The process manner due to the small diameter end mill and the process manner due to

摘要

PROBLEM TO BE SOLVED: To provide a machining method which can suppress 'self-excited chatter' during machining by a small-diameter endmill, a method for determining machining conditions for suppressing the self-excited chatter, and an apparatus for carrying out the machining method. ;SOLUTION: The 'self-excited chatter' during machining by the small- diameter endmill can be suppressed by determining the number of revolutions N (rpm) of the endmill during machining so as to satisfy a following equation (1); N=(ω×60)/(e×n)...(1), where ω: the natural frequency of a machine tool to be employed (Hz), e: the number of the cutting teeth of the small-diameter endmill, n: an integer greater than or equal to one.;COPYRIGHT: (C)2004,JPO