"You guys, I hope this time can make you remember the lesson. Weapon design needs to be considered many aspects. If it were you soldiers, the weight of the design itself would be much lighter, allowing you to carry more things that can save your lives on the battlefield. As a result, the designers were unable to carry more because of the self-righteousness of the designers, and even had to carry one kilogram more when they ran away. What would you think?" After Liu Yijiu came down, he called Yang Shan and the others to the cafeteria, ordered a few small stir-frys, opened a bottle of Lao Baigan, and explained to them while drinking.

"Master, we remember that from the beginning, you told us that weapon design must take into account the use of soldiers. Even many of them are just our considerations. In fact, it may not happen. As long as it happens once, it will be a fatal flaw for weapons..." Qin Huaibao was calm.

Liu Yijiu did warn them at the beginning that every day when designing, he taught them various design knowledge and warned them some things that need to be paid attention to when designing weapons. Among them, design modification is a more important aspect.

"I know you are angry in your heart. This should be my responsibility. You think it has nothing to do with you, but you have also been criticized by internal reports and fined you for half a year's bonus. If I had been in the past, I would have thought so. Only when something really happened in the future will you realize the problem. Whether you admit it or not, it is like this. Weapons are different from other mechanical designs. This is used for killing, not for production." Liu Yijiu knew that although these people had no objections on the surface, they would definitely not understand it in their hearts.

Jia Ling never expected that she would be taught such a vivid lesson just after she went to work.

She even felt that Liu Yijiu was a bit pretentious. The base director and the third district director had no objection to this minor accident. He had to ask for punishment himself, and even let the base director in charge of technology and Yang Shan and others be punished.

No matter how she thought of Liu Yijiu, at least, this incident left a profound lesson in her heart.

Liu Yijiu also knew that nothing is useful to say now.

They will only realize these problems after they have experienced more.

In the next few days, Liu Yijiu stayed outside. This was not only because there was a problem with the important parts of the 12.7mm sniper rifle, but also because the personnel did not arrive and even the preparations could not be completed. He also knew what technology was in China in this era. He also checked technical information about infrared control in the base, but found that the latest ones were from 1970s.

298 or the National Institute of Optoelectronics will not be able to keep stagnant in this regard.

Only when the people there arrived will we discuss the plan together.

Liang Qiang has been providing technical assistance in the aerospace side, hoping to see their chips earlier. If Cao Zhijiang doesn't come, Liu Yijiu can't do it either. Every day, he keeps eye on the progress of the refilling and processing of the receiver, fearing that any problems will occur again.

"Master Yu, I think there is an electric spark machining machine there, why don't we use it? If we use electric spark for rough processing and then metal cutting and fine processing, will the deformation be much less?" Although Liu Yijiu had no objection to the processing technology re-emitted by Yu Jianguo and others, the efficiency was too slow. Moreover, when using rod milling cutters to mill little by little, the cutting stress generated by the processing process caused the receiver to deform very much.

"You talk about those CNC machine tools that you just arrived last year? No one here can use that thing well! Besides, they have always been artificial, and ordinary milling machines have higher milling efficiency and more reliable quality..." Yu Jianguo's words stunned Liu Yijiu.

No wonder these equipment are placed in the workshop and then covered with plastic cloth!

If he hadn't been in the workshop every day, he wouldn't have known that there would be these equipment here.

Even in their era, these equipment were not completely eliminated, which shows how powerful processing capabilities it has.

These craftsmen and managers did not take these things seriously!

"Change the process and use electric processing to process the gun cartridge, so that the deformation will be much smaller." Liu Yijiu immediately stopped the gun cartridge during the processing.

After hearing Liu Yijiu's words, Yu Jianguo was a little embarrassed.

"These electrical processing equipment and CNC equipment are not optoelectronic tracking and processing used by other units in our country, but require programming with Morse code. The people we sent to Switzerland to study have not come back yet..."

"This is not complicated, I will do this." Liu Yijiu curled his lips.

Paper tape perforation programming is much easier than other CNC machine tools to control. Liu Yijiu has some research on these equipment that stayed on the base in the early days. In their era, these things were toys that gave them time.

