Anti-Japanese War: The understanding is incredible, and the border area was robbed and went crazy

On the way back, Subhetti was much more relaxed when he came

The problem of gasoline was solved, and now there was only the problem of rifling, and after going back, he decided to go to the workshop first to see for himself

Maybe the system will surprise him then!

Su Jie and Yu Shan were not in such a hurry when they rushed back as they came

Su Jie has been running around on the road these days, or in meetings or calculating gains and losses with those group leaders

He wanted to take advantage of this unhurried road to relax, after all, there were a lot of things to do after returning to the arsenal.

It was already evening when he returned to the arsenal, and after dinner, Su Jie immediately came to the workshop of the gunsmith factory

Seeing Su Jie coming, Wang Wei immediately stepped forward to say hello:

"Commissioner, you're back. "

Su Jie nodded slightly in response, he was not in the mood to greet Wang Wei now, and asked directly

"Director Wang, how is the research on new steel, and is the spring available?"

Hearing this, Wang Wei replied excitedly

"Report to the Commissioner, your method has worked

After the meeting the day

before yesterday, I found a small furnace with the masters in the smelting workshop and started testing, and finally adjusted it after a day

The optimal ratio was made, the newly smelted carbon steel had very low impurities, and the coiled springs were loaded into the same as new ones. "

Su Jie nodded and asked again

"Does this batch of carbon steel meet the specifications for making gun barrels?".

Wang Wei replied with some regret

"Commissioner, the barrels of these 60 or 82 mortars made of carbon steel are okay, but they are not as good as the guns of the 92 infantry guns and mountain artillery

Tube requirements. "

Su Jie was not surprised, this was also expected by him, after all, the conditions were limited, and he couldn't be too demanding

Thinking of this, Su Jie spoke:

"Well, you can make mortars,

expand the smelting of carbon steel, and strive to make a few mortars as soon as possible.

How's the second melting furnace?".

"The second smelting furnace was built at noon yesterday, and today we have begun to smelt carbon steel

The plant has begun to produce 82 mortar shells, grenades, 6.50*50mm bullets at full capacity, and there is no need to worry about the smelting workshop

No, it's gone. "

Wang Wei reported, Su Jie frowned slightly when he heard this, and thought that the output will be larger and larger in the future, and these alone are not enough

"Well, there's going to be

another smelting furnace, and I'm afraid the smelting shop won't be able to supply carbon steel if it's producing mortars. "

Hearing this, Wang Wei immediately said:

"Okay commissioner, I'll get the manpower down tomorrow to build another smelting furnace. "

The problem of the spring has been solved, and only one last problem remains, Su Jie asked

"How's the rifling problem studied?"

Wang Wei sighed and said:

"Commissioner, we tried everything, but ......."

Wang Wei didn't continue, and

Su Jie didn't ask any more, picking up a section of the smoothed barrel and frowning and looking at it carefully

As Wang Wei said, the rifling of the gun management has almost been smoothed,

Although Su Jie before the crossing was not good at learning, he was a military enthusiast and had a simple understanding of firearms

He knew that rifling was an important part of a firearm, it carried the pressure of the gas inside the tube, so it needed to be precise and positive

The purpose of the rifling is to enhance the friction between the gas inside the tube and the projectile, thereby increasing the rotational speed of the warhead

The warhead has a more stable flight, and the rifling is processed mainly to achieve this friction, so that the gas can follow the chamber

The wire is wound, the warhead is pushed into the tube, specifically, the rifling is machined by a turning process, and a professional is also required

Rifling engraving knives, and these props are made of extremely strong steel

Alas, this is difficult to do, according to the current situation of the arsenal, this problem is indeed more tricky

It would be nice to be able to make a rifling engraving machine

As soon as this idea was born in Su Jie's mind, the long-awaited anti-heaven comprehension line immediately appeared!

[You have gained an understanding of firearm processing by observing firearm parts. 】

Su Jie was overjoyed, but the system didn't speak

Su Jie wondered in his heart, hmm, what's going on? Not enough?

Thinking about it, Su Jie put down the barrel in his hand and picked up another part

Sure enough, just after Sister Oh Su picked it up and observed it carefully, the system voice remembered again

[You have gained an understanding of firearm processing by observing firearm parts. 】

[You have gained an understanding of firearm processing by observing firearm parts. 】

[You have gained an understanding of firearm processing by observing firearm parts. 】

......

[Congratulations to the host for observing the firearm repair process and understanding the firearm repair and processing technology.] 】

Immediately after, a large amount of knowledge about firearm repair and processing immediately emerged in Su Jie's mind

Su Jie was overjoyed, because among these knowledge was the technique of rifling processing and engraving

One of the simplest methods is called the wire pull method

This release requires drilling and reaming before the wire is drawn, and after loading into the broaching machine, it is scraped tooth by tooth with a broach.

The broaching machine

for processing rifling is different from the ordinary broaching machine, and strictly speaking, it should be called its cutting rifling machine

Since World War II, the classic rifling machine is still the core equipment of wire drawing

Of course, the system gives the wire drawing technology is not limited to this, and the system also gives the design drawings of the broaching machine

After careful research, Su Jie found that as long as the existing simple lathe was transformed, it could be turned into a broaching machine!

Su Jie said excitedly to Wang Wei beside him

"Director Wang, come and give me the blank drawings and pen!".

Wang Wei looked at Su Jie inexplicably, his face full of doubts

What's wrong with the commissioner? Why did he suddenly become so happy with a sad face just now?

Stunned?

Seeing that Wang Wei was still in a daze, Su Jie was angry and said again:

"What are you doing in a daze!

Wang Wei came back to his senses suddenly, and saw that Su Jie was a little angry, so he didn't dare to delay and hurriedly did so

After bringing the pen and paper, Wang Wei asked cautiously

"Correspondent, you're ......

."

Su Jie took care of him badly, and without waiting for him to finish speaking, he took the pen and paper in Wang Wei's hand

Spread it on the table and drew it, Wang Wei leaned over to look at it with a puzzled face

At first, he didn't understand it, but the more he looked at Wang Wei's expression, the more shocked he became!

often dealing with lathes, Wang Wei is naturally also an expert, and he quickly understood what Su Jie was painting

Wang Wei was extremely shocked in his heart, the commissioner was transforming the lathe!

Is the commissioner a god descending from the earth? How did he find a solution so quickly?

Soon Su Jie finished drawing the drawings, he breathed a long sigh of relief, and said to Wang Wei with a smile

"Director Wang, immediately ask the workers to transform the lathe according to my drawings. "

"Yes!".

This time, Wang Wei didn't dare to slack off, and immediately did it, although he didn't know if Su Jie's plan would work

But I'm looking forward to it!