METHOD FOR PREDICTING WEAR RESISTANCE OF HARD-ALLOY CUTTING TOOLS Russian patent published in 2008 - IPC G01N3/58 

FIELD: machine engineering, namely predicting and monitoring of wear resistance of hard-alloy cutting tools.

SUBSTANCE: resource of fault-free operation of cutting tools depends upon intensity of destruction processes on their contact surfaces. Poly-oxide structures - semiconductor films formed on working surfaces of cutting tool influence upon value and direction of said destructions. Prediction and monitoring of wear resistance of cutting tools are realized according to shift value of frequency of valence fluctuations in infrared spectrum of hydroxyl groups (OH) adsorbed by poly-oxides generated on surfaces of hard-alloy cutting tools subjected to high-temperature oxidation at temperature and cutting process duration equal to those in cutting zone of tool till preset wear degree criteria. Usage of such method is realized on correlation between wear resistance of hard alloys and adsorption properties of poly-oxide structures formed on surface of hard alloys. Wear resistance value increases at increased shift of valence fluctuations of hydroxyl groups adsorbed by poly-oxide structures to side of high frequencies.

EFFECT: enhanced accuracy of predicting wear resistance of cutting tool.

2 dwg