Precision balancing on standard tools
At high sppeds a loss of balance or imbalance produces a negative effect on machining results, particularly on tools for finish machining. Standard precision balancing is particularly difficult to carry out on tools with adjustment in the diameter as the balance ratios shift with the change of machining diameter.
What is imbalance?
By imbalance we mean an uneven distribution of weight with reference to the axis of rotation. The larger the weight, the greater the imbalance and the further this occurs beyond the radius of the tool.
The formula for this is as follows:
Imbalance = imbalanced weight (lb/g) x Radius (inch/mm)
Normally lb/g x inch/mm is used as a unit of measurement.
During rotation the imbalance has an extremely negative effect as a result of the imbalance (centrifugal force). This force is calculated as follows:
Centrifugal force = Weight (lb/kg) x Radius (inch/m) x Angular velocity² (1/sec)²
The balancing ring which can be fitted to all KOMET M02 and M040 micro-adjustable heads provides an extremely simple "Do It Yourself" method of balancing tools over their full adjustment range.
The values given in the table are only recommendations which will produce an improvement in any imbalance which occurs. Where there are particular requirements with regards to balance, adjustments should be carried out on a balancing machine.
