Cutting tool with pressure sensor
AssigneeKennametal Inc.
InventorChristoph Gey
Life of this patent
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Abstract
A cutting tool comprising at least one cavity spaced apart from an outer contour of the cutting tool by a wear layer, wherein a thickness of the wear layer corresponds to a wear limit of the cutting tool, wherein the cavity is fluidly connected to a supply line arranged within the cutting tool and configured so as to provide a predetermined pressure in the cavity, wherein a pressure sensor fluidly connected to the supply line indicates a wear of the cutting tool when the thickness of the wear layer is reduced to the extent that a pressure change occurs within the supply line.
Claims16
A cutting tool comprising at least one cavity spaced apart from an outer contour of the cutting tool by a wear layer, wherein a thickness of the wear layer corresponds to a wear limit of the cutting tool, wherein the cavity is fluidly connected to a supply line arranged within the cutting tool and configured so as to provide a predetermined pressure in the cavity, wherein a pressure sensor fluidly connected to the supply line indicates wear of the cutting tool when the thickness of the wear layer is reduced to the extent that a pressure change occurs within the supply line;
- the predetermined pressure being a pressure such that a vacuum is present in the cavity at the predetermined pressure;
- the pressure sensor configured to detect a rise in pressure in the cavity that is greater than the predetermined pressure to detect the wear of the cutting tool.
Dependencies are inferred from the claim text.