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AssigneeKennametal Inc.
InventorsNaveen Kumar Kondameedi, Christoph Gey
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A method for non-destructive testing a cutting insert to determine coating thickness id disclosed. The method includes the steps of using a source of electromagnetic energy to ablate a surface of the cutting insert to non-destructively form a geometric feature and expose the substrate and each layer of the coating; and measuring the thickness of each layer of the coating. In one example, the geometric feature is a groove with a generally trapezoidal shape. In other examples, the groove can have a U-shape, V-shape, and the like. The thickness of each layer of the coating is determined using focus variation, contrast detection, confocal microscopy, an interferometric microscopy, an imaging interferometric microscopy, or similar technique.
A method for non-destructive testing of a cutting insert to maintain performance of the insert after the non-destructive testing, the cutting insert comprising a substrate and one or more layers of coating, the method comprising:
A method for non-destructive testing of a cutting insert to maintain performance of the insert after the non-destructive testing, the cutting insert comprising a substrate and one or more layers of coating, the method comprising:
A method for non-destructive testing of a cutting insert to maintain performance of the insert after the non-destructive testing, the cutting insert comprising a substrate and a first coating layer, the method comprising:
Dependencies are inferred from the claim text.