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Speed & Feed Recommendations
Ap
Diamond Hardness Ae Ae Vc 1/8 1/4 Diameter (D1) 3/8 1/2
1, 1B, 3, 3B BRINELL (SFM) 22003 11002 (inch) 7334 5501
Fractional Ae x D1 Ap x D1 0.0009 0.0023 5/16 0.0043 0.0058
720 38.3 8801 63.8
RPM 50.6 0.0036 63.1
76.6 127.6
Profile Fz 17725 63.4 4431
0.25 1.5 Feed 0.0075 0.0050
265.9 44.3
(576-864) 2 flutes (IPM)
531.7 88.6
GRAPHITE N/A Feed 11766 101.2 126.7 126.2 2941
Ultrafine, Superfine 3 flutes (IPM) 0.0005 8862 7090 5908 0.0035
580 RPM 12.2 0.0020 0.0031 0.0038 20.6
35.4 44.0 44.9
Slot Fz 24.5 41.2
1 1 Feed 10696 2674
0.0005 0.0030
(464-696) 2 flutes (IPM) 16.0
9.6
Feed 70.9 87.9 89.8 32.1
3 flutes (IPM) 19.3 5883 4706 3922 9168
36672 0.0014 0.0022 0.0026 0.0058
385 RPM 0.0009 16.5 20.7 20.4 106.3
63.8
Profile Fz 212.7
0.25 1.5 Feed 127.6 7334
29338 0.0050
(308-462) 2 flutes (IPM) 0.0008 73.3
44.0
CompositeS N/A Feed 32.9 41.4 40.8 146.7
FRP, CFRP, GRP 3 flutes (IPM) 88.0 5348 4278 3565
350 RPM 0.0012 0.0019 0.0023
12.8 16.3 16.4
Slot Fz
1 1 Feed
(280-420) 2 flutes (IPM)
Feed 25.7 32.5 32.8
3 flutes (IPM) 18336 14669 12224
0.0023 0.0036 0.0043
1200 RPM 84.3 105.6 105.1
Profile Fz
0.25 1.5 Feed
(960-1440) 2 flutes (IPM)
PLASTICS N/A Feed 168.7 211.2 210.3
Polycarbonate, PVC, 3 flutes (IPM) 14669 11735 9779
Polypropylene 960 RPM 0.0020 0.0031 0.0038
58.7 72.8 74.3
Slot Fz
1 1 Feed
(768-1152) 2 flutes (IPM)
Feed 117.4 145.5 148.6
3 flutes (IPM)
END MILLS END MILLS 143
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