Chapter 28

At the CNC workshop, Yunfei's depression in the machining workshop was swept away.

The CNC workshop not only has a large space, but also the installation of each equipment is reasonable. The most important thing is that Yunfei has strict requirements for these workers trained by himself since the first three CNC machine tools were running.

The CNC operator traded from camart company is a great wealth for Qingfeng machinery. At least, most of the CNC workers who have received systematic training have largely solved the demand of Qingfeng machinery for skilled CNC operators in the initial period of time, making these equipment benefit from moving from camart company to Qingfeng machinery. If camart had only found a technician who was familiar with NC machining technology, then this cheap would not have been occupied by Qingfeng machinery.

CNC machine tools in this era are not as fast and convenient to operate as those in later generations. Computer programming in the later generation is almost still in a state of secrecy on the Chinese mainland. There are few computers in China. For the cadcam software used in computer design and programming, few people can be found.

In this era, due to the existence of Batumi embargo, the openness of CNC equipment to the Chinese market is still very low, especially high-end precision machine tools. So far, it is estimated that only a few machining centers are placed in those research institutes. Those so-called multi axis machining centers are not machining centers in the real sense.

Even after 20 years, the real five axis machining center still belongs to the world's top machine tools.

If you can't buy high-end precision machine tools, of course, there will be no supporting computer design software. Therefore, in the early 1990s, more than 99% of China's CNC equipment were manually programmed.

Manual programming of complex parts has very high requirements for NC technicians. The machining of complex surfaces requires not only a large number of calculations, but also a considerable understanding of the equipment. Technicians who can manually program complex parts can not be trained in just a few months.

Yang Guang, who was promoted by Yun Fei as the director of the NC workshop, was one of the two NC engineers of the original camart company. It's a senior technician from the aerospace system. I don't know how he was hooked up by camart company. Finally, Qingfeng machinery was cheaper.

From to the CNC workshop, Yun Fei never left the workshop where he spent countless efforts.

Because these numerical control equipment come from several years and countries, no one can play with all the equipment except from later generations, who have a lot of knowledge about the numerical control systems of the United States, Rb and Germany.

Even if cloud is not, it can only rely on the foreign language materials at hand to explore by itself.

As soon as he entered the CNC workshop, Yun Fei was entangled by Yang Guang and Feng Yumin, another CNC Engineer from camart company.

Although the two have worked in state-owned factories for several years on CNC machine tools, most of them were CNC machine tools purchased in the late 1970s and early 1980s when China established diplomatic relations with RB America. CNC lathe, there is no problem for them, but the programming of complex parts of CNC milling machine gives them a headache.

Many complex parts programming of NC milling machine must be designed to complex NC operation. Especially when the NC system processes the surface, the calculation of Boolean operation is even more huge. For the complex operations of intersection, union and difference between several geometries or even dozens of geometries, if there is a slight data error or a certain place is not considered, the parts will have to be scrapped.

Unlike later generations, there are a wide variety of cadcam software. As long as CAD software is used to complete the modeling of parts, and then CAM software is used to automatically calculate the parts to be processed, the software will automatically generate programs.

For Boolean operations, Yun Fei, who is not good at mathematics, can't compare with Yang Guang and Feng Yumin, the first undergraduates after resuming the college entrance examination.

Although the calculation is not comparable to these two people, but the calculation method knows more than these two people. Since these two guys arrived at Qingfeng machinery two months ago, Qingfeng machinery dares to connect no matter how complex the parts are. Especially in the mold processing business, countless complex cavities need a lot of calculation. In the era of no computer and no mathematics talents with professional background, it is unimaginable difficulty.

After 10 a.m., when Yunfei was still guiding Yang Guang and Feng Yumin in NC processing technology, Luo Xiaoli came and told him that camart company had driven several cars and came to the factory with a large group of foreigners with high noses. Now she is coming to the NC processing workshop.

Hearing that camart company brought customers, Yunfei couldn't care to communicate with them any more and hurried to the door of the workshop. The customer is God. When God comes, he, the deputy factory director, should welcome him anyway.

Seeing Yunfei at the door of the workshop, Wang Qingfeng, dressed in a suit and tie, introduced him to a crowd behind him. It is estimated that the translators invited by camart company or brought by these foreigners themselves. For a time, English and German rang with Wang Qingfeng's words.

"Ladies and gentlemen, this is Yun Fei, chief engineer and deputy factory director of Qingfeng machinery. If you have any questions during the visit, you can ask President Yun directly. "

As soon as Yun Fei arrived at the door of the workshop, he met seven or eight white people in their forties and fifties. He couldn't tell which country these foreigners came from. There are too many English speaking countries in the world. But when he heard German, which he could only know a small number of words, he understood that at least two or three of these foreigners came from Germany.

