Table 7 Predicted and Measured energy demand of the feed axes Energy Characteristics Takisawa Mac-V3 milling machine 500 3000 mm/min mm/min (W) Base line power 2763 2763 (W) Power of running the spindle at 3113 3113 speed of 4000 rpm , (kJ) (predicted) Predicted Energy of the feed axis 26.43 12.76 along the x-axis at air cutting , (kJ) Measured Energy of the feed axis 26.85 14.04 (measured) along the x-axis at air cutting , (kJ) Predicted Energy of the feed axis 27.11 14.15 (Predicted) along the y-axis at air cutting , (kJ) Measured Energy of the feed axis 27.20 14.89 (measured) along the y-axis at air cutting 28.44 13.94 , (kJ) Total predicted Energy of the feed (predicted) axes during air cutting of a slot at an angle of , (kJ) Total measured Energy of the feed 28.74 14.81 (measured) axes during air cutting of a slot at an angle of 2 9 % Difference between predicted and measured % Difference between predicted and measured 0 5 % Difference between predicted and measured 1 6
Table 7 Predicted and Measured energy demand of the feed axes Energy Characteristics Takisawa Mac-V3 milling machine 500 mm/min 3000 mm/min (W) Base line power 2763 2763 (W) Power of running the spindle at speed of 4000 rpm 3113 3113 , (kJ) (predicted) Predicted Energy of the feed axis along the x-axis at air cutting 26.43 12.76 , (kJ) (measured) Measured Energy of the feed axis along the x-axis at air cutting 26.85 14.04 , (kJ) (Predicted) Predicted Energy of the feed axis along the y-axis at air cutting 27.11 14.15 , (kJ) (measured) Measured Energy of the feed axis along the y-axis at air cutting 27.20 14.89 , (kJ) (predicted) Total predicted Energy of the feed axes during air cutting of a slot at an angle of 28.44 13.94 , (kJ) (measured) Total measured Energy of the feed axes during air cutting of a slot at an angle of 28.74 14.81 % Difference between predicted and measured 2 9 % Difference between predicted and measured 0 5 % Difference between predicted and measured 1 6