"It's still early, why don't we test it?" Wu Zhensheng asked.

"Okay, try the machine first to see if it can meet the design requirements." Chen Yu nodded.

Wu Zhensheng took out his cell phone and made a phone call.

After a while, Li Dazhu and two people from the maintenance department brought in some things.

After pulling a wire and plugging it in, Chen Yu said, "Carry a few buckets of water."

When processing parts of the machine tool, coolant is needed to cool the tool. Otherwise, the tool will burn out after a few strokes.

Coolant is generally divided into cooling oil and cooling water. When the tool cuts metal, the temperature generated by the cooling oil will deteriorate, which will cause skin allergies in some people. Injection and medication will affect health.

When designing machine tools, Chen Yu considered the issue of coolant. Therefore, when he made CNC lathes, metal parts except tools were made of alloys that were not prone to rust.

After writing the program, installing the processed parts, and adjusting the position of the tool, Chen Yu pressed the start button.

When the motor was running, the round steel fixed by the clamp rotated quickly, the cutter slowly descended, the clean water was poured down, and the thin iron was splashed, and in an instant, the front end of the round steel was cut off.

The cutter is reset, the second knife descends, and in the blink of an eye, the top of the round steel becomes a cone.

The second knife returned to its position, and the third knife fell down. In a blink of an eye, there was an extra groove on the round steel...

After picking up the processed parts, Chen Yu measured them with a micrometer, and then used a projector to measure the angle.

"How is it?" Wu Zhensheng asked curiously.

"The size meets the requirements, with an accuracy of 0.005 mm, that is, 0.5 wire. The accuracy I designed was 0.1 wire. Unfortunately, the performance of electronic components and the speed of the motor did not meet the requirements." Chen Yu smiled.

"Such accuracy?" Wu Zhensheng asked in disbelief.

"If you don't believe it, you can test it yourself." Chen Yu said.

Wu Zhensheng took the parts, inspected them personally, and asked, "Xiao Chen, can you sell me a machine tool?"

"Manager, you also know that the price of such an accurate CNC machine tool is not cheap." Chen Yu smiled.

"What's the matter with 500,000 units per unit?" Wu Zhensheng asked gritted his teeth.

"Okay." Chen Yu nodded. The cost of materials is more than 10,000 yuan, and one unit is sold for 500,000 yuan. He has made a lot of money. Although he can sell one unit for more than 1 million yuan when he gets it outside, he can't really charge the other party one million yuan, right?

He made hundreds of millions of dollars in gambling stones, but he no longer looked down on it.

"Let's try the milling machine again." Wu Zhensheng smiled.

More than ten minutes later, Chen Yu said: "The milling machine has a precision of 0.5 wire, and its performance is pretty good."

"Two hundred thousand yuan per unit, sell me one." Wu Zhensheng said.

"No problem." Chen Yu nodded and responded.

"Try the grinder." Wu Zhensheng said impatiently.

After more than ten minutes, Chen Yu said: "The grinder accuracy is 0.3 wire, which is OK."

"This two-axis grinder is 200,000 yuan a day, I'll sell one to me," said Wu Zhensheng.

"Okay." Chen Yu responded with a smile.

"Director Li, call someone to come and move these three used machines to the new workshop." Wu Zhensheng said.

"Yes." Li Dazhu nodded and responded.

"I will never have to buy imported machine tools in the future. No, with Xiao Chen here, I don't have to buy any machines in the future." Wu Zhensheng said with a smile.

The test machine just now scared everyone. The accuracy of the three machines is much better than the machine tools, milling machines and grinders imported from abroad by Sanyang Machinery Factory.

"Manager, with these machine tools, we can process drill bits." Chen Yu said.

"Yeah!" Wu Zhensheng nodded and said, "Xiao Chen, you have to teach Director Li and the others how to program."

"Programming is very simple. I use Chinese pinyin and numbers to program, such as No. 1 knife resets to zero, dao1gui0..." Chen Yu introduced with a smile.

"Isn't use English?" Li Dazhu asked in surprise.

"What are you doing in English? It's troublesome to learn, and it's troublesome to use it. Forget it, I'll get a piece of information. You can follow the programming and learn it in a few days." Chen Yu said.

"As far as I know, PLC only supports English and numbers!" Li Dazhu asked in confusion.

"Change the program in it, and you can recognize the pinyin?" Chen Yu said disapprovingly.

"Xiao Chen, will you still change the procedures?" Wu Zhensheng asked with a dizzy look.

"Isn't it that I made the software used by Tengshan Investment Company?" Chen Yu asked back.

"Yes, why did I forget this?" Wu Zhensheng slapped his forehead.

More than two hours later, the remaining nine CNC machine tools, two CNC two-axis grinders, two CNC five-axis grinders, and four CNC milling machines were moved to the idle workshop of the Tengshan Smelter.

"When the tungsten steel wire is made and the grinding wheel is bought, the drill bit can be produced." Wu Zhensheng smiled.

"It's getting late. If there is nothing else, I'll go back first." Chen Yu said.

"Be careful on the road." Wu Zhensheng said.

Chen Yu nodded and left on his bicycle.

The next morning, he came to the school again. It would take a few days to officially produce the drill bit. He was idle and had to go to school to study. Looking at the unparalleled Tang Shi, he couldn't help but be moved.

"The top beauty who has not yet grown up has a unique charm. She is so charming now, and she will definitely be more beautiful in the future!"

Before traveling through time, Chen Yu always regretted not playing with his girlfriend while studying, which made him in his thirties and still a bachelor. Now he has traveled through time and returned to his school days. How could he miss the opportunity?

"Who can't care about the first love that ends with one's own will and the unswerving love?"

Smelling the faint fragrance and looking at the teacher on the stage, Chen Yu, who looked dull, started to quarrel in his mind.

"She is mine, now, then, forever!"

"She is only fourteen years old, a little girl, what's the best thing about filming?"

"You are awesome, you are in your thirties, why are you still a bachelor?"

"I have at least had a deep communication with women, and you are just a little brat who knows nothing!"

"I'm you, you scold me, you're scolding yourself."

"Yes, are you me, me or me, anyway, I think a woman with a full body is more attractive."

"Do you dare to say, do you don't like beautiful girls?"

One thought flashed in his mind. After asking himself, he found that he had fallen in love with Tang Shi.

"Chen Yu, come up and do this question." Sun Zhengfeng shouted.

After coming back to his senses, he quickly walked up and finished the questions on the blackboard in a few strokes.

"You can do such a difficult question?" Tang Shi asked with beautiful eyes flashing.

"I don't even look at who I am?" Chen Yu whispered.

"Hmph, what's so proud of?" Tang Shi said disdainfully.

"How about I'll take you to and from school in the future?" Chen Yu asked in a low voice.

Tang Shi was happy, and did not nod or shook her head. Instead, she asked, "Why?"

"A girl in the third year of junior high school is not someone... I'll go along anyway," Chen Yu said.

During the break, he heard from his classmates that there was a girl in the third year of junior high school...

"Yes!" Tang Shi responded like a mosquito and flies.

"When is the evening to finish school? When will I go to study in the morning?" Chen Yu asked.

"Study for self-study at 7 a.m. and school at 10 a.m.," said Tang Shi.

"Okay, every morning at 6:30, I will wait for you in the noodle restaurant, and at 10:00 in the evening, I will come to the school to pick you up." Chen Yu said.

"Will it be too troublesome?" Tang Shi hesitated.
Chapter completed!