Flank contact load distribution at cutting tool wear

Wear of cutting tool in the most of cases occurs on the tool flank and causes increasing of cutting force which results aggravation quality of processed surface and accuracy, destruction of tool. Knowledge of distribution of contact load on the wear chamfer of tool flank is used for analysis of stressed state, calculation of strength and rational use of cutting tools. Experimental and theoretical study of contact load distribution on the wear chamfer of tool flank is described. Character of cutting tool wear is depended from ductility of machined material because character of normal contact load on the flank wear is depended from type of chip and it connects with bending of cut off surface. Solving of theory of elasticity task was used about action of force on the elastic semispace and equation was received for curve of elastic recovering. Distributions of contact load were received by experiments for ductile and brittle brass. Normal contact load were calculated for checking theoretical study which showed good results.