use of mechanical processing methods, so that the surface roughness of the blade to achieve qualified, rather than the use of artificial polishing methods." ”

Hearing this, Yang Xianfeng said: "Tianfeng, you are preparing to subvert the traditional craft!" ”

Li Tianfeng said in his heart that it is to subvert the traditional process and completely break the misunderstanding of leaf polishing.

………

Today's fourth watch, the second watch will be sent, everyone will smash the monthly pass! (To be continued......) R1292