Flank Wear Measurement of Al-based Metal Matrix Composite Materials (MMC)

Abstract

Metal based Composite’s are the advanced materials possessing properties that make them useful in applications where high strength to weight ratio and ability to operate at elevated temperatures are required. MMC’s are difficult to machine, however, consisting of hard abrasive reinforcing medium set within a more ductile matrix material. This paper  results from a series of turning tests in which a number of  different cutting tool materials were used to machine an  Al(6063)/5 vol% SiCp Metal Matrix Composite. The influence of the cutting speed on tool wear was established for each tool material. It was found that carbide tools, both coated and uncoated sustained significant levels of tool wear after a short period of machining. The best overall performance was achieved using a titanium coated carbide insert.

Keywords: Metal matrix composite, MMC’s