The barrel cold forging machine is different from the ordinary cold forging machine, he placed several convex small hammers on the connecting rod of the fixed barrel, so that the barrel can better complete the shaping of the barrel under the combination of internal and external forging force, coupled with the high-precision mold made by Lu Jiadong, so that the whole machine can quickly produce a conical barrel.

Li Deshun took the finished barrel in his hand and looked at it several times, and then said in surprise: "The inner wall of this barrel is smooth, the outer wall is neat, and the thickness is uniform, which is much stronger than that made by our old machine!"

"That's not all!" Liu Wei pointed to the barrel in Master Li's hand and added: "You see that the part of the barrel close to the receiver bears a large explosive force of gunpowder, so it is thicker, and the muzzle bearing force is smaller, so it is thinner, which not only ensures the quality of the barrel, but also reduces the weight!"

"But it's not, it's indeed much lighter than the old barrel!" Master Li weighed the barrel with his hand, and then looked at his apprentice with a smile:

"You can see all this, yes, the master didn't teach you in vain!"

"Hehe, this is all Lu Jiadong said, not taught by the master!" Liu Wei smiled awkwardly, scratching his head and whispering in defense.

Hearing Liu Wei's words, Li Deshun was not angry, but laughed: "I don't know your bit of ink yet, I already know that this is Xiao Lu's idea!"

"Xiao Lu, you are really amazing, you can figure out such a complex machine in a few clicks, and you can make such a good barrel, my Lao Li really admires you from the bottom of my heart!"

"Master Li has won the award!" Lu Jiadong still had that faint smile on his face: "This barrel is just an experiment, it's nothing!"

"Is this just an experimental product?" Li Deshun couldn't believe his ears, in his opinion, this barrel was already a qualified product, and it could definitely be mass-produced.

At this time, Liu Wei snatched the conversation: "Jiadong said that by adding a rifling groove to the mold, you can complete the forging and drawing of the barrel at one time, which can not only save labor and time, but also greatly reduce costs!"

"That's good!" After listening to Liu Wei's words, Li Deshun was also quite excited: "The barrel and rifling are formed at one time, then our burden will be greatly reduced, Xiao Lu, you are really amazing!"

Lu Jiadong and Li Deshun were talking and laughing there, and no one paid attention to Zhang Jianjun and his maintenance team who stayed next to them, as if they were just a ball of air, and they couldn't get into the eyes of these people in the workshop at all, and Zhang Jianjun's face was even more blue at this time.

He said that Lu Jiadong did not know how to operate the scrapped machine, but the formula molds of other people were all fine, and a high-quality barrel could be processed after a few movements, which made Zhang Jianjun very uncomfortable.

It's not a taste, it's easy to say, the most intolerable thing for Zhang Jianjun is Lu Jiadong's attitude, from entering the door to now, he only said to himself "a little understanding", and the rest is to ignore himself, as if he didn't exist at all, but this kind of ignorance is like being slapped twice, and after knocking out his teeth, he has to swallow it hard, which makes Zhang Jianjun feel extremely uncomfortable. If Lu Jiadong had a fight with him with his eyes open, maybe he would have felt better.

So Zhang Jianjun's face was red for a while, and green for a while, it looked colorful and very good-looking, and the maintenance team standing next to him knew Zhang Jianjun's thoughts, so he leaned over and asked:

"Director Zhang, this machine can't be dismantled yet!"

"What machine to dismantle?"

Hearing this question, Zhang Jianjun turned his head sharply: "Factory director, secretary, what are you?"

"Are you asking why we're here?" Zheng Yongbo and Gao Xinghua also came to the workshop at some point, at this time Zheng Yongbo looked at Zhang Jianjun in front of him, his face was gloomy: "If I don't come again, you Zhang Jianjun will have to demolish this Wanshan factory!"

Zheng Yongbo was obviously very angry, and his voice was surprisingly loud, even the nearby machinery was buzzed by his voice, Zhang Jianjun saw Zheng Yongbo so angry, and couldn't help but look at Lu Jiadong viciously:

"You don't have to look at Xiao Lu!" Seeing Zhang Jianjun like this, Xinghua also broke his silence and said with a calm face: "You dismantle machinery for such a big thing, almost everyone in the factory knows about it!"

"Factory director, secretary, me"

Zhang Jianjun wanted to explain, but was stopped by Zheng Yongbo waving his hand: "You are obviously not suitable for the current position, the factory has decided to remove you from your post and cancel the treatment of cadres!"

Zhang Jianjun was irrefutable, he could only leave with the people of the maintenance team, when he walked to the door of the workshop, I don't know who remembered what he said just now who knows German, he Zhang Jianjun's name was written upside down, and now Lu Jiadong easily recognized German, so the workers in the workshop shouted to his back:

"Write backwards, write backwards!" This made Zhang Jianjun even more resentful, and he quickly disappeared without a trace.

After Zhang Jianjun left, Zheng Yongbo came to the workshop workers: "Xiao Lu, Master Li and everyone are all wronged today!"

"Director, we're fine, it's just that Section Chief Zhang is really a person" Li Deshun didn't finish his words, but everyone knew the meaning.

"Rest assured, people like Zhang Jianjun who have problems with their thinking will not be reused in the factory in the future!" Gao Xinghua also stood up and said: "Thanks to Xiao Lu this time, if he can't start, this machine worth hundreds of thousands of dollars is estimated to be destroyed by Zhang Jianjun!"

