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Number of SSV's:
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Number of Solutions:
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Suspected Sources of Variations (SSV's) | Tool for pinpointing | Technical solutions |
|---|---|---|
Excessive speed or feed | VS | Reduce speed first , then feed rate if required |
Excessive stock removal | MVA | Increase drill size , use core drill or preream |
Excessive stock removal | PPS | Increase drill size , use core drill or preream |
Excessive thurst | MVA | Reduce feed rate |
Excessive thurst | MVA | Reduce feed rate and/ drill length |
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