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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 wear
MVA
Adjust feed , speed , depth of cut , coolant
Toolholder / overhang
OBS
Minimize deflection of machine components, workholding devices, toolholders and tools
Tooth lands too wide
VS
Reduce land widths by regrinding
Trueing
OBS
Point trueing tool down 3deg at the work/wheel contact edges
Trueing
OBS
Make edges of face round
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