After completing the fourth stage simulation of the Dragon Heart, Ye Zhou did not rush to start the fifth stage simulation. There are two reasons for this.

First of all, there are 4 technologies in my hands. It will take some time to completely digest these technologies. However, recently, the flower carpet project of the Liming Factory has entered the production and manufacturing stage from the initial picture reading and analysis stage. His work has suddenly become busy. He has to travel around various workshops every day to check the material characteristics and manufacturing processes. After returning home, he wishes he could sleep with his pillows. He really doesn’t have much energy to perform high-intensity simulation.

According to his plan, he plans to survive this most difficult cold start-up stage first, and wait until the flower carpet project is mature and the manufacturing process is basically smooth, and then take time to complete the last stage of simulation.

Early that morning, Ye Zhou came to the hot processing workshop as usual. The night before, the workshop engineer had already made an appointment for him and wanted to ask him to help him see the problem of processing the blades of the hollow fan without convex shoulders and wide strings.

After arriving at the workshop, Ye Zhou saw that the engineer named Huang Liangxin who had contacted him had already been working in his office.

Ye Zhou walked up and knocked on the door. The latter looked up and saw that it was him. He quickly stood up and ran out to greet him.

"Mr. Ye, I'm really embarrassed. I was reading the document just now and forgot to go out to pick you up..."

"It's okay, don't be fooled."

Ye Zhou waved his hand and continued to ask:

"What are the problems you are facing now?"

"The main problem is the spf/db process. Although we have also built fan blades before, we have never made such giant fan blades with a length of 1.8m, so there are problems with the operation process and specification. I would like to ask you to help you check it out."

"We have conducted two trial productions of fan blades, but the results are not satisfactory."

Ye Zhou nodded and replied:

"Don't call you yours, just say you. What is the specific problem? Have you conducted a self-examination?"

Huang Liangxin quickly took out a stack of documents from the table, put them in front of Ye Zhou and replied:

"I have organized two self-inspections to correct some parts of the operation that do not meet the requirements of the document, but for some reason, the fan blades produced do not meet the requirements in terms of strength and creep resistance. I was wondering if we did superplastics and had problems with the surface stress of the titanium alloy wrapping layer."

When Ye Zhou heard Huang Liangxin's words, he was stunned.

In theory, a turbofan blade that is perfectly manufactured under modern industrial technology should not have stress concentration problems. If it really occurs, the reason is likely to be caused by unstable heating process or uneven heating in various areas.

Titanium alloy is a metal with extremely high strength at room temperature but extremely poor plasticity. It is crazy to process it into a three-layer structure hollow fan blade that is commonly used by modern AVA.

Therefore, the mainstream processing technology in the world is manufactured by superplastic forming and extension. This manufacturing process requires the heating of each part of the titanium alloy at a stable speed to a temperature range that satisfies its superplasticity and can be diffusion-connected. This range is generally between 900 and 1100 degrees Celsius.

However, the specific temperature control must take into account the characteristics of the composite material wrapped in titanium alloy. The conditions faced by each manufacturing are different. Even if there is no reliable function to describe it in the complete document obtained by Ye Zhou, it can only be done by experimenting once and once.

However, such experiments are very costly because you cannot judge whether the temperature is appropriate during the manufacturing process and whether the surface of the titanium alloy has stress concentration, and you can only wait until it is formed before using professional instruments to measure it.

This brings great waste of manpower and resources.

If you want to solve this problem, unless there is any instrument that can measure the stress concentration point on the fan blade surface during the thermoforming process, thereby eliminating concentration by changing the local heating rate.

At present, there seems to be no type of instrument in the world that can do this.

----Except Ye Zhou himself.

Thinking of this, Ye Zhou asked:

"Do you have a trial production plan today? Take me to see the heat treatment process."

Hearing Ye Zhou's words, Huang Liangxin nodded quickly. After only half an hour, the two of them were already standing in the heat treatment workshop with full protection.

Production workers carefully put various materials into the lathe according to the requirements of the operating documents. They monitor every value on the screen. Once the numerical jump occurs, they need to report an alarm immediately.

The more times this warning is, the lower the success rate of the fan blade.

Everyone was nervously staring at the numbers, with Ye Zhou being the exception.

What he was not watching the system reading, what he was watching the machine tool observe the blades themselves in the casting process in the porthole.

At this time, the manufacturing process has reached a critical stage of titanium metal covering. The temperature is gradually rising. Ye Zhou stared at the surface of the fan blade. The talent of the "Structural Master" is running wildly, trying to find the possible stress concentration point from the fan blade.

Such a stress concentration point is different from any situation that Ye Zhou has been in contact with before. Its concentration is too low and the signal it brings to Ye Zhou is extremely weak. He also has to constantly eliminate those caused by the incomplete extension of the titanium alloy, which is only temporary stress concentration.

After staring at Ye Zi for an hour, Ye Zhou's eyes suddenly lit up.

"The temperature at the leaf shoulder is low. Adjust the local temperature and increase it by 100 degrees first."

"Okay, adjust the parameters!"

Huang Liangxin said to the operator beside him.

As the temperature gradually rises, the stress concentration point that appears obvious in Ye Zhou's eyes gradually disappears.

He nodded with satisfaction and continued to look at the leaves in the porthole.

This superplastic forming machine tool is a machine tool independently developed and manufactured in China. It has a tensile load of 25kn, a torque of 200nm, a 25kn actuator stroke of 4inch, a torsional actuator twist angle of 270°, and an ambient temperature regulation and control range of -75~1400°c. It belongs to the most advanced batch of similar machine tools. Without this machine tool, the imitation of ge-9x is basically impossible to achieve.

After a few hours, Ye Zhou's eyes were already sore, and the leaves finally took shape and entered the cooling and fine polishing stage.

Ye Zhou and Huang Liangxin returned to the office. The latest test results will take several hours. He and Huang Liangxin drank two cups of tea, asked about some processing progress, and then turned around and left the workshop.

He couldn't wait here, and there were many work workshops with the same problems as Huang Liangxin waiting for him to solve.

He was busy until after six o'clock in the afternoon, Ye Zhou left the work area and went to the factory cafeteria for dinner. However, as soon as his feet stepped into the cafeteria, someone chased him from behind and grabbed his arm.

"Mr. Ye! It's done! The leaves are done!"

The person who came was Huang Liangxin, and his face was filled with unconcealed surprise smile.

He never thought that the young man in front of him could solve problems that they could not find from the data by just using naked eyes.

---Of course, this is not a fantasy, but this ability often only appears in old engineers with decades of experience.

And the young man in front of him was only 23 years old.

Ye Zhou was not as excited as he was, but just asked calmly:

"Have the process flow parameters been recorded? Can they be cured?"

For Ye Zhou, it is not important to solve the problem once. What is important is to solidify the solution to the problem so as to avoid the occurrence of similar problems in the subsequent process.

Otherwise, will you still keep staring at each leaf in the future?

That's too nonsense.

Hearing Ye Zhou’s question, Huang Liangxin nodded repeatedly and said:

"It's been recorded! We will organize the whole study today and conduct another experiment tomorrow. If it succeeds, this process can be solidified!"

"Okay. Let's go and have a meal."
Chapter completed!