The problems that should be paid attention to when the file is used are as follows: when the file is pushed forward, it is cut by force only, when it is returned, it can be returned without force or cutting. Otherwise, it is easy to cause premature wear and tear of the file; when the file is cut, the total pressure of the file can not be too large, the space for storing scraps is limited, and the pressure is too large can only accelerate the wear and tear of the file. But the pressure can not be too small, too small file skidding, can not achieve the purpose of cutting. Generally speaking, there is a sense of toughness on the hand when pushing forward. When filing, the effective length of the file can not be used only for cutting. Otherwise, the local wear will be too heavy and the life will be reduced. Speed: generally 30-40 times per minute, speed is too fast, operator is easy to fatigue, and the file is easy to grind blunt; too slow, cutting efficiency is low. When filing, the eye plays to watch the reciprocating movement of the file, observing the force of the hand is fragrant and appropriate; several times to file to observe whether the plane of the file is smooth, found problems should be corrected in time.
Small files play a huge role in the hardware processing process, but many operators of the file is only half-understood, not yet proficient. Below we take you from five aspects to understand the structure of the file, familiar with the classification and selection of the file, master the use of the file method.
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