Different Kinds of Steel Rasp Files for Hand Tools
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Hebei Aining Import And Export Trading Co., Ltd.
Different Kinds of Steel Rasp Files for Hand Tools
Proper selection of files has a great influence on imporving filing efficiency,filing quality and prolonging service life of files.Each file has its particular applications,you have to select proper files before filing. If you did not select the file rationally,the selected file will not maximize its performance and will lose filing ability too soon,and the filing qality will not be ensured.You need to select the file correctly based on the specific conditions of machining objects,and the following shall be considered.
1.The sectional shape of file shall be compatible with the filing surface shape of work-piece.
2.Bastard file is sultable for work-piece with high machining allowance,low machining accuracy and high surface roughness,but smooth cut file,on the contrary,is suitable for work-piece with low machining allowance,high machining accuracy and low surface roughness,the applications of second cut file are between the applications of bastard file and smooth cut teeth file.Dead smooth file applies to final finishing and smoothing of work-piece in order to improve dimensional precision and reduce roughness,while single cut file applies to machining soft material.
3.The dimensions and specifications of files depend on machining surface size and machining allowance of work-piece.Longer file is suitable of work-piece with greater machining surface size and machining allowance,but shorter file,on the contrary,is suitable for work-piece with lower machining surface size and machining allowance.The file shall be 150-250mm longer than filing surface.
4.Proper selection of handle makes your filing work easier and more efficient.
Usage of file
1.The anti-rust oil on the file shall be removed before filing,or the filing powder will stick to the space between teeth,thus the filling ability is decreased.
2.The filing shall be steady and the speed shall not be too fast,relative stability shall be kept between file and machining surface,and then ideal effect will be achieved.When filing,middle convexity will occur on machining surface because of the up and down movement of the file.
3.As for quenching work-pieces with high hardness surface,it is considered first than the work-piece is grinded,or after surface layer is grinded and then second cut file/smooth cut file is used,diamond file is adopted when necessary.
4.The teeth of new file are much sharp,so you can use the new file to machine soft matal first and to machine hard metal later,as a result,the service life to file will be prolonged.
5.The file is brittle and hard because it is mde of high carbon steel,thus it can not be used for striking something else and the scraps in file shall not be removed by striking,or else the file may be broken and danger may be happened.The scraps can only be removed along the file cut direction by steel wire brush and can not be blown off with your mouth.
6.Prevent the file falling from workbench which may hurt your foot or damage something else.
Files Storage
1.The files can not be overlapped can can not be placed with other hard tools either.
The teeth of the files must be kept clean and the files shall be stored in dry and ventilated place where they are out of the way of children
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