Chapter 398: Exhaustion (1/2)
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 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.
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.