[Boutique] Metalworking Internship Report

This article directory 1 metalworking internship report 2 metalworking internship report 3 metalworking internship report first: metalworking internship report

Training location: Metalworking basic training room

Training Objective: To cultivate and improve our practice in order to complete the task of education and teaching

The ability to operate enables students to connect theory with practice and apply what they have learned so that students can have a complete emotional understanding of the mechanical manufacturing process during the operation of the gold tool body, learn the basic knowledge in detail, and master the basic skills correctly. In order to learn the relevant follow-up courses and to engage in relevant technical work in the future, lay a certain practical foundation. At the same time, we enhance our awareness of acquiring knowledge in practice and achieve the goal of combining teaching with practice. Safety matters: 1. The layout of the equipment should be reasonable.

2. The workpiece should be placed neatly and easy to work.

3. Organize the storage tools and keep them clean and tidy. 4. Wear protective equipment when working. 5. Tools must be firm and reliable.

6. When using the machine, you must follow the safe operating procedures.

Basic knowledge of the fitter: 1. The fitter's workpiece must be securely clamped to the middle of the vise jaw.

2. When using the saw blade, the tension of the saw blade should not be too large or too small, and the saw blade should be attached to the root of the pin and the saw tooth forward.

3. When sawing, the force should be even, straight and straight, do not swing up and down, left or right, no heavy pressure or strong twist to prevent breaking the saw blade. When the sawn object is about to be sawn, the force should not be too large. It is necessary to prevent the saw from falling and stabbing the toe. At the same time, the sawing speed should be slowed down to prevent the saw bow from swinging and breaking the saw blade.

4. The file selection should be appropriate. Do not use the file and scraper without wooden handle, and the wooden handle should be securely fastened. Do not use a sickle to strike or smash to prevent breakage. Scythes must not be stacked. 5. The swarf should be removed with a brush and should not be removed by hand or blown off with the mouth.

6. When using taps and dies to tap and thread, pay attention to the correct buckle and do not skew. After the buckle, the two hands are evenly applied, and it is necessary to repeatedly retreat a quarter turn to break the chips. In order to prevent chip clogging, damage the workpiece and the thread of the thread cutter.

7. End of work, cleaning workers, clamps, measuring tools, cleaning vise and workbench.

Common equipment for fitters: 1. Clamp table 2. Bench vise 3. Vernier caliper 4. Hand saw 5. Scythe 6. Drilling 7. Scribe 8. Arrangement 9. Steel ruler

The basic operating skills of the fitter: 1. Marking 2. Boring 3. Sawing 4. Boring 5. Drilling 6. Reaming 7. Tapping

Training content: 1. Production of duckbill hammer

2. Hex nut processing method and steps

Training process: Two weeks of metalworking basic skills training is intense and orderly, we are old

Under the leadership of the division, the basic training of metalworking began in the training room. Before the internship began, the teacher carefully told us about important safety issues and precautions. This is very important to have a general understanding of the types of work we want to intern. And know. In the first week of training, what we need to complete is a duckbill hammer. The teacher first sent us the tools, then gave us a piece of iron, let us familiarize with the tools and operations, and lay the foundation for the work. The first step: scribing. Use a knife to draw a certain length, then use a saw to saw off the excess. Step 2: Find the datum because we have to draw a line. First find a face that is slightly better to find, then use a large trowel to smash the surface color, and then use a trowel to flatten the face. We will follow the shackles first, and the elbows, handles, and knives must be in a straight line when they are squatting. The third step: scribing. Because it is necessary to draw a lot of articles, it will be more troublesome. It may not be cleared when it is drawn, so you can draw a few more. The fourth step: sawing. We have to slant a little while sawing, and be careful not to saw the parts you need, which can be cumbersome. The fifth step: Pingping. After sawing, the general shape is also out, and then the faces are flattened. First, use a big trowel to smash it. After the smashing is almost finished, measure it with a square ruler. If the surface is flat, if it is not flat, then according to the specific situation. Adjust the level, and also pay attention to the length of the size, can not be too much. Step 6: After completing the shape of the whole hammer, I used the drilling machine to drill a hole for the hammer. Because the drilling machine is old, the hole after drilling is a little inclined. Even though it is still very good, the duckbill hammer is very good. finished.

