Refined 104 aircraft carriers of various types

  Huyang turned around and saw a stranger behind him, but he didn't think it was particularly strange. In order to tackle this problem, the Light Industry Bureau had sent several engineers, and Huyang naturally took Yan Yuan as one of them. He explained:

  "These several non-standard surfaces on this shaft are not for beauty, but each has its own function. From their functions, we can infer their curves. It's just that the calculation of these curves is relatively complicated, and Xiao Lin and I used the finite element method to calculate them, otherwise it would be really difficult."

  "Do you understand finite elements?" Yan Yuan was somewhat surprised.

  Hu Yang nodded and pointed at Lin Zhenhua: "He is my teacher."

  "Comrade, don't listen to Old Hu's nonsense," Lin Zhenhua hastily shook his head. "He is now my teacher."

  Yan Yuan and Ziran also didn't believe that Lin Zhenhua was Hu Yang's teacher. From the conversation between the two earlier, it seemed that Hu Yang was more impressive. He said to Hu Yang: "You're called Hu Yang, right? After your project is over, I'd like to invite you to our place to guide us on some work. We have many complex calculations and we're looking for an expert in finite elements."

  "What are you guys doing?" Hu Yang asked in surprise. The light industrial hall system's factories mainly produce some already standardized products, plus some daily equipment maintenance and other work, seemingly not involving any complex calculation problems.

  Yan Yuan said matter-of-factly: "Of course it's trajectory calculations, what else could we be calculating?"

  Poplar was startled: "Comrade, where are you from?"

  "He is the technical section chief of Changhong Factory, Yan Yuan and Comrade. This time's roughcast piece was personally delivered by him." Zhu Tiejun introduced with a smile from behind.

  "Oh, Director Yan, welcome, welcome." Hu Yang hastily shook hands with Yan Yuanhe, a respectful yet distant expression on his face.

  Yan Yuanhe didn't think so. After shaking hands with Hu Yang, he said: "How about it, Comrade Hu Yang? Is that settled?"

  "This, let's discuss it later." Hu Yang hastily slipped away, "Involving military and industrial aspects, I'm not quite suitable for it, hehe, my family background is a bit high..."

  Having said that, he didn't wait for Yan Yuan and others to say anything, and he pulled Lin Zhenhua back to the computer side.

  Yan Yuanhe watched as Hu Yang ran off, then turned to ask Zhu Tiejun: "What's going on? Does Comrade Hu Yang have some political problem?"

  Zhu Tiejun said: "I've also seen his file, and it seems that his family's class status is middle peasant, which isn't very high. His personal experience is quite ordinary, having worked in two factories before being transferred to the Hanhua factory. He's been in the factory for over a decade and hasn't done anything wrong. During the chaotic times, he didn't join any faction and belonged to the carefree faction."

  "It doesn't matter about the Zhongnong," said Yan Yuanhe, "Actually, the requirements for political examination have also been lowered now. The theory of blood lineage isn't something that the Gang of Four came up with, is it? We don't advocate for this kind of thing anymore."

  Zhu Tiejun said: "Old Hu may have been subjected to some impact in the original factory, so he has a bit of post-traumatic stress disorder. You should be able to understand that too, right?"

  Yan Yuan and Dao: "Of course, I understand that there are too many people with this idea. Alright, after I go back, please ask the National Defense Department to issue a formal letter of invitation for him to come over and help us out for a few days, so he won't have any mental burden."

  Zhu Tiejun smiled and said, "You, Director Yan, are indeed a man who doesn't get up early unless there's something to gain. I was wondering why you were so kind as to come all the way here to deliver these rough stones to us, but it turns out you've been itching to dig into our corners all along."

  Yan Yuan sighed and said, "Director Zhu, you don't know that we are also anxious. Now the troops are all clamoring for equipment updates, our pressure is huge. But there are only so many technical personnel, and the age gap is too big. The young generation's foundation is too shallow, they can't handle key tasks. The old generation's knowledge is too outdated, many people learned Russian, even reading English materials is difficult. Take computers for example, our factory does have a few Apple computers, but there are very few people who know how to use them, unlike you guys, where even a carpenter can use it."

  His last words were spoken with a smile, and he also knew that Hu Yang was an exceptional woodworker. If all the workers in the Hanhua factory had this level of skill, then it wouldn't be the Hanhua Machinery Factory, but rather Hanhua University.

  Yan Yuanhe settled down at the Hanhua factory after delivering the roughcast, and every day he followed Lin Zhenhua and others to discuss the main shaft processing. Yan Yuanhe himself was a university student in the 1950s, with a good foundation, and could put forward very good opinions on many issues, so he gradually became familiar with everyone.

  The machining work has finally started, and the initial stage involves some very routine processing. First, use a milling machine to mill the end face, then drill a center hole at both ends, and then use this center hole as a positioning reference on the horizontal lathe to roughly turn the outer circle. After completing this step, there is a heat treatment process to temper the surface, followed by semi-fine machining to turn out the contour of the main shaft. This set of processes is not difficult for Hanhua Factory, but in order to ensure quality, Luo Xisheng still specifically assigned Peng Gang and Zhou Houcheng, two high-level machine tool workers, to operate it.

  After semi-finishing processing is completed, the rough-shaped main shaft undergoes heat treatment again for surface quenching and then enters the finishing stage.

