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In machining, drilling and reaming are often encountered. Drilling can only meet the general tolerance requirements. For the machining of holes with a precision of 9 or more, it is necessary to ream the reamer. In the reaming work, the most used is the W18Cr4V high speed steel reamer. After the high-speed steel reamer wears, the hole diameter of the hinged hole will be reduced, the surface roughness is poor, and the processing requirements cannot be met. For this reason, the reamer after the wear is repaired, and the specific method is as follows:
The Acid Brushes is made of horse hair or bristle and metal handle. It can be used for gluing or dust removal. For example, for the application and removal of acid / flux, rosin core solder flux is used. Wipe off stains and apply stain removing chemicals. Used to apply grease or brush seam sealant in automotive body applications. Apply dielectric grease and corrosive materials. After machining or drilling some parts, apply oil to all parts and clean the oil and debris. It is convenient to remove dust from places you can't reach and dust from the computer fan / radiator.
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