Chapter 11 Exoskeleton Seat (Part 1)

The maximum error of the two crankshafts is no more than 2 microns, all of which are within the tolerance range he requires plus or minus 5 microns, and the surface finish meets the company's processing requirements. Even the roundness, cylindricity and coaxiality that Kazuma Onishi cares about the most do not exceed 1 micron, which is extremely accurate.

This kind of processing technology is obviously not something that can be done manually. Even if it can be done manually, but according to Manager Wan's time, excluding one day of going back and forth, it can be completed in only one day at most. Except for high-precision CNC machine tools, there is no other possibility.

Huaxia has high-precision CNC machine tools? This is a big deal!

His heart was already turbulent, but Onishi Yizhen remained calm, stood up and congratulated Manager Wan: "Congratulations! Wan Sang, we can start the technology transfer negotiation on that engine."

This kind of negotiation is not a matter of a day or two. Manager Wan, accompanied by Onishi Yizhen himself, left Suzuki, and planned to immediately form his own negotiation team and start the negotiation.

Onishi Kazuma, who sent away Manager Wan, immediately called a meeting to study the processing technology of the two crankshafts and the words of Manager Wan that he recorded. Of course, the focus is on the status quo of China's high-precision CNC machine tools deduced from this. .

"If you don't have 100,000 yuan, don't tell the little devil a word." After returning to the hotel, Manager Wan directly told his secretary.

The capable female secretary nodded, but she stared blankly in her heart. The total processing fee was only 50,000 yuan, and it was about to be sold for 100,000 yuan in one news. It really is a profiteer.

However, Manager Wan's next sentence made the little secretary smile.

"How much you can get is counted as your business trip subsidy this time, and the company will not provide any other subsidy." Manager Wan said casually: "Have fun."

How much is the company's travel subsidy, and one hundred thousand yuan can exceed several times or ten times. The little secretary has already decided that she will go to Tokyo from Shizuoka to buy the bag and cosmetics that she has been promising for a long time.

Guo Tailai didn't know that he already had a huge income, so he lived a very comfortable school life ignorantly, and enjoyed the wonderful life of senior five with his roommates.

Even the closest roommates didn't notice that Guo Tailai's glasses were different from those before the holiday. Now he just wears the same frame, but inside is a pair of flat glasses, no prescription at all.

Liu Yang and Guo Tailai are best friends, and he admires Fatty's ability to lose more than 20 catties during the one-month vacation.

However, Liu Yang is a special student in sports, a professional volleyball setter for the school team, and barely a half-expert in fitness. I hadn't paid much attention to it during the first few days of school, and took advantage of Guo Tailai's early return, so I found an opportunity to talk to Guo Tailai about weight loss, not to lose weight too fast, so as not to damage the body.

Fatty is of course a follower of kindness. Under normal circumstances, rapid weight loss is not a good choice, so he has already made a plan, and he will lose weight at a rate of four to five catties per month.

Even if there are nano-robots, Guo Tailai firmly believes that the body is his own, and he cannot overdraw his energy at will. Hee hee ha ha, quickly spent the night.

Early the next morning, Guo Tailai still got up early in the morning, and went straight to the fitter workshop of the school-run factory after having breakfast.

Half of the graduation design sample has been done, and it was delayed by the job arranged by Mr. Liu yesterday, so I will continue to come over today to complete the follow-up part.

Having said that, the tools in Mr. Liu's workshop are really exquisite. Thinking of Guo Tailai, his hands are itchy, so he used these tools to build today. The only fly in the ointment is that the material is just ordinary steel, not a better titanium alloy.

When he came to the workshop, Guo Tailai went straight to Mr. Liu's workshop. Although Mr. Liu's workshop is locked, and the key is in Mr. Liu's hands. However, for a fat man who can achieve 1-micron accuracy in visual inspection with both eyes and is proficient in fitter work, is that ordinary padlock key a problem?

Obviously not. Fatty could find an iron sheet to file out an identical key casually, and it took him no more than ten minutes. Seeing him ostentatiously assigning the key to open the room, others ignored him, anyway, Mr. Liu had already agreed for him to use this workshop, and many people knew it.

After appreciating every tool, 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 without much adjustment at all, and now we only need to do the rest.

Not long after he started working, Mr. Liu came in holding two fitness balls again.

Mr. Liu was not surprised that Guo Tailai could come in without a key. A genius who does not need to use measuring tools to process 5-micron precision, let him open the door once with a key and want to block it with such a simple lock is simply a joke.

Guo Tailai said hello politely. Only this morning Guo Tailai knew the identity of Mr. Liu and his status in the factory. Besides, at his age, he has devoted his whole life to the country, which is enough for Guo Tailai to respect.

"Fatty, what do you think of the crankshaft yesterday?" Mr. Liu asked Guo Tailai with a smile after he sat down on the only chair in the workshop.

"An ordinary four-cylinder engine crankshaft." Standing in front of the workbench, Guo Tailai replied casually while gesticulating with the saw: "But the designer is a piece of rubbish. If I were his boss, I would definitely fire him directly."

"How do you say it?" Mr. Liu asked Guo Tailai with interest and a smile on his face.

"The crankshaft of the engine, you require that the coaxiality should not exceed 5 microns, which is normal. It is normal to have high requirements for roundness and cylindricity." Guo Tailai kept his hands in his hands, staring at the workpiece, and replied: "But your other ordinary size requirements are also the same. 5 microns, isn’t that just looking for something to play with?”

"The normal coefficient of expansion of steel is ten times ten minus six times per degree Celsius, and the length of a one-meter-long workpiece changes by more than ten microns per degree Celsius." Guo Tailai continued to explain without raising his head: "Your accuracy The requirements are so high, but the temperature requirements are not marked, isn’t that half-baked? What’s more, the working temperature of the crankshaft is at least tens of hundreds of degrees higher than normal temperature, and the dimensional expansion has exceeded tens or even hundreds of microns, let alone Disturbance and deformation caused by complex working conditions, is there any meaning in asking for 5 microns?"

"So, if it's not that the designer is a piece of rubbish, then he is deliberately increasing the processing cost and difficulty, adding extra expenses out of thin air." Guo Tailai just saw the workpiece in his hand when he came here, and then he looked up at Old Liu and said: " Father, do you think such a designer should be fired?"

"If I guess I will be fired too." Liu Lao smiled happily, looking at the fat man's shapeless workpiece, he tapped the part of his hand with great interest: "What is this for?"

"My graduation project." Guo Tailai quickly replied: "Exoskeleton seat."