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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
Tool surface finish
VS
Lap cutting edge and rake surfaces
Tool tip has worn causing interferance at root radius of part
OBS
Change cutter
Tool too rigid during boring process
OBS
Use floating tools
Tool wear
MVA
Increase tool change frequency
Tool wear
MVA
Change tool material , feeds,speeds and coolant
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