"Will you use this?" Xie Heping was a little surprised when he heard Liu Yijiu say that he would use those CNC machine tools covered with plastic cloth.

"When I first came to the base, Su Mingyi used this to make things difficult for me. But in the end things changed..." Liu Yijiu nodded.

"Then you try it." Xie Heping was also very troubled by this matter. The operators of these equipment need to wait until the people sent out to study to train the first batch of domestic operators before they can be transferred to their side. I don't know how long it will take to wait.

These equipment are not cheap, and if it can be processed, it is still a good thing. After all, many of the programs of this thing can be processed...

Liu Yijiu did not start the computer as soon as he came up, but first conducted some research based on the German manual provided by the other party. The manual not only contained operating and maintenance methods, but also various types of transformation methods and how to program various codes read by the paper tape perforator.

For those who are not familiar with binary code, it is a headache to do this.

While studying the manual, Liu Yijiu asked someone to process the copper electrodes used as molds according to his design drawings.

"For this thing, the most depressing thing is that the long paper tape is required to prepare the program. Swiss machine tools use standard ISO codes, a total of eight digits, and the eighth digit is the verification code, which is mainly used for spouses... The letters, numbers or symbols given in the program sheet are all penetrated into holes according to regulations (i.e., information holes), and a synchronization hole is performed in the middle, which is mainly used to synchronize the machine tool with the control system..." After Liu Yijiu completed the programming, he told several younger and better technical workers selected in the machining workshop.

After installing the paper tape for the prepared program on the reading device, people will turn on the power switch and start the individual, relatively large CNC device.

"Before the program is running, a trial run is first necessary to verify whether the program we compiled is wrong. The best thing is to use easy-to-process materials for trial processing. However, in order to ensure that there is no error in our discharge gap and avoid scrapping, we use the same material here, leaving a larger appearance size. You are all experts in the correcting of the segments. I won't say much about this..." Liu Yijiu clamped a manganese steel block with an appearance size of one millimeter larger than an ordinary gun cartridge on the vise on the machine tool workbench, and began to use the photoelectric induction principle to read the code information on the paper tape.

When the paper tape on the CNC device quickly rolled up, the spark machine that was originally motionless also began to move.

Spark machines, unlike other CNC machines, are relatively simple during processing, just need to keep moving the Z-axis of the electrodes. This movement is not fast, but very slow.

When the spark machine performs electric spark processing, the tool electrode and the workpiece are connected to the two poles of the pulse power supply respectively to charge the working liquid into the discharge gap. The tool electrode is controlled to feed the workpiece through the gap automatic control system. When the gap between the two electrodes reaches a certain distance, the pulse voltage applied on the two electrodes breaks through the working liquid, generating spark discharge. A large amount of heat energy is instantly concentrated in the discharge micro channel. The temperature can be as high as 10,000℃ and the pressure also changes sharply, so that the local trace metal material on the working surface immediately melts, gasifies, and explodes into the working liquid, condensing rapidly, forming solid metal particles, and being taken away by the working liquid.

By repeating this process continuously, you will be able to obtain the desired cavity.

"Xiao Liu, I didn't expect you to be a versatile person. I had known that I would have asked you to train our technicians in front of me. With these things, processing will be much more convenient in the future..." When I saw the five neatly arranged receivers in front of me, almost everyone was surprised and couldn't speak.

They did not expect that these idle equipment had such powerful processing capabilities.

"Director Xie, I have taught them the basic parts, and I have also translated the manual into Chinese. The rest is to let them practice more internships. In this regard, don't be afraid of waste. As for technology, you need to do more to accumulate..." Liu Yijiu didn't want to trouble. The things at hand now made him really not have much energy to train these technical workers to learn equipment operation techniques that are about to fall behind.

After the Intel 8085 chip is launched next year, paper-belt punched CNC machine tools will soon be completely replaced by modern computers controlled by computers.

Those things are embargo items for the Republic, but after the Republic’s reform and opening up next year, these equipment will gradually come in...

If it weren't for the products they designed that require these simple and relatively poor processing capabilities of CNC machine tools, Liu Yijiu would never do it himself.
Chapter completed!