"It's nothing for me to do this!" Lu Jiadong touched his nose: "It's still Master Li, they blocked it in time, and I blame it when I say it, if I take some time to come to the workshop to teach everyone machinery and equipment, it won't happen today!"

"Xiao Lu, where are you talking about, you are busy developing a new gun, everyone is looking at it, how can I blame you!" Li Deshun hurriedly stood up and corrected Lu Jiadong's "wrong remarks."

Zheng Yongbo and Gao Xinghua also pointed at Lu Jiadong frequently with their hands: "You little Lu, you are a little too modest!" Lu Jiadong was speechless, he could only smile and touch his nose, humbly accepting everyone's criticism.

Time passed quickly, and before I knew it, another month passed, and Lu Jiadong and the new gun development team led by him successively solved a series of new gun technologies, such as the integrated molding technology of cold forging machine gun barrel rifling, the determination of the value of the short-stroke air guide tube, the fusion technology of 56 punches and 56 and a half guns, the positioning of fast and slow machines and the stabilization of the connecting rod at the rear of the gun, and the technology of hanging up in the empty compartment.

The members of the new gun development team also worked very hard for this, especially the veteran draftsman Yang Limin, who was not only responsible for the huge operation of finite element analysis in the design of firearms, but also presided over and participated in the drawing of the design drawings of firearms.

However, Yang Limin never complained, and every time he conscientiously completed the tasks assigned to him, and the other members of the group were the same, they felt that it was an incomparably great honor to be able to participate in the development of the new gun, and it didn't matter if they were tired or tired, as long as the new gun was successfully developed, it was the greatest reward for them.

The members of the new gun team are all tired and tired, so that the core leader Lu Jiadong is very relaxed, he is only responsible for proposing concepts and solutions, or going to the workshop for training and training, and other things are completed by other members of the group, so that Lu Jiadong, who has nothing to do, picked up his old job as a tutor and made up lessons for Chen Ziyue, which also led to the rapid warming of the relationship between the two to the stage of literary and artistic youth discussing life ideals.

However, this also indirectly caused Chen Zhen to treat Lu Jiadong as a quasi-son-in-law, and put on a posture of an old man wherever he was, which made Lu Jiadong quite helpless.

In this way, the spring breeze blows, the summer breeze hits, into May, the new gun developed by Wanshan factory enters the production and assembly stage, when the scattered parts are spliced together one by one in the hands of equipment workers, the new gun also gradually enters the reality from the drawings, the new assault rifle developed by Wanshan factory is an assault rifle that fires 7.62 mm bullets of the army standard, with a total length of 884mm, 10mm longer than the 56 punch, and a combat weight of 3.8 kg, 2 kg less than the 56 punch.

The firearm adopts a short-stroke gas conduction structure, the piston stroke is only 23mm, which is much shorter than the piston stroke of 56 punches and 240mm, and the bolt adopts a bolt that combines 56 punches and 56 and a half, which is a bit like the 81-1 bolt of later generations, but Lu Jiadong has improved it, mainly to reduce the bolt appropriately, so that the receiver cover extends from the tail to the barrel, mainly to facilitate the installation of the Wanshan firearm tactical guide rail system, so it is not the same as the 81-1.

Although the shape of the gun retains some AK series elements, the shadow of AK can no longer be seen on the whole, and it seems to be strong and tough without losing the beauty of generosity, with empty aiming, rotating rulers, fast and slow machines and insurance at your fingertips, which makes the man-machine effect of the new gun reach a very perfect degree.

"Da Da ~ Da Da ~ " On the shooting range of the Wanshan Militia Company, Wu Tianming held this beautiful new gun for a shooting test:

"How do you feel?" Before the shooting was finished, Zheng Yongbo, the factory director standing on the side, couldn't wait to ask.

"The shooting accuracy is good, the initial velocity of the bullet is fast, the power is great, the shell throwing is stable, and it is much stronger than the 56 punch equipped by the troops!" After Wu Tianming finished answering, he raised the gun again and pulled the trigger towards the target in the distance.

At this moment, Zhao Wei took a document and hurriedly ran here, shouting as he ran:

"Factory director, the provincial department is in an emergency!"

Listening to Zhao Wei's shout, Lu Jiadong's eyelids who were standing on the side couldn't help jumping, the development of the new gun of the Wanshan Factory lasted nearly three months, and it was impossible to hide it from the Provincial Department of Science, Technology and Industry for National Defense, so before this time, the factory telegraphed its own idea of developing a new gun, and the attitude of the provincial department was the same as Lu Jiadong's speculation, and it was very encouraging and supportive of the behavior of the Wanshan Factory in self-raising funds to develop a new gun.

At this time, Zhao Wei had already sent the message to Zheng Yongbo, Zheng Yongbo hurriedly glanced at it, then frowned, and then he handed the message to Lu Jiadong, Lu Jiadong took the message, and the text on it was very simple:

"Your factory is limited to send the new gun to the Red Star Machinery Factory before May 10 to participate in the finalized test of the Type 78 assault rifle!"

ps: Thank you for the reward of Tianhai Xiangyun and Xuanyuan Wu, thank you for your support, your love is the infinite motivation of Yuzu! Thank you Yan Ling Sheath and other book friends for their comments, Yuzu will write this book with a craftsman spirit.

Finally, Yuzu still has to ask all brothers and sisters, collect more and recommend more, Yuzu thank you brothers and sisters for your support, thank you!

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