Hi mactec54,
I was machining Delrin. O.D cut was made in 2 passes with a .0005 final finish pass. RPM was 4800, 80 IPM Feed Rate with a .375 4 flute end mill. The depth of cut each pass was set at .450 with a total depth of .891.
I could have easily taken the entire depth on one pass as the load meter was hardly moving. Also I could have increased the Feed to 100 or 120 easily as the mill was not straining at all.
The chamfer cuts were at 6000 RPM at 144 IPM Feed rate.
Delrin cuts like butter.
John |