PROPOSED TOOL WEAR MODEL FOR MACHINING PARTICLE REINFORCED METAL MATRIX COMPOSITES

摘要

While metal matrix composites (MMCs) have proven mechanical advantages over conventional alloys, machining difficulty has limited their widespread use. A tool wear model for machining MMCs could be used to not only predict the machinability of a particular alloy, but could also be used to develop alloys which are more easily machined. This paper proposes a wear model that accounts for workpiece and cutting tool constituents and their properties, in addition to the traditionally used cutting conditions. This preliminary model has been developed for Aluminum/SiCp systems. This paper concentrates on model development with a brief presentation of experimental validation work.