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Chapter 97 Accident Analysis
The tenon of the blade is extremely demanding, and even a groove smaller than a hair is not allowed. Such a small defect may cause fatigue cracks and then break.

If there is such a problem with one or two blades, it is sporadic, and it will be dealt with in the workshop, and the nature of the batch problem is completely different.

Wang Tianfang looked at the time and asked, "Director Jiang, I heard that Xiao Lin once worked as a broaching technician, is that right?"

Jiang Haitao, the technical director of Workshop 406 who attended the meeting, replied, "Yes, Comrade Lin Feng has worked as a broaching technician for more than two years. He used to be in charge of the broaching technology in our workshop."

"Okay." Wang Tianfang said, "This morning's meeting ends here, and the meeting will continue at two o'clock in the afternoon. Director Jiang, please inform Xiao Lin to attend this afternoon's meeting."

"Okay, I will definitely know." Jiang Haitao replied loudly.

Others in the meeting room were silent.

Unexpectedly, Deputy Director Wang personally named Lin Feng to attend the meeting in the afternoon, which shows the importance of Lin Feng in the mind of Deputy Factory Wang.

Why did you ask Lin Feng to attend the afternoon meeting?

Wang Tianfang has his plans and ideas.

On the one hand, Lin Feng has been in charge of broaching technology and is an expert in broaching, and the tenon of the blade is also broached.

On the other hand, whenever encountering difficult problems, Lin Feng can always create miracles and often come up with solutions to the problems.

This time, can Lin Feng also come up with a solution?

Although the situation is already clear, there are a total of ten blades with small grooves on the tenon, but what is the reason?
What is the reason for this quality problem? The source of the problem has not been found out in the morning meeting. Due to time constraints, the meeting was temporarily adjourned and the meeting will continue in the afternoon.

in the afternoon.

Lin Feng arrived at the technology room about 10 minutes earlier, basically like this every day, and the timing was very accurate, and it almost became his habit to go to work about 10 minutes earlier.

As soon as he sat down, Jiang Haitao's voice sounded at the door, "Director Lin, Chief Engineer Wang personally ordered you to attend the technical analysis meeting held in the blade workshop at [-] p.m.."

what!
It was Mr. Wang who ordered the generals himself!

Colleagues are envious for a while!

Especially those old comrades who have worked for one or 20 years, enviously said, why did Mr. Wang never order my general, even once.

Lin Feng didn't care about the reactions of his colleagues, he stood up immediately, took a notebook and a pen, and went out with Jiang Haitao.

Arriving at the meeting room of the blade workshop, he opened the door and went in. Lin Feng found that many people were already seated, and the meeting was about to start.

Even, Lin Feng felt some eyes looking at him, with approval, admiration, and envy. Lin Feng nodded modestly towards everyone, and then found a seat in the corner to sit down first.

He was not prepared at all, and he was not very clear about the situation, so Lin Feng sat quietly in the corner and listened carefully when he was ready.

Gradually and completely understand what is going on.

Lin Feng thought in his heart, it seems that this time the leaf workshop is a big deal, there are more than a dozen French blades, the number of imported blades is not sufficient, and every piece cannot be wasted.

Wang Tianfang was still presiding over the meeting, "Comrades, more than a dozen blades have the same problem. I really want to know why such a problem occurs. Call the operator over and I will ask."

The leaders of the leaf workshop lowered their heads again. Such a thing is shameful.

The operator came in quickly, with a look of embarrassment and lowered his head, as if he had made a mistake.

"You are the operator?"

"Yes, I processed these blades."

The operator is in his [-]s and wears half-worn work clothes with some oil stains on them, because the broaching blade tenons use cooling oil instead of cooling liquid.

"Tell me, what is the situation, why there are so many leaves with the same problem." Wang Tianfang was a little annoyed.

The operator lowered his head, "We processed the test piece and the first piece are all qualified, and there is no groove, because there is no problem in the processing of the test piece and the first piece, we relaxed the inspection, and only conducted random inspections in the middle. After we found that there was such a small groove in the tenon of a blade, we went back and checked the dozens of blades that had completed the broaching of the tenon.”

He explained the situation slowly.

Many people sighed softly. The operator needs 100% self-inspection for this kind of key and important parts.

After inquiring about the situation of the operator, Wang Tianfang personally passed the leaves on the table to everyone and asked everyone to take a look.

"Let's take a look, it's just such an inconspicuous little defect, these blades can only be scrapped."

It hurts!
The blanks of each blade are imported, and the price of each blade is not cheap, as high as thousands of dollars per piece, almost equal to the same weight of gold.

A small turbine blade weighs only 1000 to [-] grams, and each piece costs more than [-] yuan to buy from Meca.

Lin Feng also got a leaf, which was passed by the person next to him, and he carefully looked at it for a while under the light.

This small groove is really inconspicuous, thinner than a hair, and it's really hard to find if you don't look carefully.

Lin Feng dug the button gently with his nails, and felt it, indicating that the groove should be two or three wires deep. If it was very shallow, there was not even a wire, and there would be no obvious feeling when the nails were digging on it.

After everyone finished looking at the blades, Wang Tianfang got up and waved, "Let's go, let's go to the manufacturing site. We must find out the cause of this quality problem today."

What caused it, this must be figured out.

Not only to find out the reason, but also to solve it, there are dozens of turbine blades waiting to be broached.

If the reason is unknown, no one dares to continue processing, in case such quality problems occur again.

A group of people came out of the conference room, appeared in a mighty manner at the production site of the blade workshop, and walked directly towards the blade broaching machine.

There are a total of 30, NO.[-] people, including many leaders like Wang Tianfang. As soon as the team entered the production site, it immediately attracted the attention of many workers.

　This chapter has been adjusted accordingly.

　　
　
(End of this chapter)