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August 2020

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Adaptive Tool Monitoring System

Caron Engineering has announced a major update release of its Tool Monitoring Adaptive Control system, TMAC version 3.0.

TMAC is a real-time tool wear detection system that uses high-precision, multi-range sensors to determine if a tool is worn or broken. "Caron Engineering sensors are 10x more sensitive than other sensors on the market, allowing TMAC to cover a wider range of tools. TMAC has a separate high-speed processor that collects data at 200 times per second, and directly interfaces with any CNC control, to react instantly to wear and extreme conditions," said a company spokesperson.

TMAC 3.0 has been completely redesigned with an intuitive streamlined user interface that offers numerous configurations for viewing tool monitoring and sensor data. The TMAC system processor now houses its own web server, making the human-machine interface (HMI) browser-based, which enables real-time monitoring from any network connected device. Users (with assigned permissions) have live access to all TMAC systems on a shop floor from a single browser. Securities and permissions can be customized for each user to assign system access based on their user role and job function.

TMAC has an adaptive control mode that optimizes cutting with changing conditions due to wear, variations in material hardness, consistency and depth of cut. Using a power sensor to monitor motor power, TMAC overrides the machine tool feedrate to maintain a constant spindle motor power during cutting. This enables TMAC to increase the feedrate with low power cuts and decrease with high power cuts, and as tools wear. No operator intervention is necessary when TMAC is monitoring and controlling, making it suitable for unattended operations. "Users will see an immediate increase in productivity, extended tool life and overall reduction in cycle time (up to 60%). Cycle time savings are most significant with hard and difficult to machine materials," said the spokesperson.

In addition to power, TMAC monitors sensors for vibration, strain, coolant pressure and flow and spindle speed. The newly enhanced HMI has expanded the monitoring capabilities with TMAC. Users can customize views to show up to four sensor channels simultaneously in a single view. For example, the user can set up a single (split-screen) view to monitor power, vibration, spindle speed and coolant for a specific tool and section at the same time, and have unique limits for each sensor and channel. A user can create unlimited views to show data in a variety of ways, and easily toggle between views during monitoring. Using a vibration sensor, TMAC also monitors spindle bearing health, with the analysis initiated by calls in the CNC program.

The TMAC data viewer and event log stores all cutting data and events. Any number of data files can be opened simultaneously to easily view graphical differences and allows overlaying cutting data to compare and analyze cuts.

"TMAC's universal interfacing compatibility with any CNC control allows us to not only monitor processes and detect anomalies, but make real-time automatic (corrective) adjustments without the need for human intervention. This is true of all Caron products," said Rob Caron, President of Caron Engineering.

For more information contact:

Caron Engineering, Inc.

116 Willie Hill Rd.

Wells, ME 04090


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