"Brigadier Guan said it well, manufacturing, especially the equipment manufacturing industry, is the foundation of our human race on all animals, and the cornerstone of all other industrial existence! After listening to Brigade Commander Guan's enthusiastic speech, I have strong confidence in the future development of the 291st Brigade! If we can make a contribution to it and give full play to what we have learned in our lives, we will have no regrets in this life! ”

Teacher Tang said with emotion, and the other teachers also nodded again and again, agreeing with his point of view.

Although the mobilization meeting for the establishment of the technical school was simple and the preparation was simple, in official terms, it was a successful and victorious meeting.

All the students were deeply moved by his words and were proud of the heavy responsibility they were about to shoulder in the future.

They have been tested by ups and downs, but their hearts are still innocent. When Guan Fei turned the future growth of the 291st Brigade into a kind of mission on their shoulders, they felt not hesitation and indifference, but excitement and excitement.

No matter how much suffering there has been, the blood has never disappeared from their veins, but it is buried deep in their hearts, deeper.

Once this enthusiasm is ignited, they will burst out with a huge motivation beyond people's imagination!

If this is true of the students, why is it not the case with these teachers?

They chose machinery and related majors, studying hard, isn't it to change the backward situation of the machinery manufacturing industry in New China? Although they stayed in the school to teach for various reasons, it is still a sacred mission to strive to cultivate as many machinery manufacturing talents as possible for the country.

Although they were forced to put it aside halfway, now, under the leadership of Guan Fei, they are about to take a crucial step to get back on the road from the transformation of C616, and their hearts have also become hot and difficult to control!

After Guan Fei presided over the inaugural meeting of the technical school, he handed over the students to the masters invited from China, and began to learn from being familiar with various processing equipment. Subsequently, together with Mr. Tang, he came to the finishing workshop where the C616 general machine tool was transformed.

The C616 is also placed here, and there are not many surprises on the device.

Finishing is only a part of the processing and manufacturing, the initial processing is to cut the blank to a large extent, so that the workpiece is initially formed, and the semi-finished product is manufactured for the next process.

Finishing, on the other hand, is the fine carving of semi-finished products to achieve a predetermined level of precision.

In the finishing stage, it is better to have more sophisticated manufacturing equipment, but it will not collapse if there is none. Finishing requires better workers, more detailed processing processes, and the degree of human eye recognition is enough to distinguish the subtle difference of 100 microns. Finishing of workpieces that are not too demanding can be done with the same equipment as in the initial machining stage.

That's obviously how the country thinks about it.

It's not that there are more sophisticated machine tools and equipment, but they think that the 291 Brigade simply can't use it and can't afford it! The highest level of ultra-precision machining and manufacturing capacity in China has reached the level of 0.1 micron, but it is prepared for real precision manufacturing and aerospace-grade products, how can it be sold to Guan Fei.

It's good to have C616, and I haven't given you a product from the fifties or sixties that it's good, this is a domestic idea.

In order to ensure the machining accuracy of the lathe and reduce the influence of the bed tremor on the machining accuracy, the base of the lathe is solidified with thick cement and the ground.

For the same type of lathe, due to the accident of the machining process, there will be a very small number of parts with high precision. Often, machine tool manufacturers will select such parts that exceed the design accuracy separately and combine them into higher precision machine tools.

Guan Fei tried the batch of C616 lathes transported back to the 291 Brigade one by one, and finally selected a lathe with the smallest accuracy error as the goal of this transformation. He had wiped all the parts very carefully, and under the light, each metal part exuded a faint metallic luster, and when he looked closer, he could even see the figure clearly.

Guan Fei led everyone to the side of the finishing workshop, where a row of tool cabinets was placed. The tool cabinet has no doors, like shelves. Due to the heavy loads, the shelves on each floor are up to three centimeters thick.

At this time, there are boxes placed on it, and there is only a simple number on the box, and there is no text description.

"These are the parts that we have customized from domestically." Guan Fei took out a rectangular cardboard box, opened it in front of everyone, and took out the stuffed paper, which contained a workpiece wrapped in oiled paper.