In the second week of training, we have to complete a hex nut, with the previous experience of the production of the duckbill hammer. It is relatively easy to complete the hex nut. However, it has encountered many new problems. Material: According to the drawings, we took a similar material. 2. Scribing: Use a ruler to draw two vertical intersecting and longest straight lines on a circular steel plane to obtain the center of the circle, and then use the steel gauge to the center of the radius to R12mm. The circle. Use a straight point to draw a semicircle with a long radius at the intersection of the far and the straight line, and similarly draw the intersection point on the circle of the semicircle at the other end to obtain a hexagon. 3. Select a flat surface that is flat and perpendicular to the foot line to roughen, meet the requirements of the flatness of the flat surface and mark it as the reference surface A. 4. Based on the A surface, the rough surface and the fine surface are opposite. Meet dimensional tolerances, parallelism and surface roughness requirements. 5, according to the pattern requirements for all the accuracy of the re-examination, and do the necessary trimming and boring, and finally the sharp edges are evenly chamfered. 6. Drilling: Drill a round hole with a radius of R12mm at the center of the nut with a drill press. 7. Tapping: tapping the hole with a tap.

At the end of the training, we also contacted the electric welding. In the electric welding training, we learned the essence of electric welding, the composition of the electric welding machine and the composition of the welding rod; learned the type of welding rod and how to operate the welding machine. Electric welding is a very important part of our participation in practical activities. Under the leadership of the teacher, we have mastered certain skills through certain hands-on practice. 1. Understand common welding methods, equipment, materials, processes and application examples. 2. Understand common welding defects and welding deformation. 3. Understand the basic principles of welding, welding process, metal welding conditions and welding sleeves. 4. Understand the safety technology of electric welding. 5. Initially grasp the scope of application of electric welding.

Experience and experience: In this training, I have gained a lot. First of all, the first time I got the parts I have processed, I have a certain sense of accomplishment. Secondly, it has a preliminary understanding of some basic mechanical equipment, knows some basic operations, and can process some of the simplest workpieces. Furthermore, there is a preliminary understanding of some of the basic requirements and basic regulations in the machining plant. Finally, I have accumulated some basic work experience and practical experience, have a certain understanding of the internship, and have a guiding help to improve my hands-on ability and practical operation ability. We have felt the importance of hands-on ability in the classroom for a long time. We can't complete the actual work only by thinking and figuring in the brain. Only when we have a scientific knowledge system, we are proficient in practical ability, including mechanical operation and experience. Continuous accumulation can make knowledge flexible and effective in practical work. China's current education system makes it difficult for college students to enter the university through the joint entrance examination. I feel that every training is very meaningful to me. It is very real. They have added a wonderful touch to my college life. Let me be closer to the life of skilled workers, let me grow more professional knowledge, let I recognize my strengths and weaknesses.

Part 2: Metalworking Internship Report

In May, a three-week metalworking internship was held at the campus of the South Campus. During the period, we contacted 7 types of work such as sawing, boring, boring, drilling, turning, milling and planing, and also briefly understood the machining technology of CNC machine tools. Every day, everyone has to learn a new technology, and in the 6-hour internship time, complete the process of knowing nothing about each type of work to produce a finished product. Under the patient's patience and meticulous cooperation, we did not have an injury accident, basically met the expected internship requirements, and successfully completed a three-week cognitive internship.

Seriously, at first I felt that the three weeks were really long, but the time was rushing. I flew in three blinks. Now I think about the three-week trip to the blue collar. I tasted it: acidity - strict commuting and working system. Tired - hand-held sickle keeps licking; spicy - high-speed cutting performance; more sweet - hand-made beautiful pieces.

When we went to the South Campus, the first thing we learned was the fitter. The fitter was a manual-based processing method with high labor intensity, low production efficiency, and high operational technical requirements. However, the tools used by the fitter are simple, flexible and adaptable, and can perform some inconvenient or difficult work. Therefore, in some machining and repair work, the fitter is still an indispensable important work.

It was a little excited to go into the fitter processing workshop for the first time. On the first day, the teacher introduced us to the main equipment of the fitter. We realized the clamp table, the vise, the scribing platform, the drilling machine, and various measuring tools and marking tools. After knowing this, the teacher began to introduce the use of saws and saws. After the professor finished, we assigned us a job and asked us to cut a piece of 1 mm thick piece. This is our job. I heard this and suddenly stopped. 1MM? How can it be sawn out? The teacher said, if not how to test our true skills? When the first sawing, because the operation is not skilled, I saw the sawing road, broken, and practiced After two times, I mastered the essentials of the operation, and saw a satisfactory sheet and finished the homework!

