The process is not only related to the quality of the product, but also to the processing efficiency of the product.

Especially in the processing of some complex products, the process flow is particularly important. What kind of process is arranged in the front and what kind of process is arranged in the back must be strictly and reasonably designed.

The process engineer of complex high-precision and cutting-edge products must have rich processing experience in the workshop, and at the same time have rich theoretical experience. With rich theoretical experience and no practical operation experience, it is simply impossible to be qualified for the position of an excellent process engineer.

In Yun Fei's world, Yun Fei once heard a story, that is, a real thing happened to the aerospace system that was almost built now, but the construction and relocation had not yet begun. In the late 90s, when those veteran engineers and technicians were about to retire, in order to improve their scientific research capabilities and processing capabilities, the aerospace system networked a number of top doctoral students from key universities across the country.

Those top people are the real pride of the sky, one or two are incomparable, speaking of the theory of the head is the way, the new technology that appeared abroad, although they have not seen it with their own eyes, but they also understand it very thoroughly. In particular, they believe that they are fully capable of technical work such as product design and process design, which they have learned from books.

As soon as a few of the older engineers in charge of the process retired, the PhDs, who thought they were far better than the older engineers who had graduated from technical schools or high schools, forcefully changed the processes they had used for decades and implemented them throughout the factory.

Of course, the implementation of the new process can only be implemented with the consent of the factory leaders. The graduate students took out the theoretical knowledge they had learned all their lives, and several people took turns to fight, fooling the leaders into a daze.

Theoretically, those college students design their own products and design their own production processes. There was no problem at all, especially since their newly designed process was 15 percent more efficient than the previous production process, and quality control was much easier. However, in many companies, the implementation of new processes does not require the approval of the leadership, because the process engineer represents the highest level of technical skill in a factory.

But I didn't expect that when most of the products were processed to the most difficult post-process, everyone was dumbfounded. A new process that theoretically has no problems. At the time of the final finishing, the workers discovered that what could theoretically be achieved, they simply could not do.

Just that time, Yunfei's current neighbors lost hundreds of millions of yuan! Moreover, the intangible losses are far more than that. At that time, the batch of products was a military product exported to foreign countries, and the original delivery date was specified, but when the other party wanted to accept the products, it was found that many products were still in a rough state!

That's it. The largest enterprise in the Economic Development Zone at the time began to decline, and in the early twentieth century, many of the affected factories went bankrupt, and at the end only a few factories were left with military production workshops. It was only when Yun Fei left that he slowly recovered.

"What kind of process should be arranged for the finishing of the grinder, which will be done on your lathe process?" Yun Fei asked the turner in his forties with a gloomy face.

Originally, in the inspection room, I saw that the lathe worker quarreled with the quality manager transferred back from the Pearl River Delta by the boss, who was originally a young female inspector left by the 9327 factory. If one is dissatisfied, when the time comes, they will beat up their new leader, and then the matter will be big. Under the eyes of the leader of their finished product inspection team, she went to the workshop director of the finishing workshop to save the scene.

"Director Fang, please hurry up, Master Chen quarreled with Manager Cheng just now, in case the two of them got into a fight......" The young female inspector quickly walked towards the finished product inspection room, and turned around to urge Fang Qiang, who was also promoted from the master of the workshop, urged.

"What are they arguing about?" Fang Qiang, the workshop director, is very popular among the workers, but he does not have much prestige. Originally, most of the technical workers in the 9327 machining workshop have stayed, although he is a first-class technical worker and has extremely rich experience, but this is only one of the most exquisite and experienced technicians in the whole workshop.

For him to be the workshop director, the rest of the people will not be convinced.

Especially the guys who are on his level.

"Master Chen turned the finishing that was supposed to be processed by the grinder directly to the size." The young test walked forward quickly while explaining to Fang Qiang behind him.

The workshop director's office is quite far from the inspection room. You must know that the whole workshop is hundreds of meters long, and the workshop director's office and the finished product inspection room are just at both ends of the workshop.

Hearing the words of the young test, Fang Qiang understood what was going on.

He has been working in the workshop for decades, and knows the workers who have a good hand in their hands. Especially now the bonus of the entire Jiuyi Heavy Industry is constant in terms of output.

Although the lathe process has a large amount of processing and a lot of man-hours, the process of grinding machine processing has less margin and high man-hours for lathe processing. Especially in the batch processing, these division of labor step processing process, in the most difficult time of fine turning, as long as the car is right, a direct knife turning can achieve the accuracy of grinding machine processing, even if the surface roughness can not be compared with the grinding machine, as long as it is polished with sandpaper, it can also meet the requirements.

