Potapov

This article describes an estimation technique of the contact area in the “spindle-tool” cone joint used at NC machine tools. This method was developed as an alternative for quality control of the contact area in the cone joint and may be interesting for machine-tool builders during the stage of manufacturing the spindle’s cone sleeve. The proposed method contains calculations of transient electrical resistivity and coupling capacitance. The relations obtained during the investigation allowed to establish a connection between the contact area and specified electric parameters. The results can be useful for postgraduates and researchers.