Summary of practical training in metalwork a
Two-week goldwork internship in the metal reverberation came to an end, in general this two-week internship is an interesting and will certainly affect my future learning and work of the important experience. I don't think there will be another opportunity like this in the years to come to experience the methods commonly used in industry today in such a short period of time; and I'm afraid that I won't be lucky enough to experience how everything around me is actually made.
"Gold internship" is a practical technical foundation course, is a higher education engineering students to learn the basic process of mechanical manufacturing methods and technology, to complete the basic engineering training of the important mandatory courses. It not only allows us to obtain the basic knowledge of mechanical manufacturing, understand the general operation of mechanical manufacturing, improve their operating skills and hands-on ability, but also strengthen the theory and practice of exercise, improve the practical ability of engineering, and cultivate the quality of engineering. This is a good opportunity for us to learn and exercise! Through this short but full of internship I know a lot
In industrial production, safety should be put in the first place, is crucial! This is the first advice that every teacher gives us. In the subject of industrial safety, we were then assigned to take turns to watch a video on practical safety. The video showed in detail the requirements and safe handling of many types of work, such as welding, heat treatment and so on. We were shocked by the complexity of the machines and the number of accidents that had occurred due to non-compliance with the requirements of the machines. We were shocked by the accidents that happened when we didn't operate the machines according to the requirements. An unintentional action or a small negligence can lead to mechanical accidents and even personal safety accidents. Before a safety accident occurs, many people do not pay attention to safety education, thinking it is too tedious and boring. Once an accident occurs, hindsight is a lot.
After watching the video, we were in the workshop, listening to the teacher to explain the knowledge about industrial safety. Looking at the information sent down, I realized the importance of industrial safety, industrial safety knowledge is the necessary knowledge of industrial senior management and developers, for drafting or an enterprise safety regulations, reduce industrial pollution, fire and explosion prevention, etc. is very important knowledge, if you do not master, not only will be reprimanded for ignorance, and sometimes there will be major accidents. So safety always comes first, and we keep it y in mind and do things seriously, seriously. I'm glad I took it seriously enough so I made it through the two weeks of my internship safely!
I. Purpose of internship
To understand the role of each type of work and the use of methods, exercise their hands-on ability, the theoretical knowledge will be applied to practice, to further consolidate and deepen the theoretical knowledge that has been learned, to improve the comprehensive use of the knowledge learned to shorten the distance from a college student to a staff member of the thought between the distance between the further to society to lay a solid foundation. The foundation for the future further to society.
Two, internship content
1, welding internship
Have seen countless times in the construction site flashes of electric sparks, I know that is the welding, this time, we also want to contact many students fear of welding, I thought it would be very easy to operate, but the fact that it is not so, more difficult than I thought. Today, the teacher gave us a detailed introduction to the welding operation and some precautions, welding produced by the odor and blinding light is harmful to the human body, we should know how to protect themselves when operating, wear overalls, put on a mask. I learned from the teacher's explanation: the angle of the welding rod is generally between seventy and eighty, the speed of transporting the rod, of course, the requirements of uniform speed, however, in practice, we are often not fast or slow, it is difficult to maintain uniform speed, so the results of welding out is not very smooth, there are places to stay for a short period of time is of course not well welded, there are cracks, stay for a long time in the place, there is often a problem with the welded through the fault, there is a Loopholes; the height of the welding rod is required to be maintained at two to four millimeters, however, in their own just started is also full of loopholes, because in the transportation of the rod at the same time, the rod in the continuous shortening, and therefore have to constantly change the original height of the electrode, which is a little difficult to control, high is easy to take off the arc, while the low is easy to stick. Each student tried 3 welding rods, look at their own welding out of the strange shapes, the heart that anxious ah, but fortunately in their own many times after welding, slowly began to find the feel, in the final examination with good results through. Through this welding, we have mastered the knowledge of spot welding, but in order to make it to the standard of professional workers, we need to practice over and over again, practice makes perfect. Although welding is very tiring and dangerous, we have welded with our own hands and experienced it, and we will have the opportunity to practice it again in the future.
