industrial overlord

Chapter 89 Complex Surface Machining
After chatting about the cupboard, Hu Yang asked: "Xiao Lin, why are you free to come and sit with me today, is there anything you want?"

Lin Zhenhua said: "It's okay, I'm upset, I want to talk to someone."

"Is it because of the reporter's affairs?" Hu Yang asked. The reporter's interview was well known in the factory. Hu Yang has always cared about Lin Zhenhua, so naturally he was very concerned about this matter.

Lin Zhenhua nodded.

Hu Yang continued to ask: "The reporter mainly covers what matters, does it affect you?"

Lin Zhenhua said: "The original intention of their visit was to learn about housing allocation. I got a flat, and someone was jealous and wrote an anonymous letter to the newspaper to sue me. I didn’t pay much attention to the matter of the house, but started to pay attention to the contracting issue of our labor service company, and wanted to write an internal reference and report it to the higher authorities.”

"Internal reference?" Hu Yang was startled, "How could you cause such a big mess?"

"Is it serious?" Lin Zhenhua asked back.

"What are the backgrounds of those two reporters?"

"One of the younger ones belongs to the Jiangnan Daily, and the other, who is a little older, belongs to the Jiangnan Branch of Xinhua News Agency. The one who wants to report for internal reference is the one from Xinhua News Agency."

Hu Yang took a deep breath: "Insider of the Xinhua News Agency, Xiao Lin, you've made it through the sky."

Lin Zhenhua said: "Old Hu, I think it's good to be a genius. The country now encourages exploration, and Mr. Deng proposed to cross the river by feeling the stones. If things like our service company are left at the grassroots level, the cadres below may sympathize. But I dare not take responsibility. If this matter can reach the sky, if the higher-ups say a word, maybe everything will be easy to handle."

"The power of the sky is unpredictable." Hu Yang said, "Xiao Lin, you are so young, you don't know how powerful you are."

Lin Zhenhua said: "Old Hu, I don't think it will appear again, right? At best, there will be some small repetitions. With Mr. Deng at the helm, it should be fine."

Hu Yang hesitated and said: "Master Deng's thinking is very open. Yes, it's really hard to say about this kind of thing. Maybe it's because I'm too timid. Xiaolin, what you're doing now is the contract system, performance pay Ah, two years ago, it was a matter of losing your head. Although the managers at all levels turn a blind eye, but in case, it will be troublesome. If everyone covers this matter, it doesn't matter Yes, now that it has been reported as an internal reference, I am afraid that everyone will not be able to cover it up if they want to."

Lin Zhenhua said: "Old Hu, I feel that it won't happen, don't worry."

Hu Yang wryly smiled and said, "I'm not as optimistic as you. We are all old people, so we're afraid."

Lin Zhenhua can fully understand Hu Yang's worries. In that era, except for those who traveled through time, no one dared to make such an assertion.Everyone's guesses about the future are limited to big or small, and "no" is not an option.

Lin Zhenhua couldn't explain his understanding of the future to Hu Yang, so he had no choice but to bite the bullet and say, "Old Hu, I'm going to risk it too. Communist Party members, you must not be afraid of beheading, going to jail, or getting your wife divorced..."

"You boy, who can't learn from you, you have to learn from the Gang of Four." Hu Yang was amused by Lin Zhenhua, because the words Lin Zhenhua quoted had already become a joke.

"Old Hu, you are very free now, and you have time to help me make furniture? Why, are all those books finished? Are there any new books you need?" Lin Zhenhua changed the subject and asked casually.

As soon as he mentioned reading, Hu Yang's spirit came back again. He held Lin Zhenhua's hand with his hand stained with paint, and said, "Xiao Lin, you came just in time. I read the book "Complex Surface Processing" that you bought for me these days. ", very inspiring."

As he said that, he didn't care whether Lin Zhenhua was interested or not, so he brought a pile of papers from somewhere, pointed to Lin Zhenhua and said, "Xiaolin, look, for a curved surface like this, traditionally we can't use machine tools at all. processing, because we cannot design the feed path of the machine tool. When encountering such a curved surface, we can only process it by hand, and the workers file it out bit by bit with a file. Not to mention the production efficiency, the key is this The workpiece produced by the file, the surface roughness, residual stress and other indicators cannot meet the design requirements... Do you understand?"

Lin Zhenhua understands this point. In addition to considering the shape of the machined product, machining is also particular about the machining process.Even if the shape of the parts processed by high-speed machine tools is exactly the same as that of the parts filed by hand, their physical properties will be very different.He nodded and said, "I understand a little bit, you can continue."

