A Solid carbide mills

Feed rate selecting table for profile machining with ball nose cutters and torus mills

Ry = R × {1-cos [arc sin(fr/2R)]}

P Ry: Theoretical values of surface quality B P: Feed rate R: Radius of the ball nose cutter or torus mill

RyFeedrate
R0,10,20,30,40,50,60,70,80,91,0
0,50,0030,0100,0230,0420,0670,100
1,00,0010,0050,0110,0200,0320,0460,0630,0830,107
1,50,0010,0030,0080,0130,0210,0300,0410,0540,0690,086
2,00,0010,0030,0060,0100,0150,0230,0310,0400,0510,064
2,50,0010,0020,0050,0080,0130,0180,0250,0320,0410,051
3,00,0010,0040,0070,0100,0150,0200,0270,0340,042
4,00,0010,0030,0050,0080,0110,0150,0200,0250,031
5,00,0010,0020,0040,0060,0090,0120,0160,0200,025
6,00,0020,0030,0050,0080,0100,0130,0170,021
8,00,0010,0030,0040,0060,0080,0100,0130,016
10,00,0010,0020,0030,0050,0060,0080,0100,013
12,50,0010,0020,0030,0040,0050,0060,0080,010
RyFeedrate
R1,11,21,31,41,51,61,71,81,92,0
0,5
1,0
1,50,104
2,00,0770,0920,109
2,50,0610,0730,0860,100
3,00,0510,0610,0710,0830,0950,109
4,00,0380,0450,0530,0620,0710,0810,0910,103
5,00,0300,0360,0420,0490,0570,0640,0730,0820,0910,101
6,00,0250,0300,0350,0410,0470,0540,0610,0680,0760,084
8,00,0190,0230,0260,0310,0350,0400,0450,0510,0570,063
10,00,0150,0180,0210,0250,0280,0320,0360,0410,0450,050
12,50,0120,0140,0170,0200,0230,0260,0290,0320,0360,040