2, heat treatment internship
Heat treatment is the metal material in a certain medium heating, insulation, cooling, by changing the material surface or internal metallurgical organization, to control the performance of a metal thermal processing technology.
In order to make the metal workpiece with the required mechanical properties, physical properties and chemical properties, in addition to a reasonable choice of materials and a variety of molding process, heat treatment process is often essential. Steel is the most widely used materials in the mechanical industry, steel microstructure complex, can be controlled by heat treatment, so the heat treatment of steel is the main content of metal heat treatment. In addition, aluminum, copper, magnesium, titanium and its alloys can also be heat treatment to change its mechanical, physical and chemical properties, in order to obtain different performance.
3, turning practice
Turning allows us to simply understand the working principle of the lathe and its mode of operation; learn the correct way to use the lathe, and can correctly use a workpiece processing; know the meaning of the lathe model, proficient in turning processing operations.
Turning safety knowledge: work wear overalls, girls wear a work cap, and long hair pulled into the cap. Workpiece and turning tool need to be clamped firmly, so as to avoid workpiece and turning tool flying out of injury. When the workpiece is rotating, it is not allowed to measure the workpiece. After the workpiece is installed, the three-jawed wrench must be removed, so as to avoid inattention to start the lathe, so as not to fly out of the wrench hurt.
Beginning to listen to the master arrangement and operation process familiar with the operation of the lathe, and later practice car file handle; after a period of time and practice how to car thread, and finally independent processing hammer handle. And explained to us the role of each handle, a preliminary demonstration of the operation method, and processed a part of it, and then let us start processing. Turning requires a high degree of precision, and if you miss by a fraction of a second, you will miss by a thousand miles. If the workpiece is too big, you can continue to turn it to the right size, but if it is too small, the whole workpiece will be scrapped and you have to start all over again. Unfortunately, this happened to our group once, which delayed our work progress greatly. Finally, after a lot of hard work, we were able to finish our workpiece: the hammer and the nut.
Turning experience: the lathe is through the various handles to operate, the success of the lathe through the completion of the workpiece of the joy of this success can only be felt by personally participating in the internship as a college student we have experienced more than a decade of theoretical learning, more than once told that there is a gap between theoretical knowledge and practice, but we have not been serious about the words, and there is no opportunity to verify the actual gap in the words. How much is the actual gap. Theory to theory, practice is the real purpose, in order to practice the real skills. This stage of the internship to my feelings or must be hands-on operation, do not know how to operate, do not know where there is a mistake, do not know how to correct after the wrong hands. Practice produces true knowledge, practice makes people progress faster, more harvest, adapt to the social ability is stronger.
4, CNC internship
It is through programming to control the lathe processing. The teacher also gave us a simple introduction on the blackboard, and give examples. A step by step write. The most annoying thing for us is the tool setting, a little carelessness will be the x-axis and z-axis reversed. With the help of our classmates and teachers, we learned how to set the tool. Through the operation and programming of CNC lathe, I y felt the convenience, accuracy and speed of digital control, as long as the correct program is entered, the lathe will perform the corresponding operation. We learned new knowledge together and helped each other to answer questions that we didn't know or understand. Afterwards, the teacher let us go to the real machine tool to demonstrate those programs on the machine tool. We finally realized that there is a big difference between simulation and the real thing. Simulation can make mistakes and then correct them, but when it comes to the real machine tool, one bump will make the material waste. Our calculation is also very important, the error can not be more than 1 millimeter to go. Everyone has the opportunity to practice with their own hands, and there is a big difference between doing it yourself and watching someone else do it. When I first started the machine, I was at a loss as to what to do. I didn't know what to do, what to do first and what to do later. Luckily, with the guidance of my teacher, I was able to make a finished product. Although it is not so perfect, but that is their own personal do or heart feel very happy.
