A FORCE MODEL FOR A SINGLE-POINT TOOLS WITH A CHAMFERED MAIN CUTTING EDGE

A force model for a single-point tool with a chamfered main cutting edge was proposed in the present study. The experimental data were confirmed by the turning experimental results to be in close correlation with the theoretical values. Initially, special tool holders and their geometrical configurations were designed and discussed. The proposed tool holders were milled using medium-carbon steel bars and grinded with the mounting tips to various specifications. Cutting experiments were conducted on pure aluminum and carbon steel for studying the mechanism of the formation of a secondary chip; and in addition, the ideal tool geometrical configurations of the relationship between the shapes of the secondary chip and the tool geometries were observed.