IN-SITU CRANKSHAFT RECONDITIONING METHOD

摘要

The present invention relates to an in-situ processing method of a crankshaft which is a standardized processing method capable of conveniently, precisely, and accurately process the crankshaft in a medium- or a large-sized ship without separating the crankshaft; thereby improving the efficiency and quality in processing the crankshaft. According to the present invention, an in-situ processing method of a crankshaft comprises: a processing apparatus preparation step of preparing a crankshaft processing apparatus to process the crankshaft; a primary heat treatment step of primarily performing a heat treatment in order to lower the hardness of the target portion of the crankshaft; a target diameter calculation step of calculating the target diameter of the crankshaft; an equipment mounting step of mounting a crankshaft processing apparatus on the crankshaft; a cutting process step of performing a cutting process on the target portion to the target diameter of the crankshaft by installing a cutting function part on the crankshaft processing apparatus; a grinding process step of performing a grinding process on the target portion of the crankshaft by installing a grinding function part on the crankshaft processing apparatus after the cutting process is performed on the target portion of the crankshaft; a polishing process step of performing a polishing process on the target portion of the crankshaft by installing a polishing function part on the crankshaft processing apparatus after the grinding process is performed on the target portion of the crankshaft; a primary inspection step of measuring the surface roughness, the straightness, and the roundness of the crankshaft on which the polishing process is completed; a secondary heat treatment step of performing a heat treatment to recover the hardness of the target portion of the crankshaft; and a secondary inspection step of measuring the surface roughness and the hardness of the crankshaft after the secondary heat treatment is performed on the crankshaft.