5, pliers practice
In the pliers training, we know the main content of the pliers for scraping, drilling, tapping the wire, sawing, filing, assembly, scribing; understanding of the file's structure, classification, selection, filing posture, filing methods and quality testing. First of all, we must hold the file correctly, file the plane to keep the file straight movement is the key to filing, filing force has a horizontal thrust and vertical pressure of two kinds. When the file is pushed forward, the pressure of the front hand gradually decreases after the pressure of the back hand is small, the file is pushed to the middle of the position, the pressure of both hands is the same, continue to push the file, the pressure of the front hand gradually decreases after the pressure increases. No pressure is applied when the file returns. This way we file is also relatively simple. At the same time, I also know the clamping safety techniques for: 1, clamp table should be placed in a place that is convenient for work and light; drill press and grinding wheel should generally be placed on the edge of the site to ensure safety. 2, the use of machine tools, tools (such as drilling machines, grinding wheels, hand drills, etc.), should be checked frequently, found that the damage is not allowed to use, and need to be repaired and then use it again. 3, when the bench vise clamping tools, may not be used with a hammer hammering bench vise handles or steel pipe to apply Clamping force. Then it is scraping, grinding, drilling, reaming, tapping and so on. Although not very standard, but it is the crystallization of our sweat, is the result of our two days of struggle.
The practical training of pliers is honestly very boring, may be dry a morning but are in the back and forth with an action, but also have the strength, but also to do, that is, holding a file in the hand on the workpiece back and forth filing, filing to the midday, the whole person's hands are sore and aching, the legs also stood some stiffness, however, every time I am tired, but I can see the teacher in the side guidance, and personal demonstration, he is also Head full of sweat, gasping for breath, see this every time to give me motivation. A few days later, looking at the results of their own processing, we would like to say thank you to the teacher who guided us.
6, casting internship
The purpose of the experiment is to understand the process of casting production process, characteristics and application, familiar with the sand casting process and the use of tools. Recognize the sand and composition, master the sand casting method of casting simple parts. Steps of the internship: Simply put, making a model, making a mold core, making a sand mold, making a sand core, close the box, tie air holes, casting, cooling, sand drop, check.
Listening to the students who have done it, it is not an easy job! To make those shapeless sand and mud into what we want is to be a good use of our brains, it requires not only our physical strength, but also our patience, to not be sloppy!
Casting and molding can be said to be a total throwback to playing with mud and sand as a child. But this time, in addition to the impulse of the heart, more need to be considered careful plus patience, there is also is a child's hand, and now use the sand box, pounding sand hammer, autumn leaf sand hook just. It seems to be so simple steps. However, if I want to make a mold that will amaze everyone, I can't do it without tinkering with it over and over again. Fortunately, there are ready-made molds, you can quickly proceed to the next step of making sand molds, pounding sand looks simple but very tired ah, can not be lazy and pounded not solid or add more sand, which will play a key role in the later casting of the parts. Remember that sometimes the pen can make flowers but sometimes it is also because of your little repair let you give up! A morning although we are tired to the back pain, but see the results of our hard work, the heart thought actually that's nothing! Just even we will not believe their own eyes, so a bunch of sand in our careful processing can become so neat and beautiful .
7, forging internship
Forging is under the action of external forces to produce plastic deformation of metal materials, so as to obtain a certain shape and size of the blank or parts of the processing method. It is an important processing method in machinery manufacturing. Forging includes forging and stamping. Forging can be further divided into two ways: free forging and model forging. Free forging can also be divided into two kinds of hand forging and machine forging.
(1)Hand forging tools
1)Support tools: such as ram's horn anvil, spherical anvil (also known as mushroom anvil), core anvil and so on.
2)Striking tools: such as a variety of sledgehammer and hand hammer.
3)Molding tools: such as a variety of punches, flat hammers, gourds, nests and so on.
