Back to the 80s Machinery Factory

Chapter 431 I need to find a way to tightly bind you all

The wool must be sheared in time.

Now, Zhang Diancai needs samples, so he can talk to the lab and ask them to help draw up the blueprints.

Why not take advantage of your current value and get others to draw more for you?

Once their research project is finished, it won't be so easy to find them again.

Without even eating, Chen Luyang boarded a bus and rushed back to the mechanics department laboratory that afternoon.

The laboratory door was ajar, and the faint sound of pencils drawing lines could be heard from inside.

Zhang Nan was sitting at the drafting table, making annotations on a drawing.

Hearing the door open, he looked up and saw Chen Luyang walking in carrying a bag.

"Xiao Chen?" Zhang Nan put down her pen.

"Why are you here today? Did you finish making the prototype?"

"It's done." Chen Luyang nodded with a smile, put down her bag, and said softly:

"I tried assembling it once, and it went pretty smoothly overall... but there are a few things I'd like you to take a look at, to see if there's any room for improvement."

He took the nozzle part out of his bag, placed it on the table, pointed to the threaded interface, and said:
“Like this one… During assembly, the worker said that there was a small floating edge on the threaded edge. It wasn’t too big, but he was worried that it would accelerate aging under high temperatures.”

"I was thinking, could we refine the drawings a bit more?"

"Or perhaps I need to remind the master about the knife-cutting process?"

Zhang Nan reached out and took the part, then took out the original drawing left in the lab for comparison, and her brows furrowed slightly:
"It's not a structural problem. It's probably that the toolpath retraction section wasn't controlled steadily enough, causing the spindle to run out of control. The factory's cutting tools might be an older model, and they weren't following the standard path."

"It's not that the drawings are wrong, the problem lies in the tool setting process."

"The part of the cutting diagram is not clearly marked. If the worker is in a hurry, it is easy to pull out some rough edges."

Chen Luyang then said, "Senior brother, I know that drawing takes a lot of time. Could you see if we can revise it again?"

"This way, we can confidently and boldly increase the quantity on our side."

Zhang Nan agreed without hesitation: "Of course, since I've drawn the diagram for you, I'll definitely take full responsibility."

"I'll provide you with a tool setting diagram, dividing the spindle cutting sequence into two parts: first, a light cut to set the shape, then a deeper cut. This will greatly reduce the problem of floating edges."

As she spoke, Zhang Nan picked up the pad that Chen Luyang had brought.

"Where's the gasket? Is there a problem?"

“There is indeed a small problem,” Chen Luyang said. “The gasket works fine on the 212, but it’s not thick enough when it’s installed on the old Jeep.”

"I was thinking, should we make two sizes directly on the drawings? Do you think it's better to make it thicker, or to draw two separate versions?"

Zhang Nan listened attentively and said, "If the thickness difference is 0.2, I suggest we simply set up two versions. One is 4.2 and the other is 4.5."

"Please clearly label each compatible car model when you ship, and your factory can ship them separately. That would be the safest approach."

"Yes, yes, yes!" Chen Luyang nodded repeatedly.

"Teacher Zhang also said that we should take this opportunity to run through the limits of the general-purpose parts first."

"If we can get a clear understanding of the data this time, we'll be more confident when making standard parts in the future."

Zhang Nan also got excited, and while listening, she pulled out a draft paper:
"Today is Saturday..."

"Okay, I'll draw it tonight, both the revised structural diagram and the new cutting diagram."

"I'll deliver it to you before noon tomorrow. Your factory can try it again later and see how it goes."

Chen Luyang was trying to figure out how to say the right things to get Zhang Nan to give her drawings the green light.

When I suddenly heard that Zhang Nan had volunteered to work overtime to draw blueprints for me, I was incredibly touched.

"Senior Zhang Nan, thank you so much for your help."

"You've helped me so much, I don't know how to thank you enough!"

Zhang Nan laughed and said, "Forget it! I'm just drawing a few blueprints, it's no trouble at all."

"We analyzed those discarded nozzles and broken shock absorbers you sent over ten days and actually found a parameter model for stable fatigue fracture."

"Professor Zhang said that we have achieved results this time, and he plans to take us to a small mechanical structure conference at the end of the year, where we might be able to publish a paper."

"If it weren't for the sample models you sent, our project wouldn't be progressing so smoothly..."

As Chen Luyang listened to Zhang Nan's words, a cold glint flashed in his eyes!

Although he was smiling on the surface, his heart was already racing with excitement.

...The fact that the project is going smoothly is not a good thing for him!

He strongly disagreed that the trial parts for the first batch of general-purpose parts had only just been produced, and he planned to strike while the iron was hot, develop three standard parts in six months, and promote ten standard parts in one year.

Accumulate it little by little like this

In his four years in Pian'er City, he was able to accumulate dozens of standard parts.

That number will be quite substantial by then!

To put it bluntly, he hoped that the mechanics department's research project would proceed both smoothly and unsuccessfully!
Only if it proceeds smoothly can this project avoid being abruptly canceled.

But if things go too smoothly, he'll be out of luck once the project is over.

So... we still need to think of a solution.

