Finegrain
Diamond
- Joined
- Sep 6, 2007
- Location
- Seattle, Washington
1018 steel
1" thick
.7504" thru bore
Rough it out to .748" with an endmill
Brother Speedio S700X1
Stanny micron boring head
16mm x 60mm bar
TPGH09020L TN60 insert (Kyocera cermet)
2,000 RPM
.0015 IPR
Flood coolant
I get good results for 4 or 5 parts, then I have to start bringing the cutter out a couple tenths between parts, then after 7 or 8 parts the surface finish suffers and I have to rotate the insert.
Why so poor tool life?
Thanks, and regards.
Mike
1" thick
.7504" thru bore
Rough it out to .748" with an endmill
Brother Speedio S700X1
Stanny micron boring head
16mm x 60mm bar
TPGH09020L TN60 insert (Kyocera cermet)
2,000 RPM
.0015 IPR
Flood coolant
I get good results for 4 or 5 parts, then I have to start bringing the cutter out a couple tenths between parts, then after 7 or 8 parts the surface finish suffers and I have to rotate the insert.
Why so poor tool life?
Thanks, and regards.
Mike