4)Clamping tools: various shapes of pliers.
5)Cutting tools: various burins and cutters.
6)Gauge: straightedge, inside and outside calipers, etc..
(2), hammer on the free forging tools
1)Clamping tools: such as round pliers, square pliers, groove pliers, holding pliers, pointed pliers, special type pliers.
2) cutting tools: such as cutter (also known as chopping knife), nibbling knife, half-round cutter.
3) deformation tools: such as clamps, grooves, pressurized iron, punches, mandrels, pressure stick, leakage disk, etc..
4)Gauges: such as straightedge, internal and external calipers.
5) lifting tools: such as lifting pliers, forks, etc..
Three, internship thoughts
We spent our internship life in the internship in a full, we learn the knowledge is not a lot, but through this time so that we understand that we need to actually learn to master the skills of many, many. The society needs talents, the society needs is capable of talents. Our new century of university only more to participate in the practice, in order to ensure that in the future social competition has its own position. We should college students to participate more in such internship activities, it seems that these days are more than what we learn in the classroom.
We are the people who are about to enter the society, what is more needed is the spirit of hard work and endurance, when faced with difficulties to be able to stick to the end, believe that they are competent. No matter how much difficulty we will encounter in the future we will learn to overcome, because we see in each other the advantages of learning and vigor. Therefore, I hope that children now should participate in more such courses, not only the body to get exercise but also help to grow into a do-it-yourself food, encounter setbacks do not retreat not afraid of hard work and useful talents.
Summary of the goldwork training two
Training place: goldwork basic skills training room
Training purpose: to cooperate with the completion of the education and teaching tasks, to train and improve our practical ability to make the students theory link to practice, learning to use, so that the students in the goldwork in the specific operation of the process of mechanical manufacturing process has a complete perceptual understanding of the detailed understanding of the basics of their knowledge. Correctly grasp the basic skills. For the study of relevant follow-up courses and future engaged in related technical work, lay a certain practical foundation. At the same time to enhance our awareness of the acquisition of knowledge in practice, to achieve the purpose of combining teaching and practice.
Safety matters: 1. The layout of the equipment should be reasonable.
2. Workpieces should be neatly arranged to facilitate work.
3. Organize and store the tools, do the field should always keep clean.
4. Work must wear good protective equipment.
5. Tools must be firm and reliable.
6. With the machine, must comply with the safety regulations.
The basic knowledge of the clamp:1. The clamp workpiece must be firmly clamped in the middle of the vise jaws.
2. When using the saw bow, the tension of the saw blade must not be too great or too small, and the saw blade is mounted on the root of the hanging pin, the saw teeth forward.
3. When sawing, the force should be even, straight, not swinging up and down, not heavy pressure or strong twist to prevent breaking the saw blade. When the sawed object is about to be sawed off, the force should not be too great, to prevent the sawed object down to injure the toes, while sawing speed should be slowed down to prevent the saw bow swing broken saw blade.
4. File selection should be appropriate, do not use files and scrapers without wooden handles, and wooden handles should be secure. Do not use the file to knock or pry objects, in order to prevent breakage. Files should not be stacked.
5. File shavings should be removed in the direction of the brush, and should not be removed by hand or blown off with the mouth.
6. When using taps and plate teeth to tap and set threads, pay attention to the correct start buckle, do not skew. After starting the buckle, both hands force evenly, often backward quarter turn to break the chip. In order to prevent the chip clogging, damage to the workpiece and threading tool teeth.
