Pratt-whitney Canada Corp

James Leishman

Amr Elfizy

Fuat Atabey

A cooling assembly for a machine tool including at least first and second nozzle rings mounted on the spindle housing, respectively defining first and second coolant conduits and respectively including first and second pluralities of nozzles in fluid communication with the respective conduit. Each first nozzle is oriented with an outlet thereof directed toward a first machining zone containing cutting edges of at last one tool having a first length. Each second nozzle is oriented with an outlet thereof directed toward a second machining zone different from the first machining zone and containing the cutting edges of at least one tool having a second length.

Multiple zone cooling apparatus

A method for operating a machining tool, comprising: setting a flow rate and a pressure of a flow of coolant to a target flow rate and a pressure target, respectively, the coolant flow being provided to the machining tool; machining a work-piece using the machining tool; measuring the flow rate and the pressure of the flow of coolant; and detecting an anomaly with respect to the coolant flow; and taking a corrective action depending on the type of the detected anomaly.

Active coolant flow control for machining processes

A system for machining a work-piece is described which includes a machine tool and coolant delivery unit, pressure and flow rate sensors, and a control unit. The control unit controls coolant delivery and is adapted to detect a first anomaly when either a measured flow rate or pressure deviates from target flow rates and pressures by a first predetermined amount, and to detect a second anomaly when the measured flow rate or pressure deviates from the target flow rates and pressures by a second predetermined amount greater than the first. An alarm signal is outputted when the first anomaly is detected, and the machine tool is stopped when the second anomaly is detected.

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Candiac, Canada

James Leishman