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Why Balance Tools?
- After adding a cutting tool even to a fine-balanced tool holder, it is possible that the tool holder is beyond the balancing quality grade recommended
- Without controlling the balance of each tool holder each time it is inserted into the machine tool, a reliable utilization in the machine tool can not be guaranteed.
- Eliminate the costs of machine tool spindle repairs
- Avoid the down time of the machine tool while the spindle is repaired
- Avoid vibration at the cutting edge = help eliminate chatter
- Extend your high end cutting tool life by minimizing vibration
- Possible extension and guarantee of machine warranty
Factors of unbalance in milling spindles:
- unbalance of spindle itself
- unbalance caused by run-out error of spindle bearing (axis of symmetry [not = to] axis of rotation)
- run-out error of parts mounted on the spindle (i.e. coolant supply, clamping system)
- movable parts in spindle (i.e. Bellville washers of clamping system)
- run-out error of tool holder in spindle
-
unbalance of tool holder itself
- run-out error of pull stud
- run-out error of tool
- unbalance of parts mounted to the tool holder (i.e. clamping nut)
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