Hu Yang turned around and saw a stranger behind him, but he was not particularly surprised. For this tackling, the Department of Light Chemical Industry sent several engineers, and Hu Yang naturally regarded Yan Yuanhe as one of them, he explained:

"These special-shaped surfaces of this shaft are not for the sake of good looks, but each has its own role. From its role, it is possible to deduce its curve. It's just that the calculation of these curves is more complicated, and Kobayashi and I used the finite element method to calculate, otherwise it would not work. ”

"You know finite elements?" Yan Yuanhe was a little surprised.

Hu Yang nodded, pointed at Lin Zhenhua and said, "He is my teacher." ”

Lin Zhenhua hurriedly shook his head: "Comrade, don't listen to old nonsense, now he is my teacher." ”

Yan Yuanhe naturally didn't believe that Lin Zhenhua was Populus Hu's teacher, and judging from the conversation between the two just now, it seemed that Populus Hu was a little more divine. He said to Populus, "Your name is Populus euphratica, right?" When your project is over, I would like to ask you to come to us to guide the work, we have a lot of complex calculation problems, just want to find a finite element expert. ”

"What are you going to count?" Hu Yang asked in surprise. These factories in the system of the Light Chemical Department are mainly to produce some products that have been finalized, plus some regular equipment maintenance and other work, it seems that there is no need to involve complex calculations.

Yan Yuanhe said assumedly: "Of course it's ballistic, what else can we calculate." ”

Hu Yang was taken aback: "Comrade, where are you?" ”

"He is the technical section chief of Changhong Factory, Comrade Yan Yuanhe. This time, he personally sent the blanks. Zhu Tiejun introduced with a smile in the back.

"Oh, Section Chief Yan, welcome, welcome." Hu Yang hurriedly shook hands with Yan Yuanhe, with a respectful and distant expression on his face.

Yan Yuanhe didn't think so, after he shook hands with Hu Yang, he said: "How about it, Comrade Hu Yang, let's just make up our minds, right?" ”

"Well, let's take a long-term view." Hu Yang hurriedly flashed, "When it comes to military affairs, I'm not very suitable, hehe, I'm well, the composition of the family is relatively high......"

After that, without waiting for Yan Yuanhe to say anything, he pulled Lin Zhenhua and ran back to the computer.

Yan Yuanhe watched Hu Yang run away, turned his head to Zhu Tiejun and asked, "What, do you Comrade Hu Yang have any political problems?" ”

Zhu Tiejun said: "I have also read his files, and it seems that the composition set by the family is the middle peasant, which is not very high." My personal experience is very ordinary, I stayed in two factories and then transferred to the Hanhua factory. has been in the factory for more than ten years, and there is no bad record. During the turbulent years, he did not participate in any faction and belonged to the free faction. ”

"It doesn't matter if the middle peasants are middle-class." Yan Yuanhe said, "Actually, now the requirements for political trials have also been lowered, isn't the bloodline theory made by the Gang of Four, let's not do this." ”

Zhu Tiejun said: "Lao Hu may have suffered some impact in the original factory, so there are a little sports sequelae, this, you should be able to understand this, right?" ”

Yan Yuanhe said: "Of course I understand, there are too many people who have this kind of thought. In this way, after I go back, I will ask the National Defense Industry Office to send a letter directly to formally invite him to help us for a few days, so that he will not have any ideological burden. ”

Zhu Tiejun said with a smile: "You are a strict section chief, you are really unprofitable, I said that you came to send us blanks with such good intentions, it turned out that you were holding back to dig our corners." ”

Yan Yuanhe sighed and said, "Director Zhu, don't you know, we are also in a hurry." Now the troops are clamoring to update their equipment, and we are under a lot of pressure. However, there are only so many technicians, and they are not young in age. The foundation of the younger generation is too thin to take on key tasks. The knowledge of the older generation is too old, and many of them are learning Russian, and it is difficult to read English materials. Let's talk about this computer, our factory also has a few Apple computers, but there are very few people who can use it. ”

His last sentence was said with a smile, of course he also knew that wood mold workers like Populus euphratica were different, and if the workers of the entire Hanhua factory had this level, then this would not be Hanhua Machinery Factory, but Hanhua University.

After Yan Yuanhe sent the blank, he stayed in the Hanhua factory, and followed Lin Zhenhua and others every day to ponder the spindle processing. Yan Yuanhe himself is a college student in the 50s, and his skills are also very good, and he can put forward good opinions on many issues, so he gradually got acquainted with everyone.

The processing work has finally begun, and the early stage is some very routine processing. First, the end face is milled with a milling machine, the center hole is drilled at both ends, and then the center hole is used as a positioning reference to rough turn the outer circle on the horizontal lathe. After this step is completed, there is a heat treatment process, which qualifies and tempers the surface, and then does semi-finishing to turn out the contour of the spindle. This process is not difficult for Hanhua Factory, but in order to ensure quality, Luo Qinsheng still specially appointed two high-level machine tool workers, Peng Gang and Zhou Houcheng, to carry out the work.

After the semi-finishing is completed, the spindle in its prototype is again heat-treated, surface quenched, and then the finishing phase begins.

The most difficult and exciting aspect of finishing is the process of faux 5-axis machining. After painstaking calculations, Hu Yang and Lin Zhenhua obtained the envelope equation of each special-shaped surface, and then cooperated with Wei Jingwen to transform the equation into the coordination relationship of the four axes on the machine tool.

