Tang Jian yì is a professor-level senior engineer of the E factory, and is also one of the members of the expert group of the E factory, usually, everyone respectfully calls a "soup expert", in the E factory, Tang Jian yì is very famous, in terms of machining technology, there are also two brushes.

Li Tianfeng naturally knew Tang Jianyì, because Li Tianfeng was also a member of the expert group of Factory E before, but Li Tianfeng was not very familiar with Tang Jianyì, and there was not much intersection between the two.

At this time, Li Tianfeng also looked over, frowned slightly, and said, "Expert Tang, what's the problem?" ”

Tang Jianyì pointed to the CNC machining process card of this fine turning, and said loudly: "You see, 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, there will definitely be problems." ”

Liu Qingshan is the deputy chief engineer of E factory, Cheng Gang is the technical director, and they are all people who understand technology, and the two of them also looked at this processing technology card seriously, and the two of them also frowned.

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, it is a little by little, layer by layer turning, turning the inner circle again, and then turning the outer circle, turning in turns, inside and outside repeatedly, until the flame cylinder is processed to a wall thickness of only 0.8 mm, becoming a round large cylinder.

In the past, this was the process in factory E, over and over again, turning one layer on the inside, another layer on the outside, and so on and so on, layer by layer, until the end.

However, the processing technology of Tianfeng Technology is completely different, and 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.

Liu Qingshan also hesitated and said: "Tianfeng, this processing is not proper, 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 dimensions of the inner circle that have been processed in place will all be changed, and once the size is changed beyond the tolerance, the parts may be scrapped." ”

Cheng Gang next to him also nodded, obviously agreeing with Liu Qingshan's point of view.

Li Tianfeng couldn't help grinning and said: "Mr. Liu, the flame cylinder is a big cylinder, and the final wall thickness is only 0.8 mm. ”

Li Tianfeng continued: "The design requirements are very high, not allowed to store zài deformation, you see, the roundness of the flame cylinder is required to be only 3 wires, and the runout of the benchmark A cannot exceed 5 wires, in addition, there are many very precise air mold cooling grooves on the flame cylinder......"

Li Tianfeng said in great detail, which means that this part is very difficult to process, once the deformed parts may be scrapped, as the parts are processed thinner and thinner, the rigidity is getting worse and worse, so a thin large cylinder, a little hand press will be deformed, not to mention the turning of metal materials on it, according to the original process of the E factory, Li Tianfeng has seen that it is inappropriate, so he did not use the original processing technology of the E factory, but found another way.

Liu Qingshan asked: "Tianfeng, what methods are you going to use to prevent the processing deformation of parts?" ”

Li Tianfeng smiled slightly, this smile seemed to be full of confidence, which made Liu Qingshan's eyes light up, and he looked forward to it inexplicably, thinking in his heart, could it be that Li Tianfeng really had any good way.

"Tianfeng, ...... you" Liu Qingshan asked hesitantly.

Li Tianfeng nodded, "Mr. Liu, wait patiently for a while, and when this part is processed, we will immediately proceed to the next process." ”

The next process, that is, the outer circle of fine turning, is a very critical process, before, the E factory is planted on this process, this process is very demanding, for example, the outer cycle of the part is required to run out of no more than 10 wires, as well as a few circles of precision groove cutting processing, which are all horizontal problems there.

"Tianfeng, you mean you're going to walk through the flowing water?" Cheng Gang asked.

Li Tianfeng nodded with a smile and said, "Of course, the fastest way to go is the fastest, why can't I let everyone keep waiting, no matter what I say today, there should be a result." ”

"It's a lot faster to walk through the water, so it seems that we don't need to wait long." Obviously, Liu Qingshan also wants to see the results immediately.

The so-called flow of water, that is, a batch of parts do not need to be all processed, as long as there is a part of the processing process, you can immediately enter the next process of processing, saving a lot of waiting time in the middle, and the processing speed is naturally much faster.

"Director Zhang, you keep an eye on it here." Li Tianfeng instructed Zhang Can, the technical director of the first workshop, and then said to everyone: "Let's go, let's go sit down and drink a cup of tea, there should be an hour after the processing of this part." ”

Liu Qingshan nodded in agreement, the parts are processed on the machine tool anyway, and they can't be stopped, and it is completely unnecessary for everyone to wait next to the machine tool, sit down, take a break, and drink tea, so Liu Qingshan said: "Let's go, go and trouble Comrade Tianfeng." ”

So, everyone and their group, led by Li Tianfeng and Liu Qingshan, walked towards the office building together, and in a reception room next to Li Tianfeng's office, Liu Wei, who got the news, had enthusiastically prepared a lot of fruits and made hot tea.

Everyone sat down, Li Tianfeng quietly looked at Tang Jianyi, only to see that Tang Jianyi's brows were still tightly locked, and his face was tense, obviously still thinking about the follow-up processing of the flame tube.

