A nation's industrial development begins with junior engineers.

"That's the situation! Xiao Jiang, what do you think?"

How do you see it? I'll stand here and watch!

Jiang Xia, who was urgently brought back, was also a little frustrated. These masters were so enthusiastic that they completely forgot what he had told them.

Do you know why those first few prototype engines were able to operate normally?

The main reason is that only master chefs were transferred, and the number of them was not large. Jiang Xia could easily see their minimum standards by looking at the finished products they made.

Yes, the lower limit!

The accuracy is adjusted by lower limits, and within the specified gap range, the tolerance range of each component is maintained within the operable process standards.

This is the key to the smooth assembly and operation of the engine.

In layman's terms, how much water a bucket can hold is determined by the shortest plank!

Once a production workshop is set up, the lowest level of the workers inside is level 5, and the highest level is level 8.

The master craftsman, at level 8, showcased his exceptional skills, crafting each part with unparalleled beauty.

Take crankshaft gears and timing idler gears as an example. Their assembly clearance requirement is 0.120-0.350. These master craftsmen directly achieved an average clearance of 0.180, not a bit more or less.

But what about the other craftsmen? Their values ​​fluctuate between 0.12 and 0.30.

Even parts made by the same craftsman cannot be guaranteed to be completely identical. The fact that such parts can be assembled is a testament to the craftsman's skill.

Jiang Xia was furious and unleashed a torrent of angry words.

From fitter to machinist, from machinist to technician, from technician to manager...

Hmm, never mind.

I dare not criticize my own master, but I can't criticize him anyway.

My mentor was just invited by the Ministry of Chemical Industry. They said that the nitrogen and phosphorus compound fertilizer project introduced by the Ministry of Agriculture seems to have encountered some problems, and they asked him to go and take a look.

Then let's switch to criticizing the factory manager!

Seeing that things were not going well, Li Huaide made a hasty retreat.

Yang Youning was a bit silly; Jiang Xia's words almost made him faint.

After spraying, we still need to figure out a solution. We've been working overtime these past few days making so many parts, it would be such a waste to just scrap them like this.

Actually, these parts are alright. Even if they are weakened for a few more days, Jiang Xia can still use his fault scanner to find good parts and assemble a working engine.

The key issue is how to arrange subsequent production. It's impossible to keep the scanner running and watch it all the time. If you do that for two days, Jiang Xia will probably be drained dry.

After circling the workshop a few times, my once neat hair was now a messy bird's nest.

I've got it! Let's use the barrel theory.

Jiang Xia clapped his hands: "All the craftsmen, get moving! Keep a calm mind and work on another part you have on hand. Don't deliberately slow down. Just work at your average speed over the past few days!"

"Master chefs, please don't show off your skills, just do a simple one!"

Jiang Xia then called over Ma Weihong: "Sister Weihong, do you have the data from the parts testing these past few days?"

Ma Weihong nodded. "We have the data from the past few days. Although all the parts are up to standard, Li Tiejun still insisted that the quality inspection department write down the actual dimensions of the parts and mark them with numbers."

Jiang Xia's eyes immediately welled up with tears. "Comrade Tie Jun, save my life!" she cried. "With this data, we don't even need to turn on the scanner!"

If it weren't for Comrade Li Tiejun still recording the operation of agricultural machinery in the commune, Jiang Xia would definitely have taken good care of him.

"Sis, let's get this data first. Draw some rough groups, putting those with similar values ​​together!"

"Then, classify them according to their compatibility: the gap range decreases by an order of magnitude of 0.2; the interference range increases by an order of magnitude of 0.1!"

"Closed gap~ Well, there's nothing we can do about the closed gap, we can only use 0.2 as the base."

"However, the closing gaps are all air rings, and it seems that only Master Qin can make this part. So there's no need to worry too much."

Ma Weihong nodded upon hearing this. Although the workload was enormous, she could still manage to get it done if she gritted her teeth.

Seeing that Jiang Xia had finished speaking, Ma Weihong waved her hand and led her team to start working.

In this era, whether they are technicians or workers, they have never been afraid of facing difficult problems. What they are afraid of is not having anyone to guide them, or being given bad guidance.

Fortunately, Jiangxia seems to be a reliable person now.

Didn't you see that even Yang Youning was nodding repeatedly as a series of orders were given?

After giving the instructions, Jiang Xia turned his attention to the machine tool next to him.

There's not much to say about that brand-new C620-1.

The first ordinary lathe developed since the founding of the People's Republic of China is one that has been featured on the new version of banknotes.

Looking at the other units, wow, they're still belt-driven.

I reckon those severely eccentric shaft parts were machined on these lathes that were moved from the machine factory.

But that shouldn't be the case, right? If it can operate, then machining a shaft-type part on a regular lathe should be a matter of skill and precision. Even if the operator is skilled, the problem should be a dimensional inaccuracy, not an off-center deviation.

After all, no one who can get into this workshop is a first-class worker.

The lathe was running, and Jiang Xia stared intently at the steps, muttering to himself, "Next, it's time to stop and change the surface."

Sure enough, the operator pressed the power button to stop the machine. However, due to the belt drive, although the motor stopped rotating, the lathe spindle still rotated a few more times under the belt's influence.

Jiang Xia's eyes widened. Yes! That's it!

This old-fashioned lathe doesn't have a feed box or leadscrew, and the slide box doesn't exist either. The feed movement of the cutting tool is all done manually by the master!

He hurried a few steps and arrived at the lathe. Yang Youning followed closely behind like a little follower.

As Jiangxia approached, Ning Dawei, who was operating the lathe, became somewhat reserved.

Jiang Xia offered him a cigarette, "What's your surname, Master?"

"Ning Dawei! Level 6 lathe operator!"

"This part must be difficult to make!"

"Yes, the processing is quite difficult, and it will require multiple stops to make the part."

"Have you noticed that this lathe rotates a few more times after the power is cut off?"

"Hey! I've been using this lathe for years, how could I not notice! Look, the requirement for this part is 3 centimeters, so I have to stop at around 2.7 centimeters, and the extra revolutions will be enough to make up the remaining 0.3 centimeters!"

Jiang Xia gave a thumbs up, "Amazing!"

Yang Youning, following behind him, curled his lip: "Little brat, speechless now? Looking at how happy you are, I thought you'd really discovered a flaw."

As a result, everyone else knew everything. Pshaw!

As if hearing Yang Youning's thoughts, Jiang Xia took out a strange-looking object and waved it at Yang Youning.

This thing has a semi-circular handle and a circular sleeve at the back.

"Outer diameter micrometer?"

Just as Yang Youning was wondering what this thing was, Ning Dawei exclaimed.

"Oh, Master Ning has used it?"

"Hey, of course I've used them, back when they were used for vehicle-mounted cannons~~~"

"Pah! Pah!" Master Ning slapped his mouth a few times with his hand.

Yang Youning grinned as he watched Master Ning's movements: "What's there to be afraid of! Workshop One in the factory still makes tractor trailers! We're all on the same side!"

Master Ning thought for a moment, then smiled.