Preliminary Investigation on Rotary Ultrasonic Face Milling of Ceramic Matrix Composite C/Sic: Design of Experiments

Abstract

Abstract. The feasibility of rotary ultrasonic face milling (RUFM) of ceramic matrix composites was evaluated experimentally in this study. Preliminary experimental results show that, comparing with conventional grinding (CG), RUFM can reduce cutting forces dramatically though with a little enlargement of surface roughness. Both in CG and RUFM, a positive dependency of surface roughness on cutting force can be deduced. For machining of 2D-C/SiC composites, the fiber direction significantly affects the cutting force and surface roughness. When fibers are parallel to the cutting plane, the cutting force and surface roughness are much larger than that when fibers are perpendicular to the cutting plane.