Measurement of Cutting Torque by Speed Increasing Spindle
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A method of measuring cutting torque during milling using a small end mill, using a speed-increasing spindle with planetary gears is proposed. Its viability was confirmed by experiments using three types of end mill and the workpiece of NAK55. By attaching a few parts to a commercially available speed-increasing spindle, torque can be measured at a low cost. Using the torque measurement method proposed, it was experimentally demonstrated that the phenomenon that the higher the cutting speed, the smaller the cutting torque.
KeywordsCutting torque Measurement Speed increaser End milling Planetary gears
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