Tool wear and tool failure monitor system

Details Tool wear and tool failure monitor system Tool wear and tool failure monitor system

G - Physics

01

N

341/109, 340/133

G01N 3/58 (2006.01) B23Q 17/09 (2006.01) G01N 3/56 (2006.01) G05B 19/4065 (2006.01)

Patent

CA 1215158

21 ABSTRACT OF THE DISCLOSURE In a computerized numerical control (CNC) or a direct numerical control (DNC) machine tool, the second derivative as a function of time of the net power applied to the cutting tool is used to detect approaching tool failure, and a statistical representation of such occur- fences with a series of tools is used to derive instan- taneously the percentage of wear experienced by a new tool in terms of the statistically expected critical level of net power.

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