"Come, come, everyone drink tea and eat some fruit." Li Tianfeng warmly welcomed everyone, and took the lead in picking up a small piece of watermelon and eating it.

"Tianfeng, it's so polite." Liu Qingshan said happily.

Everyone is an acquaintance, drinking tea, chatting, and the atmosphere is relaxed and happy, however, Li Tianfeng found that Tang Jianyì didn't have many words, and he was basically bored there. Li Tianfeng guessed that Tang Jianyì may be like some technical bulls, he has a stinky temper, admits death, and will not cater to him.

Li Tianfeng really guessed correctly, Tang Jian yì is a stinky temper, otherwise, he would not have been engaged in technology all his life, and he has not earned a half-official position even now when he is about to retire.

Everyone was chatting, and the atmosphere was relaxed, and time passed quickly, an hour passed quickly, and at this time, Li Tianfeng's mobile phone rang.

took out his mobile phone and saw that it was Zhang Can calling, Li Tianfeng nodded slightly, the parts should have been processed, and sure enough, Zhang Can reported, "Boss, the first part has been processed and is being checked." ”

After putting away the mobile phone, Li Tianfeng said: "Mr. Liu, the parts have been processed, let's take a look." ”

"Okay, let's go." Liu Qingshan waved his hand, and the group went to the processing workshop with a car number.

At this time, the measurement of the relevant dimensions of the parts is nearing completion, and the on-site inspector is filling in the measured values of each size that he has just checked.

Seeing everyone coming over, Zhang Can looked happy, took two steps forward and reported loudly: "Boss, the processing quality of this part is perfect, the dimensions are basically poor, and the technical conditions are also fully qualified." ”

All qualified! Medium!

Liu Qingshan, Cheng Gang and others, everyone looked at each other, obviously not believing it at all, Tang Jian was even more hurried, took a few steps forward, and personally looked at the freshly baked parts on the table.

Seeing this part, Tang Jianyì was slightly surprised, and couldn't help but let out a soft "huh", in terms of appearance, this freshly processed part is undoubtedly very beautiful, and the finished surface is very beautiful, very smooth, flashing with the unique luster of superalloy.

Liu Qingshan, Cheng Gang, Chen Dong and others also surrounded them, looked at the parts, and saw that the processing surface of the parts was so beautiful, they couldn't help but glance at each other again, and nodded their heads.

"I'll come, I'll come." Tang Jianyì gently pushed away the comrade inspector, picked up the measuring tool himself, and measured it by himself.

Comrade Inspector looked at Li Tianfeng and opened his mouth to say something, but Li Tianfeng hurriedly waved his hand, "Let Expert Tang come." ”

Tang Jian yì didn't talk nonsense, he personally measured the size one by one, and the action was skilled, and the use of measuring tools was very standardized, even Li Tianfeng nodded slightly, thinking in his heart, this Tang Jianyì basic skills are very solid, as a technical expert, he can skillfully and standardize the use of various measuring tools to measure the size one by one, not bad!

Measured down one by one, when he measured a few more critical sizes, a few sizes that were often out of tolerance in the E factory before, Tang Jian yì said softly again, and measured it several times, after making sure that he was not wrong, Tang Jian couldn't help but look at Li Tianfeng a few more times.

Liu Qingshan couldn't help but hurriedly asked, "Expert Tang, how is the situation?" ”

Tang Jianyì put down the measuring tool in his hand and sighed: "Amazing, amazing, all sizes are not only qualified, but also basically poor, amazing!" ”

Sure enough, it's basically all in the middle!

Tang Jianyì nodded, and then said: "There is also the inner circle runout that has not been measured, if the inner circle runout is also qualified, then the processing of this process, I have to say that it is perfect." ”

Li Tianfeng smiled slightly, and said confidently: "Then let's measure the beating of the inner circle." ”

"Okay, measure now!" After speaking, Tang Jianyì personally screwed up the parts and left, there is a large measuring platform not far from the side, this is a marble platform, more than two meters long, more than one meter wide marble platform is very flat, the flatness is within a few thousandths, and the measurement of some parts, such as height measurement, is measured here, because there is a precision altimeter on the marble platform.

In addition to the altimeter, there is also a precision turntable with a diameter of five hundred, which is just used to measure the beating of parts, Tang Jianyì twisted this part, put the parts on this precision turntable, and operated it himself, and the action is still very standard and skilled.

After installing the dial gauge and correcting the parts, everyone gathered around, watching Tang Jianyì's operation, basically unable to help.

Soon, as soon as it was ready, Tang Jianyì gently touched the dial gauge head to the outer circle datum of the part, pressed the gauge about a dozen wires, and then began to gently rotate the precision turntable, from time to time, according to the beating of the dial gauge, gently knocked the part with a small mallet.

………

Thank you for your tips, recommended votes, collections, and sincere thanks!! Everyone works together with Beike to make this book have a better score and make progress every day!

I1153