In the late 1980s and early 1990s, the labor costs of the whole Europe and the United States increased significantly, and the blowout development of their NC industry was born in this environment. With the Chinese mainland's reform and opening up, a large number of state-run enterprises are skilled workers to lay off and reemployment. A large number of foreign enterprises have been looking at the labor cost less than 1/5 or even lower in their country.

The first batch of foreign-funded enterprises built factories in Chinese mainland. The low labor cost and tax exemption policy of this large population country not only brought the bankrupt parent company back to life, but rapidly expanded the market share. This has led more foreign companies and even large companies to turn their attention to Chinese mainland.

"Mr. Yun, I've heard so much about it! I'm Ren Zhiguo, deputy manager of camart company. These are customers from the United States and Germany. If we win them, not only our company will benefit immensely, but also your Qingfeng machinery. It is estimated that the scale will be expanded by three or five times. " Ren Zhiguo dared not despise Yunfei, a half child whose beard had not yet grown.

Hearing the introduction of the interpreter, several foreigners opened their mouths in surprise. Such a young chief engineer can only appear in China, a country with red regime!

Now they have no hope for this trip. If it hadn't been for the senior management of camart company to admire this small machinery factory with no more than 100 equipment and workers in their early 200's, they didn't even have interest in understanding the company. If camart hadn't shown them the stainless steel thin-walled parts samples made by Qingfeng machinery, how could they agree to investigate this small factory.

When I arrived at the factory, I found that the owner of the factory didn't know anything about his own factory, especially in technology; At this time, I told myself that a 17-year-old child was their chief engineer, responsible for the technology of the whole factory!

"Hello and welcome to China's most modern factory. During the visit, if you have any questions, as long as it does not involve trade secrets, I will answer them in detail. Let's look at the CNC workshop first. " Yun Fei finished, ignored the foreigners who looked suspicious and despised, and walked towards the interior of the workshop.

On the edge of the workshop are the latest models of CNC equipment bought from camart company.

"This is our latest purchase of CNC lathes and CNC milling machines from Germany and Rb. Of course, there are processing centers from fadal in the United States. Welcome your valuable comments. " Yun Fei introduced the NC machining workshop to foreigners. He knew that these devices were considered as high-precision machine tools in Chinese mainland. But in foreign countries, they were not even medium.

However, he won't tell Foreigners about Qingfeng machinery without computer-aided design software.

The appearance of a large group of foreigners with high nose and blue eyes did not stop the workers operating CNC machine tools. While operating the machine tool, the workers use the micrometer to check the size of the last processed part in their spare time.

This makes foreigners nod and shake their heads.

"Mr. Yun, I'm Carlos from the United States. For the workers of your company who inspect the dimensions of processed parts so frequently, I would like to ask you, is this your workers' lack of confidence in themselves or in these CNC machine tools? " A tall, thin white man in his fifties suddenly asked Yunfei.

"Mr. Carlos, I have to say that I admire your keen observation. Please don't doubt that this behavior of our workers is not because they are not confident about themselves, let alone equipment. They are all skilled workers who have been systematically trained by themselves. The reason for doing so is to be responsible for our customers. You must know better than I do about the stability of quality when CNC machine tools produce large quantities of workpieces. Our customers don't have high requirements for us. They often give us a tolerance range of 0.1mm or more, but we will control these tolerance ranges within 0.04mm, which is conducive to the customer's interchangeability requirements for parts and improve the service life of parts, so as to improve the market competitiveness of our customers. Of course, this is mainly because of our demand for stable business. I don't think any company wants its customers to go bankrupt, which will affect its development. What do you think? "

After Yun Fei finished this paragraph directly in English, Carlos couldn't help giving a thumbs up. The other foreigners applauded. They did not expect that such a young Chinese could speak fluent English.

A German in his forties named Maxim didn't believe Yun Fei's words. He thought that the young engineer was bragging. He ran directly to an operator, picked up the micrometer on the workbench and began to measure the produced parts.

After sampling the parts of an operator, almost every operator produced parts. In the end, he had to give a thumbs up. Because, among all the parts he sampled, the error of the same kind of parts in the same batch did not reach the 0.04mm mentioned by Yun Fei, only less than 0.01mm.

In Germany, under mass production, it is difficult for workers to control the error to such a small range.

"Mr. Yun, please forgive my previous doubts about you. Your workers are the most advantageous skilled workers in the world. " Yun Fei admired the seriousness of the Germans.

Although foreigners laugh at the so-called most advanced machine tools of Qingfeng machinery factory, they still admire the quality of parts processed by these CNC equipment.