Experimental analysis of chatter in grooving with slender blades

Abstract

This paper reports on experiments that offer new insights on chatter in grooving with slender blades. Experiments reveal two distinct blade modes cause two types of chatter: diametrical chatter that is of the regenerative kind and snaking chatter on the side walls that is of the mode-coupling type. We find that diametrical chatter can be avoided by using damped blades designed for the purpose. However, since no such blades are available to damp snaking chatter, we show that by cutting in the low-speed process damping region snaking chatter too can be avoided.