A Consideration of Tool Wear Mechanism when Machining Metal Matrix Composites (MMC)

Abstract

The chip formation is very important for the comprehension of tool wear mechanism when machining MMC. The real of contact during the chip formation is not well known. Therefore a clear determination of the type of wear is only possible after a well-founded investigation on the wear appearances. These investigations have shown important differences if the hardness of the reinforcement material is higher or lower than the hardness of the cutting material. Furthermore the relation af the reinforcement particle size and the grain size of the cutting material influences the wear mechanism and the wear appearances.