7. The end of the work, clean up the work, clamps, gauges, clean vise and workbench. Clamping equipment: 1. clamp table 2. vise 3. vernier calipers 4. hand saw
5. file 6. drilling machine 7. scribing needle 8. scribing return 9. steel ruler
The basic operating skills of clamping: 1. scribing 2. burin 3. sawing
4. filing 5. drilling 6. reaming 7. tapping thread
Training: 1. duckbill hammer head production < /p>2. /p>
2. hexagonal nut machining methods and steps
Training process: two weeks of basic metalworking training in an intense and orderly manner, we began in the training room under the leadership of the teacher of the basic skills of metalworking practical training. Before the start of the internship, the teacher seriously told us the important safety issues and precautions, which is very important for us to have a general understanding of the types of work to be practiced and awareness. In the first week of training, we had to complete a duckbill hammer. The teacher first issued us the tools, and then gave us a piece of iron, so that we can familiarize ourselves with the tools and operation, and lay a foundation for the work afterwards. Step 1: Scribe the line. Use a knife to mark out a certain length, then use a saw to cut off the excess. Step 2: Find the datum plane, as we are going to use this to scribe the line. Find a slightly better surface, then file off any color or anything else on the surface with a large file, and then use the file to flatten the surface. We start with the file, elbow, handle, file in the file must be a straight line, so that the file has the effect. The third step: the line. Because there are many lines to be drawn, it will be more troublesome, and it may not be too clear when drawing, so you can draw a few more lines. Step 4: sawing. When sawing we have to be a little slanted, and be careful never to saw in the part that needs it, it will be very troublesome. Step 5: File. After sawing the general shape also came out, and then the various surfaces are filed flat, first with a large file file, filed almost after measuring with a ruler, whether the surface is flat, if not flat then adjusted according to the specific conditions to do flat, and also pay attention to the size of the length, can not be filed too much. Step 6: in the shape of the entire hammer is completed, I used the drill press to drill a hole for the hammer, due to the drill press is relatively old, resulting in drilling out after the hole is a bit tilted. Despite this, I was able to finish the duckbill hammer very well.
In the second week of practical training, we have to complete a hexagonal nut, with the previous duckbill hammer production experience. Completion of the hexagonal nut is relatively easy. But also encountered a lot of new problems. 1, material: according to the drawing requirements to take a similar material. 2, scribing: with a ruler in a plane of round steel, two perpendicular intersection and the longest straight line, so as to obtain the center of the circle, and then use a steel gauge to the center of the circle to the radius of R12 mm circle. With a rigid gauge at the intersection of the far and straight line to take the radius of the longest point of the semicircle, similarly at the other end of the semicircle connected to the intersection of the circle, so as to obtain the hexagonal shape. 3, choose the flatter and perpendicular to the foot of the line of the end of the roughness of the roughness of the surface of the flatness of the requirements and make a good mark as a reference surface A. 4, A surface as the basis for the rough filing, filing, filing the opposite side of the surface to achieve the dimensional tolerances, parallelism and surface roughness requirements. 5, according to the drawing requirements for all the accuracy review, and do the necessary trimming file, and finally the sharp edges of the uniform to chamfering. 6. drilling: drilling with a drill press in the center of the nut to drill a radius of R12mm of the round hole. 7. tapping: tapping the hole with a tap.
Near the end of the practical training, we also came into contact with welding. In welding practical training, we understand the essence of welding, the composition of the welding machine and the composition of the welding rod; learned to choose the type of welding rod and how to operate the welding machine. Welding is a very important part of our participation in practical activities, under the leadership of the teacher through certain hands-on practice, mastered certain skills, 1. Understand the common welding methods, equipment used, materials, processes and application examples. 2. Understand the common welding defects and welding deformation. 3. 3. Understand the basic principles of electric welding, the welding process, the conditions of metal welding and electric welding applications. 4. Understand the safety technology of electric welding. 5. Preliminary grasp of the scope of application of electric welding. 6.
