Method for diagnosing cutting tool dullness

Details Method for diagnosing cutting tool dullness Method for diagnosing cutting tool dullness

1988-06-28

1989-08-08

Noland, Tom

Measuring and testing

Surface and cutting edge testing

G01N 358

Patent

active

048541613

ABSTRACT:
A method for determining wear or dullness of a cutting tool used to machine a surface of a workpiece. Cutting tool dullness is determined as a function of a plurality of work-hardening values of the machined surface. Each work-hardening value is computed as a function of different and separately measured parameters. The workpiece is characterized as being excessively worn if all of the separately computed work-hardening values are greater than a threshold value.

REFERENCES:
patent: 3889520 (1975-06-01), Stoferle et al.
patent: 4563897 (1986-01-01), Moore
patent: 4644335 (1987-02-01), Wen
Jetly, S., "Measuring Cutting Tool Wear On-Line: Some Practical Considerations", Manufacturing Engineering, Jul. 1984, pp. 55-60.
Quinlan, Joseph C., "New Tool-Wear Sensors Aid Adaptive Machining", Tooling & Precision, Dec. 1987, pp. 41-43.

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