Fang Qiang quickened his pace, and as soon as he arrived outside the inspection room, he heard Yun Fei's cold voice.

"Say, who arranged it for you? Who arranges the process of the lathe dry grinder? Yun Fei saw the forty-year-old lathe in front of him glance to the side with a rebellious face, and the anger that had been suppressed in his heart was already on the verge of revenge.

For the workers who do not process in accordance with the process requirements, the reason why Yun Fei is so angry is not that he does not believe in the skills of the workers, but that the precision machining process after doing the most difficult work on the lathe is too much to test the skills and experience of the workers who operate the lathe.

The large supporting plate in the upper Z direction (longitudinal) of the lathe walks the tool, and a small grid is rotated to one millimeter; In the X direction (transverse) of the middle plate, rotate a grid, the tip of the tool moves 5 wires (0.05mm, small lathes such as 6132 machine tools, rotate a small grid of the tip to move 0.02mm), in the diameter machining, it is 0.1mm, because the workpiece on the lathe is rotating, the tool moves 1 mm, and the diameter of the part will be cut off by two mm.

The grinding machine is different, the grinding machine belongs to the precision machining equipment, and the machine tool grade alone is one level higher than the lathe that belongs to ordinary processing. The scale on the grinding machine, for each small rotation of the grid, the feed is only 0.001 mm, that is, only one μ.

If workers want to process the tolerance range on the lathe with less than a trace of precision size, they must rely on their own experience to divide a grid into ten or even one hundred equal parts to carry out the most difficult finishing feed, as long as there is a slight deviation, it will cause the size of the parts to be out of tolerance. There is no such problem in the grinding machine, the error range of several μ, within the processing range of the equipment itself, before the processing of the tool, as long as the measurement is accurate, how much is the difference, how many grids are directly entered, there will be no problems at all.

The biggest problem of grinding machine processing is that the grinding wheel is worn and the processing size is too large, and then the error can be guaranteed to make up for the difference.

"Fang Qiang, how did you become the workshop director? I asked you to be the workshop director and manage the site of the entire factory, and that's how you did? Seeing Fang Qiang come in, the anger that Yun Fei had been suppressing finally burst out.

The process of the lathe dry grinder, to say that he, the director of the workshop, is not clear, it is simply a lie.

"......" Fang Qiang was so depressed that he couldn't even speak.

"Did you, the workshop director, arrange it for him, or did their team leader arrange it for him? At the weekly production meeting, the production department is emphasizing that the process must be strictly followed. A spindle plus materials and labor for hundreds of dollars, in this most difficult process to scrap, so what use do I want you to be the workshop director? Yun Fei didn't pay much attention to the turner who caused this incident, but instead got angry directly at their head.

A workshop director, related to the production of the entire production workshop, is now the best embodiment.

"Chen Dongsheng, didn't I tell you that you should strictly follow the process route?" For Yun Fei's anger, Fang Qiang could only endure it, not long after the factory started, his precision machining workshop and several quality accidents, otherwise the young quality manager who had not even stepped on the site would not be in their precision machining workshop every day.

"Lao Tzu has done so much before, isn't there no problem? Horses have stumbled, people have misses, who will ensure that they will never make mistakes in their work? I'll pay attention next time, as for it? When Chen Dongsheng heard Fang Qiang's questioning, he felt very uncomfortable.

He is not worse than Fang Qiang's skills, in the end, he is just the squad leader of a lathe class, and Fang Qiang, a guy who is not a few years older than himself, actually became the workshop director, not only does not work, but even his salary is more than half higher than his own.

"That's what you did before?" When Yun Fei heard the words of Chen Dongsheng, he almost gritted his teeth and squeezed out this sentence.

Hearing Yun Fei's words, looking at Yun Fei's expression, Fang Qiang hurriedly gave Chen Dongsheng a look and asked him not to talk nonsense.

"Yes, the grinder can't finish anyway, what's wrong with me helping to do something?" Chen Dongsheng ignored Fang Qiang's eyes and said to Yun Fei with his head.

Yun Fei, a young man, just made some money by walking shit luck, and in front of his master, he was just a paper tiger. Anyway, these workers are now just workers of the 9327 factory, not the workers of Yunfei Jiuyi Heavy Industry. Yun Fei, the boss, doesn't even have the right to dispose of himself.

"You mean you helped, you scrapped the product, and I have to thank you, right?" Yun Fei smiled, he was angry. (To be continued......)