Example of metalworking exercitation report (offer reference only)
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source:PERFSO CNC Machining
Two weeks metalworking exercitation ended by a definite date, I harvested the knowledge that the place in a lot of classroom cannot acquire from which. One, safety first the first day today is an exercitation. Just nodded to exercitation ground, we are seen the kinescope of aspect of an exercitation security by the requirement, the detailed broadcasted a lot of type of work exercitation in kinescope asks, resemble electric welding gas welding, heat treatment. Look at a lot of accidents that operate a machine because of pressing a demand and produce, tell our similar incident that happens before plus the teacher, I fear really a bit, a lot of people also have same feeling with me. The teacher saw this, tell us, as long as according to accurate method, master essentials, won't produce an accident, then I understood, normative operation, be safety is important assure! Listened to a teacher arouse class, go first floor listens the knowledge that the teacher explains aspect of concerned industry security. Look at the material that sends, I just understand the importance of industrial safety, industrial safety knowledge is administrator of industrial high level and the necessary knowledge that develop personnel, to draft or the securing rules of an enterprise, reduce industrial pollution, very important knowledge is for the respect such as fire and explosive prevention, if do not master, not only can be opened up to be ignorance, still can produce grave accident sometimes. Read a material, the teacher explained to have all sorts of knowledge of official seal fire to us, revealed 4 kinds of commonly used fire extinguisher, have carbon dioxide fire extinguisher, powder fire extinguisher, 1211 fire extinguisher and efficient and flame retardant fire extinguisher. Chloric fluorine hydrocarbon is contained inside 1211 fire extinguisher among them, can cause to ozonosphere destroy, now already taboo, powder fire extinguisher is to use more extensive, to the fire of combustible liquid, paint, wiring, can be put out with it, but have as a result of hind of put out a fire residual, reason does not apply to the put out a fire of accurate machinery or instrument, and its refrigeration function is finite, cannot drop the exterior temperature of combustion content quickly, easy resume combustion. Carbon dioxide fire extinguisher offsetted the weakness of powder fire extinguisher, apply to the put out a fire of accurate instrument in great quantities, and as liquid state carbon dioxide evaporate, the exterior temperature of combustion object also can be reduced quickly. Efficient and flame retardant fire extinguisher is the better fire extinguisher that develops in recent years, it can form in the surface flame retardant film, prevent combustion, cause of complete isolation fire, and because this film is protein, do not have any harm to human body, the flee for one's lifing that reason can use at producing fire moment -- get on liquid gush with the hair in the skin with fire extinguisher, can avoid to be hurt by baked wheaten cake inside short time. Saw fire extinguisher, we observed emery wheel again, knew its use method, disassembled lesser emery wheel, the quantity takes its diameter, the data that goes up according to nameplate again, calculated the linear velocity of emery wheel. Came off work already quickly at this moment, the teacher centered us, summed up the content in the morning, let us write an exercitation to work, calculate an end in the morning. 2, thin plate machines laminose treatment to be what danger compares in metalworking exercitation, because operation tool is some of very sharp thing, operand is a plate, want to be underlined on this plate, use scissors cut out unwanted material next, always have delimit the likelihood of sodden hand. But because work is more interesting, it is box of an iron sheet, everybody's enthusiasm is very tall still. But be being done is not in that way, it is difficult to underline, clipping is more difficult, cut a fault not carefully, be about to cry really without the tear. But the perfect fittings that sees oneself are cut, have feeling of a kind of achievement again. When the iron case that makes when oneself is assembled, it is to all sorts of feelings well up in one's heart really. The purpose that metalworking jackarooes also may be in this, let us realize success and paid concern. The most stirring that momently, it is iron box when closing, you can not look down upon this to close, it is the most difficult that this closes, all error can are opposite in front this concerns generation effect, can close, be pair of iron boxes is the most important decide. 