PRECISION MACHINING METHOD OF CUTTING BLADE OF ROTARY MULTI-BLADE TOOL

摘要

PROBLEM TO BE SOLVED: To provide a precision machining method capable of reducing the dimensional difference from the center of rotation of a cutting blade of a rotary multi-blade tool by forming cyclic grooves specific to each cutting blade in the rotary multi-blade tool, specifying the outermost circumferential cutting blade and determining the target machining amount from a machining striation, and successively repeating the working.;SOLUTION: In the precision machining method of the cutting blade of the rotary multi-blade tool, comb-blade grooves of different patterns are formed on a circumferential surface ridge or an end face ridge of each cutting blade of the rotary multi-blade tool by each cutting blade, a sample is cut by using the rotary multi-blade tool, the outermost circumferential cutting blade is specified from the pattern of the width of the lowest valley of a worked surface, and the specified outermost circumferential cutting blade is worked by the amount of the difference between the lowest valley and the highest hill of the working surface with an optional excessive working amount β added thereto. By successively repeating this work, the height of the cutting blade is aligned at high accuracy.;COPYRIGHT: (C)2010,JPO&INPIT