Chapter 6: Exoskeleton seat

The two crankshafts, the largest error is only 2 microns, all within the required tolerance range of plus or minus 5 microns, the surface finish is even more meet the company's processing requirements. Even the roundness cylindricity and concentricity that Daxi Yizhen is most concerned about are no more than 1 micron, which is exactly the extreme.
Such a processing process is obviously not artificially possible. Even if labor costs can be done, but according to the manager's time, the day to go back and forth, up to one day to complete, in addition to high-precision CNC machine tools, there will be no other possibility.
Huaxia has a high-precision CNC machine tool? This is a big deal!
The heart has already been turbulent, but Daxi’s face is still quiet, standing up and greeted Wan Wan’s congratulations:
Congratulations! Wan Sang, we can start negotiations on the technology transfer of that engine.

This kind of negotiation is not a day or two. Wan Manager, who was personally accompanied by Daxi Yi, left Suzuki and prepared to set up his own negotiating team and start negotiations.
After sending away the manager of Daxi Yizhen, he immediately convened a meeting to study the processing technology of the two crankshafts and the words of the manager he recorded. Of course, the focus is on the current status of Huaxia high-precision CNC machine tools. .
"There is no 100,000 pieces, don't tell the little devils in one sentence." After returning to the hotel, Manager Wan directly licked his secretary.
The capable female secretary nodded, but her eyes were white. A total of 50,000 yuan was paid for the processing fee, and a message was sold for 100,000. It turned out to be a profiteer.
However, the next sentence of Manager Wan made the little secretary smile.
"How much you can get, it is your travel allowance, the company will not subsidize it." Manager Wan said very casually: "Happy to play."
How much is the company's travel subsidy, 100,000 can exceed several times several times. The little secretary has decided to go to Tokyo from Shizuoka Prefecture to buy the bag and cosmetics that I have long seen.
Guo Tailai still doesn't know that he has a huge income, and he knows how to live a life of unparalleled school life, and enjoys a wonderful life with his roommates.
Even the closest relatives did not see that Guo Tailai’s glasses were different from before the holiday. Now he just wears the same frame, but there is a pair of flat glasses, there is no degree at all.
Liu Yang and Guo Tailai are buddies. He is quite admired for the fat man who can lose more than 20 kilograms in a month's holiday.
However, Liu Yang is a sports special enrollment student, the school team professional volleyball second pass, exercise fitness is barely regarded as a half expert. I haven’t taken care of it for the past few days, and I’m taking Guotai’s back early. This is the opportunity to look for opportunities and Guo Tai’s suggestion to lose weight and not lose weight too quickly to avoid damage to the body.
The fat man is of course good at the flow. It is not a good choice to lose weight quickly under normal circumstances, so he has already made a plan and will probably lose weight at a rate of four or five pounds per month.
Even if there are nano-robots, Guo Tailai also firmly believes that the body is his own, and can not arbitrarily overdraw energy. Haha, I quickly spent the night.
Early the next morning, Guo Tailai got up early in the morning and went straight to the school's factory fitter workshop after eating breakfast.
The graduation design sample has already been done halfway. Yesterday, the activity arranged by Liu Lao was delayed. Today, I will continue to complete the follow-up part.
Having said that, the tools in Liu’s workshop are really good. Think about Guo Tailai’s itching, and use these tools to build it today. The only fly in the ointment is that the material is just ordinary steel, not a better titanium alloy.
Came to the workshop, Guo Tailai went straight to Liu Lao's work room. Although Liu Lao’s work room is locked, and the key is in Liu’s hands. However, this is a common padlock key for a fat man who can achieve 1 micron accuracy and is proficient in bench work.
Obviously not. The fat man can easily find a piece of iron to find a identical key, and it takes ten minutes to pass. Seeing his big key with the key to open the room, no one else cares about him. Anyway, Liu Lao has already agreed to use this workshop, and many people know it.
I first praised every tool, and Guo Tailai started his own work. The hydraulic cylinders and hydraulic pistons that came out of the old lathe in 1933 can be used completely. There is no need to adjust too much. Now just do the rest.
Not long after the beginning, Liu Lao once again held two fitness and came in.
For Guo Tailai, there is no key to come in. Liu Lao is not surprised at all. A genius that does not require the use of measuring tools to process 5 micron accuracy, it is a joke to have him open the door with a key and want to block with such a simple lock.
Guo Tailai said hello to the rules. Guo Tailai only knew the identity of Liu Lao this morning, and he also knew the status of his old man in the factory. Moreover, the age of the family, dedicated to the country for a lifetime, enough Guo Tailai to admire.
"Fat, what do you think of the crankshaft yesterday?" Liu Lao sat in the only chair in the workplace, only to smile at Guo Tailai.
"Ordinary four-cylinder engine crankshaft." Guo Tailai stood in front of the workbench and replied casually with a saw. "But the designer is a junk. If I were his boss, I would definitely fire him directly."
"How do you say?" Liu Lai came to the mood, and his face smiled more and asked Guo Tailai.
"Engine crankshaft, you require coaxiality not more than 5 microns, normal. Roundness and cylindricity requirements are also normal." Guo Tailai kept his hands on his eyes, staring at the workpiece, and replied in his mouth: "But your other common size requirements are also 5 microns, isn't that looking for something to play?"
"The normal steel expansion coefficient is ten times ten plus six times per degree Celsius. One meter long workpiece has a length of one degree Celsius and a dozen micrometers." Guo Tailai did not lift his head and continued to explain: "Your precision The requirements are so high, but the temperature requirements are not marked. Isn't that a half-lift? Besides, the working temperature of the crankshaft is at least tens higher than normal temperature, and the dimensional expansion has exceeded tens or even hundreds of micrometers, let alone Disturbance deformation caused by complex conditions requires 5 microns to have a fart meaning?"
"So, if it is not the designer is a garbage, it is intentionally to increase the processing cost and processing difficulty, and increase the extra expenses out of thin air." Guo Tai said here, just saw the workpiece in the hand, and then looked up at Liu Laodao: Father, you said, should such a designer be fired?"
"If I estimate that I am also expelled." Liu Laoxiao was very happy, looking at the fat body's unformed artifacts, and interested in the part of his hand: "What is this?"

My graduation design.
Guo Tailai quickly replied:
Exoskeleton seat.