3, lathe work is in of a week on Thursday, we ever operated numerical control lathe, control lathe to undertake machining namely through process designing. Pass the operation of numerical control lathe and process designing, my deep sense got digitlize pilot convenient, accurate, quick, want to input correct procedure only, lathe can execute corresponding operation. The lathe of numerical control of and rather than is done not have so relaxed, we the 2nd week Zhou Si jackarooes with respect to what had lathe work. Book edge looks to see lathe be familiar with each component of lathe by the side of us above all, lathe is main by box of gear-box, main shaft, hang round of box, feed box, smooth board box, tool carrier, tailstock, lathe bed, guide screw, feed rod and joy stick composition. Lathe undertakes operating through each handle, the teacher explained the action of each handle to us again, letting us machine a both sides next is globose, a columnar workpiece is among. Teacher first preliminary set an example operation method, machined one part, let us begin to machine next. A very important facet in lathe treatment should choose correct knife namely, at the beginning the end panel car that we should give cylinder place is smooth, be about to use slant lathe tool will machine, it is grooving and treatment next spherical, be about to change at this moment with grooving knife. The knife head width of grooving knife is lesser, have advocate cutting knife and knife of two deputy cutting, its knife head is lesser, break off easily, reason uses small cutting dosage. Grooving when use the left and right sides to lend a knife the law. Cut groove, be about to machine spherical, for the person that this never has used lathe this kind to us, it is a test really. My ceaseless roll is transverse with fore-and-aft control handle, cautious treatment, did full afternoon, still calculate satisfaction, the sample that takes us to look compared with the teacher nevertheless still was differred many, and the hot scrap scald that when be being machined, my hand still is flown off to come, after all, a word, still be inexperience. But look at oneself to process the work that come out, in the heart very glad really. 4, painstaking benchwork listens early people has said benchwork is very painstaking, but I think benchwork does not obtain tool file a few times namely all the time, a few times to curium did not go? How is the meeting painstaking? Till today -- exercitation the 2nd week Zhou San afternoon, I just am experienced. What did the teacher say more, introduced table vice namely, the file uses a method with what curium, call us to machine the hex nut of a M12 for material with punty next, the fluctuation two sides that wants a nut uses file defeat to make the same score, even defeat gives 6 side, of course even bore. Clicked in the heart that listens to me, this should be done how long ability is OK machine a paragraph of punty into nut! The one side defeat that is a punty above all is smooth, making the same score the exterior defeat of bumpy can not be an easy thing, want to master accurate method to just go, the key should make the motion of the file maintains a level namely, this should rely on in defeat to cut the pressure ability that two tactics adjusts gradually in the process to achieve. In the course that cuts in defeat, when otherwise will examine with angle square whether already defeat is smooth. Defeat became good an end panel, next work even if curiumed, want a paragraph of next 10mm to curium with handsaw, same, have regular method, with the right hand the left hand that hold a power supports an old unit of length for measuring land, thrust basically is mastered by the right hand with the size of pressure, notice left-hand pressure does not want too big, standing pose is the body ahead and line of table vice center become about 45 degrees of part, right leg and line of table vice center become 75 degrees of part, left foot and line of table vice center become 30 degrees of part. With correct methodological ability already save labour improves efficiency again. After curiuming, follow defeat another end panel, 6 flank of nut can be machined when two sides is smoother, the tool is a file likewise. Worked 3 many hours, came out 6 treatment of careless at long last, because time concerns, cannot catch bore, such us " exercise " be given in. Actually at the beginning, the teacher tells the purpose that we jackaroo today one is experienced craft, because benchwork basically relies on manual treatment namely, another experiences the life namely. Although compare trouble drily afternoon really, but still be quite contented inside the heart! In this weak point inside two weeks time, we still undertook electric welding gas welding, note model to squeeze model, the exercitation that waits with CAD is operated, absorbing, especially gas welding, be being looked at at the beginning is quite horrible really, after learning however, can discovering is not so bad thing. This paragraph of time, what although want everyday,rise is quite early, also have not enough time to take a nap midday sometimes, it is quite painstaking, but experience that is contented, whats cannot be replaced. Acquired a few fundamental skill will come to us also have profit very much. Now, there is a handicraft on my table, that is the myself when chemical treatment starts work those who do. I place it on the table, the hardship that him hope often can remember to metalworking jackarooes and tired, joyous song and laugh language, also hope it can remind me constantly: Want to become an eligible worker, want to master excellent skill above all. CNC Milling