Patent ID: 8568198

Claim:
A system for machining a work-piece, comprising: a machine tool for machining a work-piece; a coolant delivery unit for delivering a coolant flow having a flow rate and a pressure to said machine tool; a pressure sensor for measuring said pressure of said coolant flow; a flow rate sensor for measuring said flow rate of said coolant flow; and a control unit in communication with said coolant delivery unit, said machine tool, said pressure sensor, and said flow rate sensor, and adapted to: control said coolant delivery unit for setting said flow rate and said pressure to a target flow rate and a target pressure, respectively, using said measured flow rate and said measured pressure; detect a first anomaly when at least one of said measured flow rate and said measured pressure deviates from said target flow rate and from said target pressure, respectively, by a first predetermined amount, and output an alarm signal while allowing a machining of said work-piece to continue; and detect a second anomaly when at least one of said measured flow rate and said measured pressure deviates from said target flow rate and said target pressure, respectively, by a second predetermined amount greater than said first predetermined pressure amount, respectively, and send a stop signal to said machine tool for stopping machining of said work-piece.