The experience and experience: in this practical training, I gained a lot. First of all, the first time I got my own processed parts, with a certain sense of accomplishment. Secondly, there is a preliminary understanding of some basic mechanical equipment, know some basic operations, and can process some of the simplest workpiece. Furthermore, I have a preliminary understanding of some basic requirements and basic regulations in the machining factory. Finally, accumulated some basic work experience and practical experience, the internship has a certain understanding of their own hands-on ability and practical ability to improve a guided to help. Long in the classroom we feel the importance of hands-on ability, only with the brain thinking, catching is not able to complete the actual work, only in the possession of a scientific knowledge system at the same time, skillful mastery of the actual ability, including the operation of the machinery and the continuous accumulation of experience, in order to put the knowledge of the flexible and effective application of the actual work. The current education system in China makes the hands-on practical ability of college students who enter the university through the college entrance examination relatively weak. I think every practical training is very meaningful and real for myself. They add a wonderful part to my college life. Let me closer to the life of skilled workers, let me grow more professional knowledge, let me realize my own strengths and weaknesses.
Goldworker training summary of three
One, the purpose of training
Master the clamp operation skills, processing technology; according to the drawing requirements to complete the processing of the hand hammer workpiece processing tasks; to improve the students' hands-on ability to lay the foundation for employment.
Second, the content of practical training
1, the characteristics of clamp processing
(1) manual operation (2) cold processing (3) flexible processing, easy to operate
2, the basic operation of the clamp
Drawing: the purpose of drawing the line, the tools and gauges used, the preparation of drawing the line before the selection of benchmarks, the drawing of the plane and the three-dimensional parts of the drawing method.
Sawing: the scope of application and use of hand saws, the installation of saw blades, the correct posture and operation of sawing.
Filing: scope of application, types of files, selection and filing methods, the correct posture and operation of filing, inspection of the size and shape of the parts (with a steel ruler, calipers, angle ruler, etc.)
Drilling: drilling methods, the composition of the drilling machine used, the movement and purpose, tools and fixtures, and mastery of commonly used drill sharpening methods.
Three, practical training equipment
Materials; clamp workbench, vise, hand hammer, hacksaw, file, burin, needle, ruler, vernier calipers, vernier height gauge, universal angle ruler
1, scribing characteristics According to the drawings or the physical dimensions of the requirements of the workpiece, scribing tools in the rough or semi-finished workpiece to be processed parts of the contour line or as a reference point, line of the operation. These points and lines mark the shape, size or characteristics of a part of the workpiece, and determine the dimensional limits of machining.
2, the characteristics of sawing with a hand saw on the material or workpiece to cut off or groove and other processing methods known as sawing. It has convenient operation, simple, flexible features, without any auxiliary equipment, does not consume power, in the temporary site, as well as cutting shaped workpieces, repairs and other occasions, the application is very wide.
3, the type and structure of the hand saw hand saw by the saw bow and saw blade two parts. Saw bow for installation and tensioning saw, fixed and adjustable two kinds. Fixed can only install a length of the saw blade, adjustable by adjusting the saw blade can be installed in several lengths.
4, sawing method (demonstration lecture)
5, workpiece clamping (1) the workpiece should be clamped on the left side of the vise, in order to operate; (2) the workpiece should not be too long out of the jaws, the saw seam from the side of the jaws of about 20ΜΜ or so, to prevent vibration; (3) the saw seam line should be parallel to the side of the jaws, to facilitate the control of sawing does not deviate from the scribing line; (4) tightly to be firm, while To avoid the workpiece clamp deformation and clamping bad machined surface.
6, saw blade installation When installing the saw blade, the saw teeth should face forward, not reverse. Saw blade installation should be appropriate, too loose or too tight in the sawing over the kind of saw blade are easy to break, too loose will also be in the saw cutting saw slit is easy to be skewed, the general degree of tightness to two fingers of the force of the spinning until tight.
7, start sawing method start sawing far from the saw and near the start saw two kinds of, in order to avoid the saw blade stuck or cracked, generally try to use far from the saw. Start sawing angle should be smaller, generally not more than 15 °.
8, sawing speed, pressure, reciprocating length should be appropriate. General sawing speed of about 40 times / min, sawing hard materials slower, sawing soft materials faster. The saw blade should be driven in a straight line reciprocating, do not swing left and right. Keep the saw blade 2/3 or more work.