After eating this loss, I also learned it. In the later homework, I carefully calculated it. I carefully followed the steps of the teacher and carefully and carefully. After a few days of practice, the efficiency has also improved a lot, the craftsmanship has become more and more precise, and the aesthetic coefficient has also increased. But in a few days, although many students have blistering on their hands, they are sore, but they see For the first time in my life, I processed the finished products in the factory. Everyone couldn’t help but feel a sense of accomplishment. We were so happy and happy.

After the internship is completed, the next is a machining internship. We are no longer just sitting in the classroom as steady as we used to, watching the teacher's plan and portrayal, thinking hard: What is a lathe? Now it's a big difference, when the images on those textbooks When the machine depicted in the teacher’s class is really in front of us, we are extremely excited. Seeing those guys who have been thinking hard in their minds but can’t see their true face, we are very happy and think of us again. Not only can we see them, we can touch them, but we will also learn how to manipulate them. In addition, we will learn how to operate a meta-controlled machine tool. The joy in our hearts is even more difficult to say.

Now the teacher teaches us how to operate the lathe, the bed, the milling machine. Through the study, we have all made our own crafts and completed the homework assigned by the teacher. In the machine tool that was learned, the highest risk factor was the lathe, and the turning tool was spinning at a rapid speed, but we were all careful and carefully followed the teacher's instructions and safe operating procedures. In one day, the students must first master the essentials of driving the lathe, and then follow the drawings to request the step shaft and other operations, but we learned very easily. After several exercises, we have already got the crafts that meet the requirements.

Time is like running water, three weeks is fleeting, and the three-week metalworking internship gives me the experience:

1 Through this internship, we learned about the production methods and processes of the modern machinery manufacturing industry. Familiar with the main forming methods and main mechanical processing methods of engineering materials and the working principle and typical structure of the main equipment used, the use of measuring clamps and safe operation technology. Understand the knowledge of mechanical manufacturing processes and the application of new processes, new technologies and new equipment in machinery manufacturing.

2 It has preliminary independent operation skills in the main forming and processing methods of engineering materials and main mechanical processing methods.

3 Develop, enhance and strengthen our engineering practice, innovation and innovation capabilities in understanding, familiarizing with and mastering certain engineering basics and operational skills.

4 This internship, let us understand that we must be careful and meticulous in doing things, and we must not be sloppy. At the same time, we have cultivated our strong and unyielding essence, and will not give up the perseverance in the last second!

5 Cultivate and exercise labor perspectives, quality and economic concepts, strengthen the observance of labor discipline, observe safety technology rules and protect the national property, and improve our overall comprehensive quality.

6 Throughout the internship process, the teacher has strict requirements on our discipline, and has established student internship rules. At the same time, it has strengthened the requirements for cleaning the machine tool field and complying with the safety operation rules of various types of work. Promotion.

Soon we will step into the society and face employment. The employment unit will not tell us the work to be done in a nuanced manner like a teacher. More is that we need to observe and learn by ourselves. Without this ability, it will be difficult to meet the challenges of the future. With the rapid development of science and the wide application of new technologies, there will be many areas that we have never touched before. Only dare to try to make breakthroughs and innovations. Just like the car workers we are exposed to, although it is very dangerous, it requires every student to operate and to make finished products, thus exercising the courage to dare to try. The three-week metalworking experience brought us not only the operational skills we have come into contact with, but also the ability to exercise through several types of work, and more of us need each of us after the internship. According to my own situation, I will feel, rethink, be self-satisfied, and gain something, so that this internship has achieved his true purpose.

Part 3: Metalworking Internship Report

First, the purpose of the internship:

Understand the basic knowledge of welding, casting, heat treatment, forging and basic skills, and enhance your understanding of all aspects of knowledge.

Second, the basic requirements for internship:

1. Master the basic knowledge of welding and entry operation; 2. Master the basic knowledge of casting and understand basic skills; 3. Master the basic knowledge of heat treatment and understand basic skills; 4. Master the basic knowledge of forging and understand basic skills;

Third, the internship content: welding

Content: A preliminary understanding of the basics of soldering by watching video walkthroughs and hands-on exercises.

Casting

Content: Understand the basics of casting by watching video walkthroughs and teacher explanations and factory visits. Heat treatment

Content: Understand the basics of heat treatment by watching film exercises and teacher explanations and factory visits.

