METHOD FOR REMACHINING ROLL OF ASSEL MILL

摘要

PROBLEM TO BE SOLVED: To provide a method for remachining a roll by which shortening of roll remachining time and the reduction of the cost of roll remachining tools and the cost of rolls are realized by reducing the machining allowance in the direction perpendicular to the roll axis when forming a new hump part by remachining the hump part of a roll for Assel mill. SOLUTION: Remachining is performed so that the top b' of the hump part 16 is positioned at a position in the oblique direction 21 deviated to the side of the advancing direction 20 shown by the arrow of a hollow tube stock 5 of a material to be rolled. By thus performing the remachining, as compared with a conventional roll remachining method, the new hump part 16 is made by cutting off the worn part 19 of the hump part 15 of the roll 14 with the machining allowance d' of which is less than the machining allowance d in the direction perpendicular to the roll axis 17 by the conventional method. COPYRIGHT: (C)2004,JPO&NCIPI