Steel Structure,Steel Structure Warehouse,Steel Warehouse Fenghua Jade Motor Co., Ltd. , http://www.china-steel-structure.com 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: