Chapter 398: Exhaustion

Chapter 398: Exhaustion

After the students who Kobayashi led started up the five-axis machining center, he observed it with a steady victory. Then "Buzz~" the rotation of the drill bit driven by the main shaft rubbed like a giant beast roaring low. The cutting fluid for cooling shouldn't be adjusted to the maximum without mercy and the students in the broadcast room were breathless again.

Time passed a little bit, after a minute. Kobayashi could no longer stay idle, so he hurried to the five-axis machining center and stretched his head to look in through the observation window. Because after a full minute, the spindle hadn't moved.

For the five-axis machining center, the best thing in it is the main shaft, it can be moved at any angle. This is easier to maintain its accuracy more than traditional machine tools to move processed materials. But after one minute, the spindle didn't move and only one thing happened. The bit on the spindle hasn't cut the material.

"Speed up to two thousand," Kobayashi said quietly.

"Hum~"

After increasing the speed of rotation, the friction of the drill bit on the iron rule made a big noise in the high-speed machining center, which pushed the students in the live broadcast room to be unable to keep from getting up and couldn't help but sweat.

The green smoke curled up slowly from the observation window of the five-axis machining center. Before he could get back to its senses, Kobayashi beat chicken blood the smoke quickly turned into black smoke.

"The knife is burned~ The knife is burned~" The student of Shanghai University next to him anxiously reminded: "Shut down, don't damage our equipment."

Students of Japan Science and Technology Co., Ltd. stopped the machining center and the automatic hatch was opened. The cutting fluid used to cool the metal was heated by the high temperature producing suffocating smoke and people who were choking coughed. Fortunately, the circulating cutting fluid quickly cooled the drill bit. The Japanese students took off the drill bit, and their cheeks suddenly turned into a burning cloud.

The top of the drill bit burned and rainbow-colored streaks appeared due to the high temperature. This kind of thing that usually happened in the shop level processing factories actually happened to them.

Friction will cause high temperatures. Under normal circumstances, there will be heat dissipation from the cutting fluid and the cut wire, and the drill will not burn. However, if the spindle feeds the tool and the material is not moving, the friction will continue to rise. As the speed increases, even the cutting fluid will not take away all the heat, and then the drill will burn.

The iron ruler was also removed from the fixture, and everyone saw there was no trace on the back of the iron ruler, but it was not intact. If they looked closely with a magnifying glass, they could still see the place where the drill processed before.

The Japanese students would have difficult feelings because if they wanted to engrave words even if they would have to burn a thousand more drilling heads they couldn't do.

"This... this is impossible!" Tanaka classmates in charge of manipulating the five-axis center shouted with protective gloves holding the iron ruler: "Why can't we even a pit be drilled out?"

Kobayashi was still in front of the camera and said into himself when I liked showing them the level of metal materials in our country. Now the drill heads were burned by their metal. Looking at the intact iron ruler, the audience in the live broadcast room quickly sprayed a sip of water on the screen.

"Even if they can't measure with accuracy and they can't even make a ligature. Please allow me to sympathize with them for 0.1 seconds. To be honest, they launched us into materials science, but the person who saved us is Mr. Ye Qing from the Monster Heavy Industry."

"I decided to go to work at Monster Heavy Industry after graduation, which is too honorable."

"The one who is going to work at the Monster Heavy Industry, wake up quickly."

Kobayashi had decided to engrave the word without a doubt. So, half an hour later, after intense preparations from the Japan Institute of Technology the iron ruler was moved to the plasma arc cutting machine.

Although arc cutting is suitable for high hardness alloys, its cutting has no precision at all. Even if the few words can be cut out at the end, not to mention the amazing effect of not seeing the handwriting at the horizontal angle, the slightly more elegant level of visualization cannot be satisfactory.

The dazzling blue arc raged on the back of the iron ruler. The huge noise of the arc breaking through the air lashed the eardrums of nearby students. It is a pity that the scene that occurred with the five-axis machining center happened again on the plasma arc cutting machine. The arc has swept through countless tracks, but the two-axis moving tables below couldn't move and the iron ruler was removed again, and there was only an insignificant color change on the surface.

