socalfunplaces Chapter 250 General Lin's Request for Help, Weapons Expert
Chapter 250 General Lin's Request for Help, Weapons Expert
Li Yang had just finished making the prototype of the CNC lathe when he received a call from General Lin.
"Xiao Li, our military industry system has recently encountered a difficult problem and needs your help." General Lin said straight to the point.
"Uncle Lin, just give me your instructions and I will do my best to help!" Li Yang immediately became energetic after hearing that.
"That's right. When we produce guns and cannons, we have very high requirements for gun barrels and cannon barrels. They must meet strict accuracy and performance standards. However, the existing equipment and processes can no longer meet the needs of new weapons."
General Lin said earnestly, "So, we would like to ask you for help to see if you can develop a production line specifically for manufacturing gun barrels and cannon barrels to improve both quality and efficiency."
When Li Yang heard this, his heart suddenly brightened.
He immediately understood General Lin's intention.
Yes, although steel rolling mills also produce steel pipes, they are ordinary civilian steel pipes with larger diameters, uneven wall thickness, and are relatively rough inside and out.
But the gun barrels and cannon barrels required by the military industry are not that simple.
首先,口径一般都很小,像步枪才6.5毫米到7.62毫米,重机枪一般12.7毫米,反坦克炮也不过75毫米到100毫米。
Such small-diameter steel pipes require very high precision in production equipment.
Secondly, the gun barrel must undergo special heat treatment and mechanical processing, and its hardness and strength must be far greater than that of ordinary steel pipes.
The inner wall must be polished to be as smooth as a mirror, with an error of no more than 0.01 mm.
The most important thing is that the inner bore of the barrel must be rifled, that is, spiral grooves.
That is the core component related to shooting accuracy!
The rifling can force the bullet to rotate at high speed, like a football player's "banana kick", producing a spinning effect, greatly improving the range and hit rate.
The difficulty of rifling is very great. The groove width is generally only about 2.5 mm, and it is also necessary to ensure longitudinal parallelism, uniform pitch, left-right symmetry, and consistent angles. For the current processing level, it is almost an impossible task.
Thinking of this, Li Yang understood the dilemma of the military industry system.
Without sophisticated pipe-making equipment, even the most advanced gun design drawings will be shelved and difficult to put into production.
"Uncle Lin, don't worry, I'll take this task!" Li Yang said firmly, "However, I need you to provide some information on gun manufacturing so that I can study the principles thoroughly and prescribe the right medicine."
"No problem!" General Lin agreed immediately, "I'll have someone deliver it right away. I guarantee you'll have a full view of it and be able to do whatever you want with it!"
That afternoon, General Lin sent someone to deliver several large boxes of books and atlases, all of which contained confidential information on firearms manufacturing.
From illustrations of famous guns from various countries to professional "Gun Manufacturing Technology", it has everything.
Li Yang was overjoyed and began to study hard all night.
With the help of the golden finger, a lot of knowledge poured into my mind like a spring:
[Ding, the host triggers the learning skill: Firearms Engineering! Activate the weapon manufacturing expert skill!]
[Gun barrel manufacturing accuracy +10%, gun barrel manufacturing accuracy +10%, rifling processing accuracy +10%!]
[The system detects that the host is learning gun manufacturing, and the knowledge reserve progress is 10%...30%...50%...100%!]
[Ding, congratulations to the host for obtaining the skill: Gun Barrel Turning, proficiency +10!]
[Ding, congratulations to the host for obtaining the skill: Gun Barrel Drilling, proficiency +10!]
[Ding, congratulations to the host for obtaining the skill: Barrel Forging, proficiency +10!]
[Ding, congratulations to the host for obtaining the skill: Rifling Processing, proficiency +10!]
……
A series of prompt sounds rang in his mind, and Li Yang felt relaxed all over, as if he had mastered the essence of a lot of firearms manufacturing.
From the earliest flintlock rifles to modern automatic rifles, from light weapons to heavy artillery, the development of weapons manufacturing technology was clearly presented to him.
[60s: Semi-automatic rifles such as M14 and FAL are popular, using pneumatic and rolling bolts, all-steel bolts, complex processing technology, and high manufacturing capabilities. ]
[70s: Assault rifles such as M16 and AK47 began to replace semi-automatic rifles, using pneumatic bolts with aluminum alloy gun bodies, which greatly reduced weight and simplified the manufacturing process. However, the barrel material is mostly special steel, which has high thermal strength and good wear resistance. ]
[80s: Sniper rifles such as PSG-1 and SVD entered the practical stage, and the barrel precision was extremely high. Forging technology and surface nitriding treatment were generally used to ensure strength and wear resistance. Rifling was mostly multi-line type, with a higher rotation rate and more stable trajectory. ]
[90s: Heavy machine guns such as M2 and NSV were widely used, and quick-change barrels were often used, which greatly improved the heat dissipation performance. Barrels were mostly made of composite steel, with different inner and outer layers to complement each other's shortcomings. Rifling began to be machined by EDM, and the thread profile became more complex and the accuracy was higher. ]
……
In just a few decades, the level of firearms manufacturing has advanced by leaps and bounds, new materials and new technologies have emerged in an endless stream, and the hard-core technologies contained therein dazzled Li Yang.
He secretly sighed that the reason why Western powers could dominate the world was closely related to their powerful military technology.
Although we have brave and tenacious people, the gap in weapons and equipment cannot be easily made up.
Now, with the help of the golden finger, he has mastered the core manufacturing technology of the West. This is a great opportunity!
"With all these, are we still worried about not being able to make a first-class gun barrel?" Li Yang was full of pride and confidence.
The next morning, he took his design drawings to the United Technology Center.
The drawings were densely marked with various data and processes:
The coaxiality of the gun barrel blank processed by deep hole drilling machine shall not exceed 0.02mm;
The outer surface is finely processed by CNC lathe, and the roundness does not exceed 0.01mm;
The centerless grinder trims both ends of the barrel, and the verticality does not exceed 0.005mm;
The lead accuracy of the rifling machine tool shall not exceed 0.02mm;
……
The technicians were dumbfounded and couldn't believe the extremely high precision requirements.
"Xiao Li, are you going to use 'alien technology' to make gun barrels?" someone teased.
"Is that so? Are we at this level now?" someone asked doubtfully.
Facing everyone's doubts, Li Yang was confident.
"Comrades, although firearms manufacturing has high requirements, it is not unattainable!" he said firmly, "As long as we benchmark the most advanced machining centers, work hard on mechanical precision and control systems, and equip ourselves with the most cutting-edge CNC technology, we can still surpass the Western equipment level!"
"Besides, have you forgotten that we have just developed a high-precision CNC milling machine and lathe? With them in hand, are we still worried about not being able to process with an error of 0.01mm?"
Li Yang's determined gaze swept across everyone present, igniting the fighting spirit in their hearts.
Yes, they are the pioneers of science and technology, and the main force in overcoming the "bottleneck" problems!
With the leadership of the Party and the government, the expectations of the people, and such a strong accumulation of technology, what reason is there to stop moving forward?
"Deputy Section Chief Li, we are convinced!" Everyone expressed their opinions one after another, "As long as you give the order, we will cut through all the obstacles and resolve the military industry's problems!"
There was thunderous applause and Li Yang nodded silently.
He knew that making a good gun barrel was only the first step.
Next, from heat treatment to surface processing, from inspection to assembly, every link cannot be relaxed.
But with this capable and battle-hardened team, we will surely win this tough battle!
Soon, under the command of Li Yang, the construction of the gun barrel production line was fully launched.
The existing CNC machine tools were debugged one by one and aligned to higher precision standards.
……
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