bonanza

"In this case..." Yang Dongsheng turned his head, "I'll ask them to make another batch of nickel-iron alloy with lower hardness and send it over, as long as the melting point is okay!"

"Can the hardness and melting point of this nickel-iron alloy be adjusted?" Vice President Wang was even more shocked.

"Of course!" Yang Dongsheng nodded, "Let's do this! I'll ask them to make a batch of products in gradients according to the difference between hardness and melting point. It's up to you to choose which grade of alloy to use and the subsequent production process. You can also make your own Specify a hardness and melting point, and I'll let them make it!"

"Can you still specify?" Vice President Wang felt like he was going crazy.

This is not to blame him, if his material science teacher in college heard that someone can control the hardness and melting point of nickel-iron alloy at will.

Either jump up and hit someone, or go crazy too!
"However, the hardness and melting point must be related to each other. It is impossible for one to be high and the other to be low!" Yang Dongsheng emphasized.

In case Vice President Wang wanted a nickel-iron alloy with a hardness of 20HRA and a melting point of over 3000 degrees, he really didn't have it.

"Of course!" Vice President Wang didn't show any disappointment, but said with hope, "President Yang, can I meet the people who developed these materials?"

"I'm afraid it's inconvenient!" Yang Dongsheng said perfunctorily.

When Yang Dongsheng bowed his head to talk to Vice President Wang, other people in the conference room were watching him.

He lowered his head and asked the director of the Materials Research Center next to him in a low voice, "I heard that when you were doing the test just now, you broke the diamond indenter?"

The director of the cemented carbide processing workshop looked at the director of the material research center and asked, "You have taken the material for several hours. Even if the specific melting point has not been measured, you should have an approximate range, right?"

This is the reason why the so-called county magistrate is not as good as the current one.

"Who made this alloy? With their technical level, why don't you let them process it and send it directly?" asked the manager of the turbine business department.

What's more, although Yang Dongsheng is the big boss, they usually don't have access to it.

The director of the hard alloy processing workshop thought for a while and said, "Then don't grind it, use a graphitization furnace! Since the expanded nickel and iron are no different from ordinary nickel and iron, the melting point of the nickel-iron alloy before expansion is very high. Then after EDM, heat it above the boiling point of nickel and iron to evaporate the expanded part.”

It was this question again, and Yang Dongsheng didn't know how to answer it for a while.

Yang Dongsheng imitated the army sergeant chief system and created the chief engineer system.

They are all engaged in technology, and there are not so many twists and turns in their minds.

"Look at this billet!" The manager of the turbine business department pointed at the table.

For precision machining of aero-engine blades, many processes must be done in one go.

"It's possible!" said the director of the Materials Research Center.

This person looked a little different from the others in the conference room, especially his hands looked much thicker than others, and his left index finger was missing a section. Those who didn't know thought he was a member of the underworld.

"This one……"

Just when everyone was nodding, the manager of the Turbine Business Department who had been silent all this time suddenly said, "Actually, I don't think it's such a troublesome thing. Haven't you noticed one thing?"

He is one of the biggest beneficiaries of the system.

"Still doing it!" The chief engineer looked out.

"This thing is so hard!" The chief mechanic looked surprised, "How about the toughness?"

"In that case, won't it expand even when cutting?" the mechanic asked.

"Just say it!" Yang Dongsheng smiled.

"How did your discussion go?" Yang Dongsheng asked with a smile.

Do you want to change the tool and continue processing?That is impossible.

Several people glanced at each other, and finally the manager of the turbine business department spoke first, "Mr. Yang, there is one thing I don't understand."

"The boiling point of nickel is 2732 degrees, and the boiling point of iron is 2750 degrees. The graphitization furnace can heat the material to 3000 degrees. This method is feasible!"

"It is estimated that it should be above 4000 degrees!" said the director of the Materials Research Center.

The director of the Materials Research Center shook his head, "I haven't done this yet, but I did a small test just now. Even though I have been using coolant all the time, when cutting with a diamond saw, there is a slight expansion in the incision. The cutting depth exceeds 2 cm After that, the saw blade got stuck!"

The director of the Materials Research Center glanced in the direction of Yang Dongsheng and Vice President Wang, and seeing that they were still talking, he nodded and said, "En!"

The chief mechanic sighed, "I feel like this time I'm going to hit the nail on the head!"

"what's the situation?"

If the machine tool breaks down during the processing, or the tool wears seriously and the accuracy is not enough, the processing has to be interrupted.

In contrast, the incision made just now with a water knife is as blurred as frosted glass.

"I think EDM should be used! Even if it really expands and becomes soft, it won't all expand and soften, right? We can leave a machining allowance, and then grind off the expanded and softened part." The director of the quality alloy processing workshop also stretched his head over, "What is the softening layer of this material?"

The director of the material research center glanced at the director of the cemented carbide processing workshop and said, "So I think that at least the swelling and softening layer should be worn off, I'm afraid it won't work!"

In fact, he is the head mechanic of a cemented carbide processing workshop. He used to work in a large state-owned aero-engine factory in his early years. The missing finger was broken when he was turning on the machine tool.

In contrast, they were more in awe of Vice President Wang.

Although a piece has been cut off, except for the cut off part, the other corners are still very straight.

After the alloy expanded, it was readjusted by Yang Dongsheng.

Especially those surfaces, smooth as a mirror.

The entire blade can only be scrapped.

Among them was a middle-aged man in his forties and wearing blue overalls, who had been observing Yang Dongsheng for a long time.

At this moment, Yang Dongsheng and Vice President Wang finally finished their discussion.

The chief engineer watched for a while, and saw that the two leaders kept talking.

While the other people were amazed, they couldn't help but nodded at the same time.

In fact, if it's just a straight line object, or a simple cylinder, he can make some, just like those nickel-iron alloy segments, and it's not a problem to make thousands of them.

However, the shape of the blade of an aero-engine is very complex and contains a large number of free-form surfaces.

He really can't make it.

"Cough cough!" Fortunately, Vice President Wang coughed lightly at this time, and relieved Yang Dongsheng, "Brother departments have their jobs, and we have ours. Don't push the jobs to others!"

After Vice President Wang finished speaking, he gave the manager of the Turbine Business Department a hard look—all the work has been handed over to others, what the hell are we doing?
Yang Dongsheng smiled, "It's okay! Everyone express their opinions!"