METHOD FOR PREDICTING WEAR RESISTANCE OF HARD-ALLOY CUTTING TOOLS Russian patent published in 2012 - IPC G01N3/58 

FIELD: metallurgy.

SUBSTANCE: standard wear resistance tests are performed during cutting of materials at optimum cutting speed or the speed which is close to it. Tests for the change in value of initial parameter from properties of surface structure formed during manufacture of hard-alloy cutting tool are performed. Reference-correlation "initial parameter - wear resistance" relationship is built. The value of initial parameter of current batch of hard-alloy cutting tools is controlled and wear resistance for current batch of tools is predicted on the basis of the relationship. As initial parameter there used is surface area of hysteresis loop obtained during monitoring of surface thermo-emf with activated and deactivated heating of hot probe with reduction of the surface area of which the wear resistance rises.

EFFECT: accuracy is improved and labour intensity is reduced during prediction of wear resistance of hard-alloy cutting tools.

5 dwg