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Kobayashi’s eyes were straight when he saw the iron ruler. Materials that were usually difficult to machine with a machine tool, like stainless steel, will become more docile than cream with the arc cutting. But when it met the iron ruler, it couldn't even shake a layer of leather.

"Ouch~ It's hot."

Kobayashi suddenly shook his hand exaggeratedly and deliberately left the iron ruler to fall down. The iron ruler jingled bounced far away and then in the bullet screen, it was all about this shameless news.

Too strong is easy to break, even the ancients understood. Metal objects with higher hardness tend to be more brittle. As a simple example, glass windows in ordinary homes are harder than 90% of metal but can break with one fist. Take the extremely hard tungsten steel in the metal, for example, the long strip of tungsten steel falls to the ground and 10,000 percent will break apart. The tungsten steel drill bits used in the machine tool do not need to be stored in a special toolbox on weekdays to prevent bumps.

Since this iron rule is so hard, I'm sure it is very fragile but the iron rule tinkles and bounces several times. Then in the bulletproof screen, it was a question of fighting this shameless news. This iron rule after having bounced a few times had landed not far from Ye Qing. So, he picked up the intact iron ruler and handing it back to Kobayashi again, raising his eyebrows: "Professor Kobayashi, why don't you touch this iron ruler, it's not hot at all?"

"Is there...Is there a high-power laser cutting machine?" Kobayashi was ashamed and shocked, and there was an embarrassment that he couldn't hide.

Professor Cai Chenning presented a Siemens 4500w laser cutting machine that was adjusted, and after its protective cover was lowered, it slowly opened after five minutes.

This time, in addition to the iron ruler that had burned and had a layer of carbon on the surface, there were also faces of ugly pork liver on students at the Japanese University of Technology.

After the charcoal layer was washed with liquid, the surface of the iron ruler returned the same as when it was first set.

"What words should be engraved?" Now Kobayashi feels he can leave a shallow trace on the iron ruler, which is already a great satisfaction.

"Can... can't... lend us the laboratory for more time, for one night?" Kobayashi, who had no room for self-confidence, asked Professor Cai by whispering next to his face.

"Is there any need to continue?" Professor Cai Chenning spread his hand: "Of course, if you still want to continue, I have no objection."

"I should try everything I can, and everyone knows it."

Professor Cai Chenning gave a sulking breath and let the teacher in charge of the laboratory accompany him here. Ye Qing also waved at Kobayashi, preparing to leave.

"What should I say? Please don't let the live broadcast brother, and I want to see if I can leave traces on the iron ruler... Brother of the mechanical engineering department can you give me a general introduction, what material is this iron rule made of?"

"The graduate student of the Department of mechanics in the field tells you that the iron ruler is made of Edelman alloy, which is contained in the shield of Captain America... I'm going to give you a gift. I won't let the classmate broadcast live."

After leaving the gate of the mechanical laboratory, Ye Qing became relaxed and happy.

Professor Cai Chenning, who came out at the same time, held Ye Qing's hands tightly and excitedly said: "Mr. Ye, I really don't know how to thank you. Without you, our school would have really become a means of the joke at this time. Haha... There is that iron ruler too. They are going to engrave the master of the world and will hold close in front of me. I pinched my thigh to make me hold my smile."

"Teacher... Don't be shy, just put your stronger hands up." Ye Qing's mouth showed a pleasant smile. This thing is really cool. There are also those young students who look at them with their eyes and worship them all.

"That iron ruler, Mr. Ye, how did you do it? It seems to have reached an uncontrollable level of destruction."

Ye Qing was about to talk about the general steps of making the iron ruler, and the ring of telephone bell interrupted the following words. The call was from the sales manager Kong Tao. As soon as the call was connected, he quickly said: "Boss... Watch the news. It is the news pushed in WeChat."

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