  The most difficult and exciting part of the precision processing is the process of simulating five-axis machining. Hu Yang and Lin Zhenhua went through painstaking calculations to obtain the envelope equations for various irregular surfaces, and then cooperated with Wei Jingwen to convert the equations into a cooperative relationship between four axes on the machine tool.

  Peng Gang and others have now gained some experience with this process, Hu Yang's process file is very clear, what they need to do is just follow this file, accurately locate the workpiece, and then under the assistance of fixtures with linkage relationship, perform cutting one curve at a time, after several times of curved cutting, it can form a specified curved surface.

  "So that's how you achieve five-axis machining." Yan Yuanhe stood by, watching with great interest. As a technical personnel in the military-industrial system, his understanding of five-axis machining was even deeper than that of Hanhua Factory's staff.

  "Strictly speaking, we only have four axes. The operation of the fifth axis is done manually." Lin Zhenhua corrected him, "Our calculations can reduce the number of re-clamping and re-positioning from infinity to an acceptable level, and then workers will do multiple re-clamping to complete the cutting of each face."

  "It's already remarkable that you can do this," Yan Yuan and sighed, "I didn't expect the highest level of processing to be here. I don't know if other places' military-industrial systems can achieve this, at least within the Jiangnan Province National Defense Industry Office system, no enterprise has been able to do these things."

  Lin Zhenhua smiled and said, "Director Yan, our technology is not confidential. If your military industry system needs five-axis machining, we can do it for you. However, regarding the cost, we still need to charge a little. What do you think?"

  Yan Yuan asked with a hint of joking: "How did you guys come up with this fee? Can you tell me?"

  Lin Zhenhua came to his senses, and with a flourish of his fingers, he said to Yan Yuan: "Our charges are very reasonable, and the items we charge for are also very clear. You see, they mainly include design fees, computer usage fees, machine technical modification fees, labor costs, electricity bills, material costs, machine wear and tear fees, site occupation fees, meal allowances, education surcharges, family planning...".

  "Lin, you little rascal!" Yan Yuanhe was amused by Lin Zhenhua's antics. Over the past few days, he had come to realize that Lin Zhenhua was a treasure trove of jokes and would often do something unexpected. After they finished laughing, Yan Yuanhe asked in a hushed tone, "Lin, have you really never considered working in our system? As a special industry, our salaries are one level higher than those in local areas."

  Lin Zhenhua shook his head vigorously: "No no, Director Yan, you mustn't get any ideas about me, I'm already taken."

  "What about Old Hu? I heard you two had the best relationship."

  Lin Zhenhua said, "As for Old Hu's side, I advise you not to have any ideas about it either. I've talked to him before, he said he doesn't want to go to your place, he has his own difficulties, so don't force him into a difficult situation."

  Actually, Lin Zhenhua hadn't discussed this issue with Hu Yang for the past few days, but he knew that since Hu Yang had refused Yan Yuanhe's invitation, he must have his own thoughts. Lin Zhenhua had always had a guess, which was that there must be some secret in Hu Yang's background; otherwise, as an outstanding person like him, he shouldn't be buried in this small Hanhua factory. Hu Yang was not a fish in a small pond, and a common mechanical factory couldn't contain such a great dragon.

  "What a pity." Yan Yuanhe said. He had tried to probe Hu Yang several times, but was rejected by Hu Yang each time.

  Yan Yuan had also thought about using organizational procedures to take Hu Yang away, but after careful consideration, he gave up on the idea. A forced melon is not sweet, and if Hu Yang was not willing to follow him wholeheartedly, even if he managed to get him to go, he would not be able to bring out his best. Moreover, Hu Yang belonged to the Qinghua Hall system, and although the military had some power, if Qinghua Hall refused to let him go, it would be troublesome to stir up trouble.

  "Director Yan, I'm telling you seriously," said Lin Zhenhua. "Nowadays, the times are different, and in developed countries, military and civilian industries are not separated. Isn't Boeing in the US both military and civilian? Our country's defense industry wants to develop, can't close the door and make a car, but should actively cooperate with civilian industry. The processing business I mentioned earlier that can replace you, you can consider it. As for the cost, we will definitely not open our mouths too wide."

  Yan Yuan nodded: "I understand what you mean, I will report back to our leader after I return."

  "Okay, I'm waiting for your news."

  Lin Zhenhua felt a surge of joy in his heart, he didn't think that he could unintentionally get hooked up with the military on this matter. Ever since he developed the pseudo-five-axis technology, he had been thinking about how to turn this technology into a money-making tool. It's worth noting that under the condition that Western countries have blocked China from accessing five-axis linkage technology, if he can provide this kind of pseudo-five-axis processing service, it is possible to charge any price.

  Think about it, this time the Light Hall organized a breakthrough, didn't Xie Chunyan say that within 30,000 yuan it's acceptable? This is just a main shaft worth $300, calculated according to Hanhua Factory's labor costs, it's estimated that not even 300 RMB would be used, this is a profit of one hundred times.

  This kind of five-axis machining artifact is currently not very popular in the domestic civilian market, but it's hard to say for the military.

  Alternatively, go on TV tomorrow and run an ad: Hanhua Industrial Company, providing high-precision multi-curve processing services, precision repair of intercontinental missiles, various aircraft carriers...

  At this thought, Lin Zhenhua's mouth corners revealed a harmless smile.

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  Advance notice: Launching this Friday, please keep your monthly ticket for this month.