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Chapter 99 Lin Feng's Inference ([-]rd)

Everyone was slightly surprised.

It never occurred to him that Mr. Wang would actually ask Lin Feng in front of so many people under such circumstances.

Some people thought in their hearts, what a face!
Some people thought to themselves, why didn't Mr. Wang ask me, even if I couldn't answer anything, couldn't come up with any plans or opinions, it's always good to show off.

Lin Feng was also slightly taken aback.

It never occurred to Mr. Wang that he would ask himself. It would save trouble. Just now, he was thinking that he already knew what the problem was, so how should he talk to Mr. Wang and the others.

Everyone looked at Lin Feng together.

Even the people standing in front of Lin Feng voluntarily moved out of the way, and Mr. Wang even waved, "Xiao Lin, come here, come here."

Lin Feng walked to the side of Wang Tianfang and other leaders. This is the central position, and there are many people around.

It was originally a random question without any hope, but now it is different. Seeing Lin Feng's confident look, Wuyou was relieved, and Xiao Lin really knew what the problem was.

Suddenly, his heart gradually became eager.

I also thought of all the previous things in my mind, the CNC imported five-axis operation and processing parts, and the turboprop six engine oil consumption was large and returned to the factory for troubleshooting.
"Xiao Lin, where do you think the problem might be?"

This time, Wang Tianfang was much more formal, he no longer asked casually, and there was still a little hope in his words.

Does Lin Feng really know where the problem is?
Probably don't know.

Many people thought this way, so many experts, so many engineers, no one has found out what the problem is, does Lin Feng know?
In the eyes of everyone, Lin Feng did not answer immediately, but asked, "Mr. Wang, can I have a look at these broaches?"

"Of course." Wang Tianfang replied straightforwardly.

Lin Feng nodded lightly, first picked up the fine broach and looked at it, and then looked at its inspection report.

Seeing this scene, some people wanted to remind them, especially Pan Guohua, a senior engineer in the tooling design department and a senior expert in broach design in Fenghuang Factory.

In the end, he held back, Mr. Wang didn't speak, and waited patiently for Lin Feng to check the fine broach. If Pan Guohua made a sound at this time, he would know it was wrong.

Fortunately, Lin Feng didn't spend too long checking the broach, only two or three minutes. Then he put down the broach and picked up another broach to look at it.

After carefully looking at several broaches, and especially the broaching fixtures on the broaching machine, it took nearly 10 minutes before Lin Feng stopped.

During the whole process, the surrounding people were very quiet.

Seeing that Lin Feng finally stopped, everyone quietly breathed a sigh of relief. After reading everything they should see, they should talk about what the problem is.

In fact, Lin Feng already knew where the problem was.

But it is impossible to say that I know what the problem is, but to "pretend" to check it first. Although it looks very serious and formal, only Lin Feng himself knows, it is indeed a pretense.

"Xiao Lin, how are you doing?" Wang Tianfang, who had been silent all this time, finally asked.

Lin Feng said, "President Wang, I have an inference."

"Tell me, what is your inference?"

Lin Feng said, "This small groove on the tenon of the blade should be caused by a problem with the broach, because the shape and position of the groove on the tenon of each blade are of the same height."

Wang Tianfang nodded. It was precisely because the shape and position were highly consistent that everyone deduced that there was something wrong with the fine broach.

Lin Feng continued, "I looked at the fine broach, and obviously it has no quality problems. I looked at several other broaches, and I deduced that the problem is on the No. [-] broach."

Why is the problem on the No. [-] broach.

That was what the system told Lin Feng, but Lin Feng couldn't say that, he could only say that he inferred that there was something wrong with the No. [-] broach.

There are eight sets of broaches for broaching the tenon of this blade, and the No. [-] broach is the last one, which is also a fine broach, and it is used to completely shape the tenon of the blade.

The Qihao broach is the penultimate one. It is the same as the previous No. [-] to No. [-] broaches. It is mainly used to remove material, and the excess metal material on the tenon of the blade is broached by broaching.

After broaching by the No. [-] broach, the tenon of the blade is basically formed, and the broaching allowance of each profile is less than ten wires. This broaching allowance is reserved for the last fine broach.

what!
There may be a problem with the No. [-] broach!

A group of engineers and leaders who were originally relatively quiet became lively and buzzed with each other.

Pan Guohua even expressed disbelief, took a few steps forward and picked up the No. [-] broach and looked at it very seriously.

Then he said loudly, "Playing the piano indiscriminately, how could there be a problem with the No. [-] broach."

He was the first to express dissatisfaction and openly questioned Lin Feng's inference.

Lin Feng thought it was funny, and said in his heart, I don't believe it either, but there is indeed a problem with it.

Without arguing with Pan Guohua, Lin Feng took the No. [-] broach from him, and said to Wang Tianfang, "Mr. Wang, look, this is the No. [-] broach. .”

After talking about the condition of the broach, Lin Feng picked up another turbine blade and pointed to the part where there was a groove in the blade's tenon and groove.

"The edge of the No. [-] broach broaches multiple positions of the tenon, among which there is broaching at this position. Originally, about ten wires were left for the fine broach later, but I boldly speculate that this broach has The problem, maybe it is a design problem, maybe it is a manufacturing problem. Not only does it not leave a margin for the finishing broach, but also the edge of the blade produces excessive broaching, so that the finishing broach cannot make the tenon into shape. Let the groove in this part disappear, but leave a groove with a depth of two or three wires."

After Lin Feng's deduction, it was like adding a few drops of cold water to a hot oil pan.

"Impossible, absolutely not for this reason."

"It's just talking nonsense, just open your mouth, how could there be a problem with our broach design." The section chief of the tooling design department was indignant.

Pan Guohua even said, "Young man, do you understand broaching? This is just nonsense."

Seeing the excitement around him and all kinds of doubts, Lin Feng was not in a hurry, but smiled easily, and said loudly, "Take a look at the small groove on the tenon of the blade, is it very neat, like a broach? It's the same as it was cut out."

really?
No one paid attention to this point, because this groove is too thin, thinner than a strand of hair, and it is really impossible to tell whether it is neat or not, unless a magnifying glass with a magnification of more than five times is used.

Zheng Xuewen didn't have any doubts. After listening to Lin Feng's deduction, he was thoughtful. He had already carefully looked at the small groove on the tenon of the blade with a magnifying glass under the light.

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(End of this chapter)