9, a variety of workpiece sawing method sawing posture and operation: sawing standing position and burin cut basically similar to the left foot half a step forward, the right foot slightly towards the back, natural standing, the center of gravity is biased in favor of the right foot, the right foot should be stood straight, the left knee joints should be slightly naturally curved, holding the saw should be self-heating stretching, the right hand holds the handle, the left hand to support the bow, the movement of the right hand exertion, the left hand pressure should not be too much, mainly to assist the right hand to hold the saw straight. assist the right hand to hold the saw bow. There are two kinds of posture when sawing: one is a straight line reciprocating movement, suitable for sawing thin workpieces and straight bad; the other is oscillating. This method of operation, both hands move naturally. Not easy to fatigue, high cutting efficiency. When sawing the workpiece should be clamped on the left side for operation. Workpiece should be clamped to avoid vibration in the sawing process
10, plane filing methods and inspection (downward filing, cross filing, push filing) roughing with two cross the direction of the workpiece for filing, this cross filing method can be judged by filing the surface of the height of the situation, in order to file the high side of the flat, finishing with the file along the length of the direction of the workpiece for filing, filing can be obtained after filing the file marks of the positive and straight
Compare neat and beautiful; correct the plane or correct the size of the available push file to improve accuracy or reduce surface roughness. In the filing plane, we should always check the workpiece filing surface is flat, generally with a steel tape or a ruler through the light method of checking the ruler close to the surface, along the longitudinal, transverse, the two diagonal direction of the multi-position check. Check the angle, can be used straightedge, protractor or sample ruler to the angle of the right, with the translucent method of checking.
Four, practical training steps;
1, scribing: two planes perpendicular to each other as a benchmark, accurate and clear, there shall be no duplication of line segments;
2, sawing: pay attention to retain the machining allowance;
3, filing: rough filing and then fine rubbing
4, drilling: start drilling in the sample punching eye;
5, tapping, the head taper: the two taper. The main idea of verticality.
Five, practical training notes
1, clamp table should be placed in a place where it is easy to work and suitable light;
2, table vise clamping tools, not to use a hammer to hammer the table tiger handle or steel pipe to apply clamping force.
3, blanks and processed parts should be placed in the specified location, neatly arranged, placed smoothly, to ensure safety, easy to pick up and put down, and to avoid bruising the processed surface.
4, the processing allowance to stay in moderation, stay too much will be a burden to further processing;
5, the processing of the workpiece should pay attention to the standing position, otherwise long time to work on the body is not good;
Sixth, the practical training summary;
Clamping internship is a compulsory engineering students of various specialties of a very strong practical technical foundation courses. Students in the pincer internship process through independent practical operation, will be related to the basic process knowledge of mechanical manufacturing, basic process methods and basic process practice organically combined, engineering practice comprehensive ability training and ideological and moral character and quality of cultivation and forging. Clamping internship is an effective way to cultivate students' practical ability. It is also a very important and meaningful compulsory course for our engineering college students. Clamping internship is a practical opportunity for us to master knowledge. The main task of our clampwork internship is to be a clampworker.
Through the teacher's explanation, demonstration and their own personal practice, I finally understand what is the pincer, but also understand why some people say "when the pincer is the most tired!" Pliers are mainly hand-operated, using a variety of tools to complete the processing, assembly and repair of parts and other work. Compared with mechanical processing, labor intensity, low productivity, but can complete the machining inconvenience processing or difficult to complete the work, while the equipment is simple, so in the mechanical manufacturing and repair work, is still indispensable to the important types of work.
While the practical training is very tiring, but I came into contact with the basic tools to be mastered as a locksmith, as well as the basic technology to be mastered as a locksmith, which will be invaluable experience in my future work. At the same time, I also have a deep understanding of the hard work as a clampman, these experiences are valuable assets in my life.