Boring bar in Vespel
Trying to do a finish bore in Vespel, DOC is .008". Feed should be .001-.003"/rev according to DuPont guidelines, but HMS is calculating .029"/rev. Please advise. Using carbide insert with .0312 radius. I noticed that when I edit calculated feedrate and RPM it seems to recalculate both feedrate and RPM as well as SFM. Please advise.