Factory Internship Report Fan Wen

First is the CNC machine tool. At the beginning, we learned the programming of CNC lathes by the teacher under the guidance of the teacher. Because it is computer operation, we must first learn the language, instructions, etc. that the computer can recognize, so that we can correctly input the commands to control the computer and get what we need. The product. After writing the program, we can watch the simulation, know in advance whether the program meets the requirements and standards, and finally touch the machine tool and input the programmed program into the CNC machine. Everything is automated, and the parts are quickly processed. Our requirements, so CNC machine tools are very modern. It is said that the development and replacement of CNC machine tools is almost in sync with the development of computers.

Then there is the fitter. The fitter is mainly manual, and uses various tools to complete the parts processing, assembly and repair work. The job we have to do is to round the round metal block into a five-pointed star with various enamels. Under the guidance of the teacher, we learned about punching, spiraling, and assembly. The whole process is all manual, so all the work is physical. Everyone felt very simple when the teacher explained, but the actual process was quite different. In general, the process is hard, but the results are gratifying. One day of dripping sweat, I finally got a delicate five-pointed star, watching the bright five-pointed star, the fatigue of the day swept away. Afterwards, I realized that the back of my hand had swollen into a steamed buns, and it was good after a week. The fourth time is casting and welding. The welding is divided into fusion welding, pressure welding and brazing. The purpose of welding is to weld two separate metals together. We are divided into two groups. In the afternoon, we first practice welding. According to the teacher's test guidelines, we welded a weld. First, wear protective clothing, leather gloves, and eye mask. Then, I put the electrode on the metal plate. Ignite, start at the welding place, keep the height of the electrode and metal 2~4mm, about 70~80 degrees perpendicular to the seam; finally, slowly feed the welding rod into the seam, and a weld seam will be released. Tap the iron oxide with a hammer so that the weld is more integrated with the metal. The teacher gave us a rating based on the uniformity of the weld. Finally, I got a b. It feels good. After all, I am a girl. I can't learn much essence in just three hours, so I am very satisfied with my results. Just like the teacher praised, girls are not worse than boys, but do better than boys. This year's Beijing Olympic Games, in which the Beijing Olympic Bird's Nest is melt welded and welded.

In the evening, we started casting, and casting refers to melting metal. The casting process is carried out, and the molten metal is poured into the mold, and after solidification, a molding method for castings of a certain shape and performance is obtained, which is a blank process of the product and the part. Casting is divided into special casting and widely used sand casting. Among them, sand casting has manual molding and machine modeling. We learn to operate by hand molding, and the focus is on how to shape. Using the sand to make the model, we follow the teacher's steps step by step, and make a big model. This is obviously not a child playing with sand, but a very careful thing, because the sand is easily deformed, so when doing Be careful.

Finally, milling, milling is divided into down milling and up milling. It is also a machine tool operation, I think this is the simplest type of work. In the evening, we also saw the CNC technology. The CNC wire cutting technology is to use the programmed program to cut various small workpieces by wire discharge. The work we have to do is to design the workpiece and place the workpiece. Other things are handed over to the computer. The accuracy is high, but the speed is relatively slow. I didn't know how many elaborate parts and patterns were produced before. I saw the products produced by CNC technology, which is really open to the eye! It turns out that the level of human production using machines is so high and exciting! This also makes me think in my heart, such advanced equipment, such superior learning conditions, I must make full use of this and reserve a certain amount of energy for myself!

For the first time in my life, I have a feeling of "learning to use it." I feel very fulfilled in my heart. I also truly understand that truth must be tested by practice, and I don't try it myself. There are many things that are not in the book. Only in practice can you get it. The discussion on paper will only lead people into the wrong zone, and practice is the teacher forever. The phrase "painful and happy" is used to describe this metalworking internship. It is not only an experience, it also brings us not only experience, but also cultivates our hard-working spirit and rigorous and serious style. "The paper has come to the end and feels shallow.