It would be best to firmly and fiercely bind ourselves to the laboratory and to Zhang Diancai!
Thinking of this, Chen Luyang took the initiative to invite:
"Senior, it's the weekend tomorrow. Why don't you come back to the repair shop with me and see if there are any parts you need?"

"Sure!!!"

Upon hearing this suggestion, the eyes of the people in the lab lit up!

They had been thinking of visiting Chen Luyang's repair shop for a while, and tomorrow being the weekend, they could go for a stroll.

Chen Luyang was eager for them to come. "It's settled then, we'll leave together tomorrow morning. You guys go and do some research first, see what you think of my place!"

……

Early Sunday morning, as the sun was just shining into the campus, Chen Luyang arrived at the south gate of Peking University with her schoolbag on her back.

Zhang Nan, Lin Qiming, and several other lab students were already waiting there.

To Chen Luyang's surprise, Zhang Diancai was also waiting in the line.

"Teacher Zhang, you're here too?"

Zhang Diancai nodded: "I have some free time today, so I'll go with you to take a look."

Chen Luyang said happily, "That's wonderful! Let's go then."

Leading everyone onto the bus with practiced ease, Chen Luyang, still a little worried, sidled up to Zhang Nan and whispered:

"Senior brother, is the drawing finished?"

Zhang Nan nodded, loosened the backpack behind her shoulder, and said, "Don't worry, it's all in the bag."

Chen Luyang was relieved: "Thank you for your hard work, Senior Brother."

Upon arriving at the repair center,

Director Lu and Zhang Guoqiang didn't recognize Zhang Diancai and were a little surprised that Chen Luyang had brought so many people back today.

Chen Luyang enthusiastically gave an introduction in the middle:

"This is Zhang Diancai, a teacher in the Department of Mechanics at our school, and this is Zhang Nan, a senior student. They drew our blueprints."

"These guys are the backbone of our repair shop. They were the ones who drew those hand-drawn blueprints before."

After hearing this, Director Lu took the initiative to warmly shake Zhang Diancai's hand.

"Teacher Zhang, our factory is so grateful to you. It's such a rare opportunity for you to come today!! Please come in."

Although the workers are skilled.

However, over the years, the provincial machinery factory has collaborated extensively with experts and teachers from the provincial university and other schools.

They have always held their teachers in high esteem.

Zhang Guoqiang, Liu Kangwen, Tan Rensong, and Li He all warmly welcomed Zhang Nan, Lin Qiming, and the others into the repair shop.

These students usually spend their time in the laboratory, and Zhang Diancai is a somewhat rigid person.

Aside from interacting with their classmates, they rarely have contact with people outside their class.

Suddenly encountering such an enthusiastic group of people, they were all at a loss for words.

Although Zhang Diancai didn't say it on the surface, he felt a warm feeling in his heart.

He had a hard time making these trips to the research institute each time.

Either you get a cold shoulder or you're left feeling incredibly angry.

Although he knew that these people were so enthusiastic towards him because they wanted him to draw blueprints.

But this dramatic emotional contrast made him feel very comfortable.

"This is?"

Zhang Diancai suddenly stopped, his gaze drawn to an old Jiefang truck that had been partially dismantled on the repair platform.

Zhang Guoqiang immediately explained, "Teacher Zhang, the right front wheel control arm of this car is broken. We plan to replace it with a new one; we just disassembled the outer shell."

"broken?"

Zhang Diancai's eyes lit up.

Ignoring the tool chain hanging next to the machine tool, he walked straight to the car and bent down to examine it closely.

On the side of the frame, the broken control arm was bent and deformed, with the crack extending in a serrated pattern along the edge of the bolt hole. The metal on both sides also had bluish-purple ablation marks, which were typical damage caused by high-frequency impact.

This is a perfectly good example!

Lin Qiming and the others also gathered around, their eyes shining as they watched.

The research they are currently working on requires various "metal failure components under complex service conditions".

The more diverse the sample types, the more varied the operating conditions, and the more typical the failure paths, the more valuable the modeling becomes.

Although Chen Luyang had previously brought a considerable number of samples,
However, most of those samples were small parts such as nozzles, gaskets, and levers.

This was truly the first time they had ever seen such a large component as a complete control arm, complete with cracks, disassembly and assembly records, and usage logs.

Immediately, the group of people were unable to move.

Just as they were about to get closer to examine the control arm, a sudden and noisy voice rang out from the side:
"Teacher Zhang, we have a lot of good things in our backyard and warehouse. Let me show you."

Zhang Diancai and his students were slightly displeased at being interrupted.

But when they heard there were more good things, their curiosity was piqued.

They followed Chen Luyang to the backyard.

Hehehe...!
A calculating thought flashed through Chen Luyang's mind.

joke!

The reason he brought Zhang Diancai and Lin Qiming to the repair shop this time was to entice them with a crazy scheme, making them eagerly anticipate his idea!
Chen Luyang observed their reactions.

After a brief exchange of pleasantries, Chen Luyang, Director Lu, and Zhang Guoqiang led Zhang Diancai and his group to the warehouse and backyard.

"These are the disassembled steering knuckles. The row behind them contains various connecting rods, pins, shock absorber sleeves, and bushings that we made ourselves. The shed over there holds old control arms and load-bearing components with stress cracks."

(End of this chapter)