C2232 It's All Junk
The large CNC milling machine was running, and those countless blades were moving agilely, drawing beautiful arcs on many axis.
The blades were constantly moving. At the same time, the workpiece was also spinning inside. A long copper wire was cut out just like that. The copper wire extended outwards, like a naughty wild cat playing with a ball of wires.
Inside, the shape of the leaves was gradually shown. However, the shape of the leaves was very large. It was a super ship propeller with a diameter of five to six meters!
At the beginning, it was an entire piece of copper. Only the copper alloy could become a qualified propeller.
After all, the propeller was underwater and the seawater had salt. It was corrosive, and it had to adapt to the high-corrosive environment of the seawater for a long period of time. It couldn't be used with pure steel, because it couldn't withstand long-term corrosion. Only one special copper alloy can be used. Pure copper is soft... This was also a material for shell shells. If it was in copper, adding manganese, nickel, and other metals can increase the hardness of the alloy. This way, it can satisfy the needs of the propeller.
Forging an entire copper piece was a difficult task. However, the later stages of the process were even more difficult. The propeller was a complicated curved surface. If it was operated by an ordinary milling machine... First processing one surface, then processing the other. Then you have to change the clamp. When you change the clamp, there will be an error. Although this error was not big, however, for a perfect propeller... It was enough to cause a fatal impact, and it would bring about an increase in underwater noise... Especially for submarines, they had to keep silent.
Fortunately, with this advanced Cnc Machine Tool, the multi-axis connected. After the copper piece was fixed, it stopped moving. The saber rotated on multiple axles and gradually cut out a copper piece, turning it into the shape of a propeller.
It took three days to cut a huge copper piece into a propeller. This was already very fast. In the past, when there was no such processing equipment, it would take more than 30 workers half a month... In order to cut out a small propeller, there was no way to guarantee the precision.
The propeller used by the submarine was slanted with multiple leaves. The shape could be seen now. It was like a Turk scimitar. Now, it was processed with nine leaves. The total weight was more than 100 tons!
"Alright, the processing is complete!" Finally, in the metal debris that covered the ground, the machine stopped moving. The propellers had been processed!
"Wait, something doesn't seem right?" Just as he was about to move the propeller, a worker shouted, "Why is its surface so rough?"
After the propeller was processed, the surface was extremely smooth. These were all for the purpose of reducing the noise, and now it had become rough. Could he polish it? Of course not. A little manual polishing would definitely not be able to maintain the original balance. This would cause the vibration to increase.
The foreman was also puzzled. Could it be that there was a problem with the car knife during the process of processing? That's not right. The car knife had been resharpened. There was absolutely no problem.
"Its shape is also not qualified!"
The processing of the propeller was quite precise. It used professional instruments to test whether the shape was qualified or not. But now, professional workers could see that there was a problem with its shape with the naked eye. The end of the curved blade, this curve was too direct. It wasn't designed at all!
"Our processing is in vain. This is a waste." The foreman's expression immediately became very ugly. This propeller was cut out with a few hundred tons of copper. This time, it was completely scrapped!
How could this be?
"Immediately find an engineer and get an engineer to check it out!"
Very quickly, the engineers from Bear Country came to check it out. They had checked it countless times, both inside and outside, and promised with certainty that it would not be a mistake.
In the end, they picked up the copper piece again and began cutting it. The shape of the copper piece was even more stunning, and the propeller turned into an eight-word shape! The error was even greater!
Everyone's face turned pale. This kind of situation had never happened before. What did this mean? The machine tool's malfunction was too great. It had to be fixed by the manufacturer!
"Contact the Han Country and ask them to fix it!"
For submarines, silent performance was the first priority. Among them, the most noisy one was the propeller. It rotated. The sound of direct contact with seawater, the sound of stirring seawater, spreads very far. That was why Bear Country had used up a lot of energy. After introducing this kind of processing equipment, the noise was immediately reduced.
Now, this kind of machine was actually broken, it couldn't be used anymore!
The same situation was also happening in other places.
The key to processing the Flat Gap Radar antenna was the location and size of the seam. It had to be completely accurate. The people of Bear Country couldn't precisely seam it, so they couldn't process it.
It was just a seam. Was it difficult?
Of course, it was definitely not difficult to make a seam on the wooden board. How about carving a crack on the dough and giving it a try? How about carving a seam on the insect's wings? The most difficult waveguide components were large, precise, and complicated in structure. There were also a large number of thin walls, super-thin abdominal plates, micro-channels, and other weak rigid structures. The biggest problem was that processing was easy to deform, and the precision was hard to guarantee.
You could open the trough, but when it was opened, it would immediately be destroyed. This kind of delicate work was what the people of Bear Country were most not good at.
Now, Han Country had already provided them with a complete production process. Moreover, the Han people also used this set of equipment to produce a completely qualified flat antenna!
A slender saber cut down, cutting through the gap. After cutting through, a shallow mark was left on the surface. It was not cut through at all!1
"Increase the strength!"
The second time, the saber finally pierced through the thin film made by the salt bath. The moment the saber cut through the gap, the entire thin film was lifted up like a layer of window flowers being pulled up.
"Damn it, what's going on?"
On the production line, there were all kinds of experiments, but no matter how they did it, they were unable to produce a qualified product! If they wanted to continue production, they had to ask the Han people to help them adjust!
Every department, every department that needed the equipment from Han Country to operate. Now, they were unable to produce normally. At this time, they finally realized the cause of this scene. It wasn't a coincidence, nor was it their own engineers who didn't pay attention to it... It was because the Han people must have done something to these equipment!
The people of Bear Country were dumbfounded. They originally thought that they did not need the Han people anymore. They could increase the price to scam the Han people. After all, the industrial development of Han Country did not last long. There were still many things that couldn't be produced by themselves, and they needed more money. The Han people had to accept it too. How could they know that the Han people did not show any reaction on the surface? But secretly, it had crippled all of these things!
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