Peng Gang and others now have an experience of this set of technology, the process document written by Hu Yang is very clear, what they have to do is just to accurately position the workpiece according to this document, and then with the assistance of the fixture with linkage relationship, cut curve by curve, and the result of several curve cutting can form a specified surface.

"That's how you achieve five-axis machining." Yan Yuanhe stood aside, looking relaxed. As a technician in the military system, his understanding of five-axis machining is even greater than that of everyone in Hanhua Factory.

"Strictly speaking, we only have four axes, and the fifth axis is done by hand." Lin Zhenhua corrected him and said, "Our calculation can reduce the number of re-clamping and positioning from infinity to an acceptable level, and then the workers will re-clamp multiple times to complete the cutting of each face." ”

"It's amazing to be able to do that." Yan Yuanhe sighed, "I didn't expect that the highest level of processing would be here with you." I don't know if the military industrial system in other places can do this, at least, there is no enterprise in the system of the Jiangnan Provincial Defense Industry Office that can do this. ”

Lin Zhenhua said with a smile: "Section Chief Yan, our technology is not confidential, if your military system needs to carry out five-axis machining, we can do it for you." However, we still need to charge a little bit for this fee, what do you think? ”

Yan Yuanhe asked half-jokingly, "How do you charge this fee, can you tell me about it?" ”

Lin Zhenhua came to the spirit, he crossed his fingers and said to Yan Yuanhe: "Our charges are very reasonable, and the items charged are also very clear, you see, mainly including design fees, computer machine hours, machine tool technical transformation costs, working hours, electricity costs, material costs, machine tool wear and tear costs, site occupation fees, meal fees, education surcharges, family planning ......"

"You Xiaolin!" Yan Yuanhe was amused by Lin Zhenhua, these days, he already knows that Lin Zhenhua is a living treasure, and he will make a little strange from time to time. After laughing, Yan Yuanhe asked in a low voice, "Xiaolin, you really haven't thought about working in our system?" As a special industry, our wages are one level higher than those in the local area. ”

Lin Zhenhua shook his head vigorously: "No, no, Section Chief Yan, don't beat my idea, I already have a master." ”

"What about Lao Hu? I've heard that you have the best relationship with him. ”

Lin Zhenhua said: "Lao Hu, I advise you not to make up your mind." I talked to him, and he said that he didn't want to go to your side, he had his own problems, so you better not force people to make it difficult. ”

In fact, Lin Zhenhua has not talked to Hu Yang about this issue in the past few days, but he knows that since Hu Yang refused Yan Yuanhe's invitation, he must have his ideas. Lin Zhenhua has always had a conjecture, that is, there must be something hidden in Populus euphratica's life experience, otherwise, as an outstanding person like him, he should not be buried in this small Hanhua factory. Populus euphratica is by no means a thing in the pool, and an ever-red machinery factory should not be able to accommodate his big dragon.

"It's a shame." Yan Yuanhe said. He had tried Populus euphratica several times, but each time he was flatly refused.

Of course, Yan Yuanhe also thought about going through the organizational procedure to poach Populus euphratica in a daze, but after thinking about it again, he still gave up this idea. The forcibly twisted melon is not sweet, if you can't get Populus Hu to go with him willingly, even if you get it, you can't let him play a role. Besides, Populus Hu is a person who belongs to the system of the Light Chemical Department, although the military has a certain amount of power, but if the Light Chemical Department refuses to release people, it will be troublesome enough to pull up the skin in the middle.

"Section Chief Yan, I'm serious with you." Lin Zhenhua said, "Now the times are different, in developed countries, the military industry and civilian are not separated, the Boeing Company of the United States, isn't it a dual-use military and civilian?" If our country's defense industry wants to develop, it cannot be done behind closed doors, but should actively cooperate with civilian industry. You can consider the things I said earlier that can do processing for you. In terms of cost, we certainly won't open our mouths. ”

Yan Yuanhe nodded: "I understand what you mean, I will report to the leader after I go back." ”

"Okay, I'm waiting for your news."

Lin Zhenhua was overjoyed in his heart, he didn't expect to be able to inadvertently catch the line of the military. Ever since he developed the five-axis technology, he has been thinking about how to turn it into a means of making money. You must know that under the condition that Western countries block the five-axis linkage technology to China, if he can provide this imitation five-axis processing service, then it is possible to offer what kind of sky-high price.

Think about it, this time the Light Chemical Department organized a breakthrough, didn't Xie Chunyan let it go, saying that it could be borne within 30,000 yuan? This is just a spindle that costs 300 US dollars, and according to the calculation of the working hours of the Hanhua factory, it is estimated that it will not even be able to use 300 yuan, which is a hundred times the profit.

Five-axis machining is an artifact, and the current domestic civilian market is not large, but it is difficult for the military to say.

Otherwise, tomorrow I will go to the TV to advertise: Hanhua Industrial Company, which provides high-precision multi-surface processing services, refines intercontinental missiles, and various aircraft carriers......

Thinking of this, the corners of Lin Zhenhua's mouth showed a harmless smile of humans and animals.

－－－－－－－－－－－－－－－－

Continuing preview: Released this Friday, please keep this month's monthly pass.