The tool's not upside down. (Well if you look at it it's turned away from you in the cutting position) It's turret up configured, so to answer your question the spindle is turning the right way. I started putting a lot more passes in and the chipping of the insert went away. When I went down to 150 RPM the chatter completely went away. In the part I'm making now small chatter is not an issue, so I sped it up to about 400 RPM to get the part out the door. The thread is a 14 X 2.0 metric. It's a long throw. 2 inches in a thru hole and the other part is 1.650 in a lind hole. Time is always an issue to the bottom line and if I get that part again, I need to tweak to get the cycle time down.
phoodieman |