"This is ......" Mr. Tang and others are very good at theory, because they have no actual factory experience, they have little physical contact. They thought about it for a while, but they thought the shape was familiar, and they didn't figure out what the part was.

Guan Fei motioned for them to tear open the wrapper.

A teacher was in a hurry, and he tore open the oiled paper wrapped outside, and a shiny precision part appeared in front of them.

"Ah, it's a worm!" In the crowd, a teacher shouted.

"That's right! There are not only worms, but also turbines, screws, and chainrings...... "Guan Fei will customize the parts one by one, so they see."

These things are all made domestically by placing orders through the country. Only a very small amount of parts that cannot be manufactured in China were purchased by Sun Yaohua from Hong Kong. The last time Sun Yaohua went to Hong Kong, one was to send things to Zhou Xiaoshan, and at the same time, the accountants invited from China conducted the accounting audit, and on the other hand, he bought the things needed for equipment transformation through Hong Kong.

These things are not too high-end internationally, and they are not on the ban list. Sun Yaohua directly handed over the list to the middleman, asked them to complete the purchase, and then brought it back with the car, without any trouble at all.

Guan Fei wants to build many things by himself, with the assistance of biological auxiliary brains, he thinks that he is also an excellent eighth-level lathe, eighth-level fitter, and eighth-level welder, and it is not difficult to buy back materials to make parts by himself.

Unfortunately, the conditions are still too simple, and the 291 Brigade does not have perfect processing and manufacturing capabilities, let alone good heat treatment equipment. After a part is processed, if the correct heat treatment is not carried out, it will not meet the design requirements, and it can only be said that the appearance is good-looking, and there is no practicability.

"Look, this is the design drawing of the worm and the turbine...... "Guan Fei brought these teachers, but he didn't really hope that they would do the transformation of the C616.

There has been a long history of disconnect between education and reality in the country.

Textbooks have always been much slower than the industry, mainly because some new technologies that have not yet been fully recognized cannot be immediately written into textbooks, so as not to impart wrong knowledge to students. Therefore, there will always be a great delay between the teaching materials and the practice.

At the same time, there is no connection between domestic education and grassroots work, and teachers only impart theoretical knowledge in the classroom, but they themselves do not know how to do it. There is no connection between theory and practice, and the students who teach are usually eloquent, saying that they are invincible in the world, but they are not as good as an ordinary worker in practice.

Guan Fei didn't want these teachers to copy the domestic set in the 291 Brigade and teach some gentlemen to teach students who don't do anything.

He wants to let these teachers go into the factory through a variety of technical transformation projects, and use their knowledge to combine with practical work in a down-to-earth manner.

To put it mildly, his knowledge is hundreds of years ahead of these teachers!

In terms of the depth of knowledge alone, these teachers are not even worthy of lifting shoes for him. He has theories and even specific manufacturing drawings and processes, but there is a lack of people to turn them into reality, and what he wants is this kind of talent, as for theoretical research, he is more qualified to do it in China than him.

"You see, this is the strength of the worm design, the speed we designed is ......, and its torque force is calculated as ...... through the formula" Guan Fei spread the drawings on a tooling table, turned out a thick mechanical design specification, and worked with all the teachers on the spot to check the formula one by one for the design ideas, workpiece requirements, material selection, and processing points, and check the calculation on paper.

This is also a novelty for these teachers, and they are also very happy to do it. Although Guan Fei has already completed everything, and even the parts have been done by domestic manufacturers, they also know that at their level, it is too early to talk about technological transformation. Being able to digest and absorb the design made by Guan Fei, they feel that they have gained a lot.

After such a long period of contact, no one dared to treat Guan Fei as a stupid soldier anymore, with a high-minded and overlooking attitude. In fact, in comparison, they are the primary school students who should look up to others.

“…… The nut I chose here is zQsn6-6-3, and its wear resistance is ......"

Guan Fei was pointing to the material manual and explaining the material selection of nuts to everyone, when a teacher who leaned over to look at it suddenly said: "Judging from the manual, zQsn10-1 seems to be more suitable, why not use it?" ”

"That's right! Looking at the material strength, wear resistance and other attributes, zQsn10-1 is more suitable. But it's expensive, more than 10 times more expensive than 6-6-3! Our aim is to transform an economical CNC lathe, 6-6-3 is enough. Even if it is broken, it is not troublesome to replace, but the cost can be reduced a lot......" Guan Fei patiently explained to them.

