"There is another very important point you need to know. Look at this drawing. Do you see the datum mark on it? The part clamped by our machine is actually the datum, and our clamping claw is the indirect datum of the workpiece!"
"If the claws are clean, ensure that the basis for holding each part is the same! If one part is clamped with iron chips, and another part cannot be clamped with the same iron chips, then The standard has changed! Parts that are not processed with the same standard will obviously cause problems when they fit together!"
"Even parts processed by different machine tools will have geometric errors, which is why so many things are derived. We must try to avoid human deviation problems when processing products, do you understand?"
Looking at several students gathered around, Ji Donglai simply started to explain the matter. Li Chunhe was also listening attentively, and a group of students nodded continuously.
When they dispersed again, many students started taking notes. The monitor even sent a student to take the initiative to clean the surface of the semi-finished product.
Carefully check every item on the drawing, especially the location of the datum.
"Young man, your craftsmanship is real! It's really not bad. Very few people can understand machinery so thoroughly. Most practitioners in this industry are just fools. To use my old man's words, generally anyone with some ability is not doing grease. Mahua's job is messy and tiring! You are underestimating your talents here..."
Li Chunhe snuffed out the cigarette butt in his hand and put it in his pocket. Li Chunhe looked at Ji Donglai with a sincere face, while Ji Donglai smiled faintly.
"It's not about talking about it. It's just about making some money to support the family! There is no distinction between high and low, and no occupation. This industry relies on craftsmanship to make a living! In fact, it's all the same. Master Lu does not allow outsiders to come in. If you need anything, call me. Let’s go out and talk!”
Ji Donglai didn't take kindly to Li Chunhe's compliment.
Ji Donglai especially disliked the other party's uninvited visit.
Because just yesterday, when Ji Donglai was doing trial production, he found something wrong with the workpiece. At first, Ji Donglai thought it was because of the students' lack of experience.
I ended up getting one myself, and after checking it, it was crooked. Ji Donglai hurriedly checked the machine tool and found that the machine tool's spindle travel was offset by 0.5 degrees, which a non-expert would not be able to tell.
Even for an expert, it is difficult to detect without paying close attention.
Ji Donglai checked all the machine tools here by the way, and all of them were in the same situation without exception. This proves that it is definitely not native to the machine, but is probably a unified behavior of a certain person.
According to the conventions of the machinery industry, it is a rule that outsiders are not allowed to enter the new factory. What's more, there is a conflict between Lu Shipeng and Li Chunhe. The other party will not come to Lu Shipeng's territory without a special purpose.
Now that the other party came uninvited and was still staring at the product, obviously coming to see a joke, Ji Donglai could now be sure that it was the other party who got the machine tool.
"Haha, it's easy to talk, young man! Just call me if you have anything. When you have nothing to do, we can also communicate casually. Find time to have a drink together, haha..."
After being pointed out by Ji Donglai, Li Chunhe felt guilty and left angrily, constantly cursing Ji Donglai for not knowing the rules.
There is always a chance that your heart will make you unable to eat, so we will see.
"Thank you, Mr. Ji, we are very willing to learn from you!"
Ji Donglai was about to go home. Before leaving, he wanted to explain to the students what to do at the scene and teach them some unique skills. Several student representatives sent Ji Donglai to the door directly.
Especially the students who often made mistakes in the past two days gave Ji Donglai a box of things.
"Don't be afraid of making mistakes. Remember that our industry is a process of constant mistakes and corrections. They are all dead things. Just don't be clever!"
Ji Donglai didn't refuse the things given by several people. After all, they were all of the same age and they didn't have anything valuable.
"We are not afraid in front of you, but not in school. The master scolded us to death! Just because we didn't hold the workpiece properly that day, the master scolded a student to tears! We later gave the old guy a gift, and the master scolded us to death. Guys don’t scold us!”
"Actually, we are all here to learn something. Why do you want to do this to death? We just don't understand. How can we be so domineering these days when we know how to order things..."
Several students from the technical school stood in front of Ji Donglai and vomited their bitterness. Ji Donglai smacked his lips and secretly thought that it would be like this in another twenty years.
Old technicians, especially those who are older, have gained a certain amount of factory experience.
Especially the group of old people who experienced the Anshan Iron and Steel Constitution, all of them had bright eyebrows, so they were not surprised, and at the same time they felt a little moved in their hearts.
"If you classmates are worried about not being able to learn anything at school, then come over here for an internship, and then I will give you an internship report! The salary may be lower in the initial stage, which will provide food and accommodation, and there will be enough food and fish! When you have learned , I will give you a salary increase when the time comes, and I will go back and tell Mr. Lu!"
Students who are willing to learn something are a rare breed in any era. You can just use this platform to choose what you need.
Ji Donglai made up his mind and offered an olive branch to these children again.
"Okay, Mr. Ji, tell us when you come back one day, and our classmates will come over. Except for you, we rarely want to learn from you, and we don't want to be scolded! Even if we give you money, we are still willing to learn from you. It would be best for us to work with you after we graduate..."
This group of people was very happy to hear that Ji Donglai allowed his classmates to also come for internship.
After all, these days there are very few places that are really willing to let students intern for internships, and even those state-owned enterprises are just looking at the results.
Ji Donglai left a page for one of the students and agreed to page the group before returning.
Originally, Ji Donglai wanted to go back to Hebei directly, but he didn't want to be called back by Wang Jue.
"What? My grandparents are here? Are you kidding? The old man is not at home to recuperate. Why are you walking back and forth? He just finished the operation!
When Ji Donglai heard that grandpa was coming, he felt dizzy and secretly played the piano randomly.
"Tch, don't come here! It's not because of you that the only one in our family studying now is you taking the college entrance examination. Grandpa insisted that he couldn't miss your college entrance examination. Go pick him up at the station! Don't you have a car? Come to the counter to pick me up. Just bring something to the old man!"
Wang Jue rolled his eyes for a while, and he didn't want anyone to mess with him.
But Ji Heng had that temper, and no one in the family would listen.
Out of concern for his eldest grandson, Ji Hengfei came to support his grandson's college entrance examination. This was indeed the case in Ji Donglai's impression, and the incident with the house happened a few years later.