Forging

Content: Understand the basics of heat treatment by watching video exercises and teacher explanations and factory visits

Fourth, internship experience:

Time flies, and the week is fleeting. This week is our internship week, which is mainly about learning about welding, casting, heat treatment and forging. During this week, through internships, we learned a lot about this knowledge. Although these are not our professional knowledge, as the saying goes, "Live to the old, learn to be old", no one will be free to know more. Knowledge! This way, not only enhances our knowledge, but also exercises our hands-on ability, why not do it!

welding

The first stage was welding. At the beginning, the teacher first let us watch the film, and while helping us explain the introductory knowledge of welding, let us know some necessary knowledge of welding through the film and his explanation. The students also took notes while taking it very seriously, lest they go wrong when they got started. As long as people are serious, no matter what they do, time will go very fast. Therefore, the afternoon will pass quickly. The first day is nothing, let us watch the film, listen to it, take notes. . Due to the large number of internship classes, we were assigned to the internship in the evening the next day. The content is similar. It is mainly theoretical knowledge. What is the theory of the theory? But the second day is also the content. Watch the film and listen to the teacher. The third day arrived, and finally I can get started. Although it is scary to look at the welding, it is actually not the case. We first looked at the teacher and gave us a practical operation. Then we went to our workbench according to the regulations and started welding. Getting started. Of course, the male classmates were the main force, and the female students were a little scared at first, but when they came, they managed to complete their homework very smoothly. To be honest, our internship is also a feature of the school. It is important to understand and understand. It is not really necessary to train us into a welder, so this welding internship has come to an end.

Casting

Casting is a relatively early metal heat processing technology mastered by mankind. It is a method of melting metal, making a mold, pouring molten metal into a mold, and solidifying to obtain a shape, size and performance of a metal part. . In the same way, we have a preliminary understanding and understanding of casting by watching the film. We are also very interested in the cast items in the film. The teacher explained to us the general process of casting the mold according to the model. Since some processes are not suitable for students to actually operate in this internship factory, we did not carry out the actual operation, just in the Under the guidance of the teacher, I got to know the tools that I needed during the casting process, such as stoves, hoes, sandblasting boards, etc., and also visited a few pieces of casting machinery in the factory. It really opened our eyes, I really couldn’t think of it. The big items that look so practical and ingenious are like this.

Heat treatment

Heat treatment is a metal thermal processing process in which a metal material is heated, insulated, and cooled in a certain medium to control its properties by changing the metallographic structure of the surface or interior of the material. Metal heat treatment is one of the important processes in mechanical manufacturing. Compared with other processing methods, heat treatment generally does not change the shape and overall chemical composition of the workpiece, but changes the microstructure inside the workpiece or changes the chemical composition of the surface of the workpiece. , to give or improve the performance of the workpiece. It is characterized by improved intrinsic quality of the workpiece, which is generally not visible to the naked eye. For the internship of heat treatment, this is the content of our last two days. This time we came to the factory for an internship. The main thing is to listen to the teacher and watch the tools used in the heat treatment. The machinery of this factory is also quite a lot. It was said that it used to be a factory that produced this kind of object. Now it was bought by the school and used for internships. Of course, our engineering school must have a factory. Through the teacher's careful explanation, we learned what these things are for. Then, the teacher also introduced us to the basic principles and processes of heat treatment. If it is not our professional mismatch, we may really try this. It’s gone.

Forging

Forging is a combination of forging and stamping. It is a forming process of a part of a desired shape and size by using a hammer head, an anvil, a punch or a die of a forging machine to apply pressure to a blank by a die to plastically deform it. method. In the forging process, the billet has obvious plastic deformation and a large amount of plastic flow. In the stamping process, the billet is mainly formed by changing the spatial position of each part, and there is no plastic flow of a large distance inside. Forging is mainly used for processing metal parts, and can also be used to process certain non-metals, such as engineering plastics, rubber, ceramic blanks, brick blanks and composite materials. Forging and metallurgy in the rolling and drawing industries are all plastic processing, or pressure processing, but forging is mainly used to produce metal parts, while rolling, drawing, etc. are mainly used to produce sheets, strips, pipes, General purpose metal materials such as profiles and wires. These professional knowledge, the teacher said in great detail, we also wrote down, although not the profession, but understand it. In the same way, the teacher introduced us to the tools and processes of forging, and the students will understand it.

This metalworking internship is over. The week is short, but we have learned and recognized a lot of things. It has broadened our horizons, exercised our hands-on ability, and also activated our thinking, which is also a benefit. Shallow. There are not many such opportunities. After all, we are not professional in learning, so we should cherish some of the knowledge we have learned. I think, maybe in the future life, we will always have the opportunity to use some of these knowledge, today's knowledge is tomorrow's wealth.