"Well, not bad, it can be simplified. You can delete the first two paragraphs and the last two paragraphs. These two paragraphs are adjustment procedures. They are unnecessary. Now machine tools have self-protection functions..."

After Ke Ren's guidance, Ji Dongqing streamlined the program again. As expected, the tool's trajectory changed and the process was completed faster.

"It turns out it can still be like this..."

"You can search online. There are a lot of videos on the mk website, including training videos on the official SW website. Don't worry, take your time and understand!"

Faced with Ji Dongqing, a child who worked so hard, the teacher taught extremely carefully. The get out of class was already over. The other students hurriedly went back to play games. Only Ji Dongqing was still discussing with teacher He.

After class, Ji Dongqing originally wanted to treat the teacher to a meal, but he decided not to do so because he didn't want the teacher to still have classes.

In the next month, Ji Dongqing's major was in the campus factory, doing in-person internships in casting, forging and welding.

"Dong Qing, I heard that you have taken on a lot of work for Lao Shen and the others?"

In the foundry workshop, during recess, the old master in the foundry workshop gave Ji Dongqing a cigarette, with a smile in his eyes.

"It's not much. I just got the welding and stuff over there!"

"My workshop is idle right now. If you have nothing to do, you can do some work here. I can do heat treatment. Our school used to do a lot of work! Surface treatment and other things can be done..."

Usually there is very little casting work. When the school was originally under the management of the provincial transportation department, there was still some business in the foundry workshop.

After belonging to the Ministry of Education, the foundry rarely received orders.

Moreover, the foundry workshop of Jiaotong University is not large, so it cannot handle large batches of work, and few people visit for large items.

After listening to a few old masters chatting, Ji Dongqing was able to get orders from outside the school, and the casting director tentatively began to communicate.

Ji Dongqing agreed because of his face. After all, they were all teachers, but he knew in his heart that there was little hope.

In his free time, Ji Dongqing unexpectedly received an offline job.

"Dongqing, test this hard-tooth surface reducer and come up with a drawing. We need it here!"

An old customer brought a hard-toothed reducer to Ji Dongqing and removed it from the car, crushing the wooden rafts in the garage.

"How long does it take to get the goods?"

Looking at this practical work, Ji Dongqing felt a little uneasy.

"One week, our company is producing equipment. I want to get a box and find a place to cast the box!"

"Hey... how about I find a place for you to do casting after I draw the map?"

"Okay, as long as the parts are qualified!"

"Don't worry, I'll do a magnetic particle inspection for you here!"

"There's nothing wrong with it. It would be better if you could process all these parts!"

"okay!"

Ji Dongqing found Erfeng and started measuring with tools from the repair shop. Because the size was too big, Ji Dongqing borrowed a one-meter caliper from the school.

"Buzz!"

With the roar of the wind cannon, Ji Dongqing used a pulley to open the cover, and the structure inside gradually became clear.

Erfeng was responsible for the gears and shafts, and Ji Dongqing started measuring the chassis and covers.

In one day, three people summarized all kinds of data.

The next day, Ji Dongqing directly brought the old master from the foundry workshop to the scene.

"That's OK. This is gray cast iron. It's easy to make. You can cast it here, anneal it, and then go to Lao Shen's upstairs to process it! We have a slotting machine for the gear over there and can do it directly. This one has the No. 45 shaft.

alley!"

The entire process of a reducer was completed, and Ji Dongqing was very satisfied.

During the next period of time, Ji Dongqing changed his mind to drawing while practicing.

On the third day, Ji Dongqing not only took out the drawings, but also brought the manufacturer to the workshop of the campus factory.

"Okay, we have a small quantity right now, so we can just cast it here and process the chassis. We have the ability to process the rest of the workpieces!"

The final customer placed the task of casting the chassis here at the campus factory, where Ji Dongqing happened to be interning.

The old master did not skimp on his craftsmanship. He led Ji Dongqing and a group of people to start with the molten iron, mold making, sand casting, and annealing, and it was all done in one day.

When it comes to processing the plane of the box, the metalworking internship happens to be on the planer.

What made Ji Dongqing very speechless was that no matter how much he warned, there was still a problem with the casting.

"How could it be missed?"

Looking at the pool of oil under the base, Ji Dongqing scratched his head.

"It should be that the molten iron has not been cleaned properly. This can only be welded. Dongqing, this is your specialty. Give it a try?"

Looking at the hole in the lower right corner of the box, the casting director was helpless.

Interns are like this, very prone to problems.

Ji Dongqing was also speechless. He has really become a professional mechanic now.

"You two beveled this place, expanded the wound, and then pushed it into the furnace!"

"You two dry the welding rods!"

"I'll go upstairs and process the iron plates!"

Looking at the dull expressions of the classmates in front of him, Ji Dongqing felt even more depressed. Even now, these people don't know how to fix it, or they have no idea in their minds and don't want to have one.

Ji Dongqing simply processed an iron plate, heated it with acetylene, and then pushed out the chassis.

The cast iron welding rod was paired with a high-temperature chassis. With arc splashing, Ji Dongqing smoothed the welding joint, knocked off the flux, welded it a second time, and then pushed the welded workpiece back into the furnace.

"Brother Dongqing, why do you need to use heating?"

A worker in a repair shop handed Ji Dongqing a cigarette with cautious eyes.

"Cast iron is extremely brittle and has a very high carbon content! Although the welding rod is made of the same material as cast iron, the carbon content is still quite different! If it is cooled quickly in the air, the welding joint will be broken if the thick part is not removed.

!”

"Put it in the furnace to cool slowly, allowing the stress to be slowly released, and with the self-adjustment of the crystal, the welding joint will not crack!"

"It turns out there is so much knowledge, I'm convinced!"

Hearing Ji Dongqing's explanation, the worker gave a thumbs up, and the master behind him also nodded.

"Dongqing, do you have any plans to stay in school?"

"Uh... I haven't thought about it yet. I'm taking the postgraduate entrance examination. I'll try my best to pass it! Our school's current threshold is not low!"

Hearing what the master said, Ji Dongqing scratched his head.

Huang De has a guarantee that as long as he can pass the exam, it's basically settled.

"Everyone who comes in is a bunch of theoretical people. Do you really want them to practice it? I dare say that your teachers are not as good as you are now. They are all like shit!"

"Nowadays, there are very few students who are really exploring knowledge and learning ability. They are all here to mess around and make connections! There should be a few good teachers who really teach students something real!"

"Work hard, we will help you apply when you want to stay in school!"

Ji Dongqing's current level has surpassed everyone in the same grade, and several senior teachers are sure of it.

Ji Dongqing couldn't say anything, so he expressed his gratitude first.

The chassis stayed in the furnace for a day and night, and the water was tested again the next day to see if there was any leakage. The machining side started processing again.

Three days later, the chassis processed according to the drawings will be delivered.

***The author has something to say***
Chapter completed!