Teacher Tang and the others nodded again and again.

This is the inconsistency between theory and practice, just engaged in theoretical research, everything is the best, and things may be very good, but the manufacturing difficulty and cost are much higher than other products of the same type. In actual production, if there is no special need, the manufacturer would rather reduce the performance a little, but also hope to be able to produce the product economically in large quantities.

"How much do you invest in these spare parts?" Teacher Tang asked with concern.

"Including this three-phase motor asynchronous, as well as control system components, as well as Z80 processors, data memory, 1,700 pieces!" Guan Fei didn't want to quote the prices of various spare parts.

The most expensive here is the Z84008 processor, which retails for $180, or 372 yuan.

Z80 is a new processor launched last year, it is actually compatible with the 8086 processor, the initial frequency has two megahertz, four megahertz, eight megahertz three grades.

Guan Fei bought the most expensive one.

In this era, the microcomputer is still a conceptual thing, and the processor is mainly used in industry. The original intention of the Z80 design is to compete with the 8086 market, and the requirements are not only to use hardware design to meet various special requirements, but also to adapt to various application needs through software means.

Because of its fast computing speed, low price, and good scalability, it was well received as soon as it was launched. After its introduction in the 80s, it was deeply developed and countless industrial single-board computers based on Z80 were designed and used in various industrial equipment.

There are a large number of examples, of course, Guan Fei prefers it as the control center, and the biological auxiliary brain only needs to be slightly modified according to the specific circuit and component parameters, and it can be directly referenced.

"More than 1,700 yuan!"

Unexpectedly, Guan Fei easily quoted the expenses, so he called Mr. Tang and they gasped.

"So all, I mean, how much will it cost to renovate the entire lathe?" Teacher Tang asked cautiously again.

"Five thousand nine hundred and twenty-six yuan and eight cents a cent!" Everything that should be bought was bought, and the domestic processing should be completed and shipped back, and the total price did not need to be estimated, and Guan Fei directly quoted the accurate figure.

"Nearly six thousand! It's worth half a lathe! "Teacher Tang, they were shocked.

With such a large investment, after the transformation is completed, can it still be called an economical lathe?

Their ideas do have some truth, and the transformation plan copied by Guan Fei is a design that has been continuously improved in the next two or three decades. Twenty or thirty years later, these designs are very economical, and the total investment is only one-sixth of the value of the machine.

But if the same design is done now, the price will go up. This is still the price at which the RMB is worth now, and if inflation is included, the total investment will be at least tens of thousands!

Guan Fei can't do it, which mountain is there, which song to sing, he can only reduce the renovation cost as much as possible under the existing conditions.

The total price of the modified lathe is much higher, yes, but it's worth it!

"You have to count it this way. After the transformation is completed, the processing efficiency of the lathe will be increased by at least seven to eight times, but the labor intensity of workers can be reduced by more than 60%. And we don't have qualified workers yet, and if we do it manually, the scrap rate will be so large that we can't tolerate it.

But with a CNC lathe, a worker with short-term training can easily get started. The machining accuracy of CNC lathes is stable, as long as the operation system is strictly observed, it is difficult to scrap the processed parts, which actually reduces the production cost.

More importantly, after the improvement, the machining accuracy of the lathe will be increased by about 50%, and the highest precision can reach 50 microns, which has exceeded the level of many precision manufacturing plants in China!

Invest half a lathe to get a new lathe with high precision, stable operation quality, low requirements for workers' operation level, and more than seven times the efficiency, which is actually very cost-effective! ”

Guan Fei spared no effort to preach.

Teacher Tang showed skeptical eyes, expressing doubts about whether he could achieve the effect he boasted by investing such a large cost.

If the transformation of ordinary C616 was so simple, it would have been popularized in large quantities in China, and he would have waited for him to do it?

Teacher Tang and others were silent.

Guan Fei bragged hard, and they just listened to it, whether the thing was really that good, or wait to see the real thing.