Machinability study of nickel-aluminide alloys

Abstract

Preliminary machinability studies on the newly developed nickel-aluminide alloys are presented. Machining was conducted on a rigid, high-speed turning center using a variety of ceramic cutting tools, feed rates, depths of cut and cutting speeds. The results of these studies are presented.

It is observed that the optimum cutting for these alloys is very sensitive to the various combinations of the cutting parameters, and that the tool-life does not always decrease as the cutting speed increases, as might be expected. Rather, there are certain cutting speeds at which the tool life is significantly greater than the values for lower cutting speeds.