"I have been thinking about this problem for a long time. These days, I read your book "Complex Surface Machining", which talks about how to use the principle of envelope curves to divide the processing of a curved surface into several times. The feed movement of the workpiece walks into a specific curve, and after repeated many times, the processing surface we require can be formed. I used the finite element analysis method you taught me, and then used the computer to calculate, and I have simulated this A processing process. You see, this is the process document I wrote."

Lin Zhenhua looked at the pile of drawings that Populus euphratica gave him for a while, and asked hesitantly: "Old Hu, according to the processing technology you mentioned, the workpiece on the gantry milling machine not only needs to be fed back and forth and up and down, but also To add its own rotation, this is equivalent to the machining process of a five-axis machine tool."

"That's right!" Hu Yang slapped his thigh, he turned his face to Qin Ying and said, "Xiaoying, take a look, I said that Xiaolin must know how to do it, right? You can tell the truth."

"Come on, old Hu, how can we have five-axis machine tools?" Lin Zhenhua asked, "Five-axis machine tools are restricted to Batumi, and even if Sino-US relations are in the honeymoon period, it seems that no one has heard of any unit that can buy them." Bar?"

Hu Yang smiled and said: "Xiao Lin, this is what I want to tell you. With this design, I only need to make some small modifications to the existing machine tool to imitate the effect of four-axis. Of course, even if it is four-axis axis, our motors, precision screws, and precision bearings can’t keep up, and we still can’t reach the precision of foreign machine tools. But don’t forget, we have people, we have senior technicians with unique skills, Their experience can make up for the lack of machines."

"Let me take a look." Lin Zhenhua followed the idea introduced by Hu Yang and continued to study the process documents written by Hu Yang. Only then did he realize that in many operations that should have been automatically realized by the five-axis machine tool, Hu Yang has added manual labor. The elements of intervention include tool setting, center correction, micro-feed, etc. Simply put, this is equivalent to the worker cutting one knife at a time with the assistance of the machine tool. If the worker's technology is high enough, he can guarantee every step If they are all accurate, then the effect of five-axis machining can indeed be achieved. In terms of precision, it may even be higher than ordinary five-axis machine tools.

"Old Hu, you are really amazing." Lin Zhenhua was really convinced.

"How about it, Manager Lin, can you find a chance to have a try?" Hu Yang looked at Lin Zhenhua hopefully, and said, "Just use my blueprint to try it out, including all kinds of processing methods."

"What kind of artifact is this?" Lin Zhenhua asked with a frown while holding the blueprint drawn by Populus euphratica.

The workpiece on this drawing looks like the blade of an electric fan, but it is larger.The entire fan blade is twisted into a complex curved surface, and the drawings can no longer reflect the requirements of this curved surface, and each curve can only be described by some strange equations.Workers definitely cannot understand such drawings. They can only process line by line according to the process documents written by Populus euphratica. Each step has specific scale requirements. As long as these requirements are met, the entire curved surface is processed. It's over.

Hu Yang seemed a little shy about the blueprints he drew. He said in a low voice, "Xiaolin, this thing is just an experimental prop, mainly to test the feasibility of the craft. As for the blueprints, I got them from the book you gave me." I copied it from above, it’s useless.”

For Hu Yang's explanation, Lin Zhenhua naturally had some doubts.But after looking at it for a long time, he couldn't think of any place where such a strange workpiece would be used. Perhaps, as Hu Yang said, the purpose of this workpiece design was only to test the feasibility of the processing technology. Otherwise, how could it be How to make it so complicated?

"Old Hu, what are you going to try?" Lin Zhenhua asked.

Hu Yang said: "I think, you are also a big official of the frontier now, and you should have some power. Can you ask the metalworking workshop to help you make it in the name of your service company. Ordinary workers can't do this. It must be Peng Gang. , Zhou Houcheng, and Sun Changyuan can do it."

Lin Zhenhua counted with his fingers: "Hehe, millers, lathe workers, fitters, and the technical elites in metalworking workshops, let you sweep them all in one go."

"I have stayed in the factory for many years anyway, and I still know who's skills are good." Hu Yang said.

"Okay, let me talk to the factory manager and say it is the task of our service company. I think the factory manager will agree. Master Peng and Master Sun were originally hired by our service company, but they were only loaned to the factory for use. " Lin Zhenhua said with a smile.

"There is another difficulty, which is the four-axis control circuit. I can imagine it, but I can't design it. I heard you said that you have an electronic engineering student from Beihang University. Can he do automatic control?" Hu Yang asked. road.

"Mr. Wei?" Lin Zhenhua said, "He is purely engaged in electronics, and he is not very proficient in automatic control. But it's not a big problem. I just work with him. He works on the electronic part, and I work on the transmission part. Two Stinky cobbler, he is as good as half of Zhuge Liang."

"I will also count as one." Hu Yang said.

(End of this chapter)