MAYDOWN TRIPLICUT HIGH SPEED STEEL CUTTERS RECOMMENDED SPEEDS AND FEEDS Cutters from page F2 |
CUTTER DIAMETER | RECOMMENDED FEED PER TOOTH | 35 ton tensile stainless steel BHN No 155 | 45-50 T/T medium steel BHN No 206-226 | 55-60 T/T tough steel BHN No 246-266 | 60 T/T high carbon high chrome BHN No 267 |
Nimonic 90 BHN No 225-300 |
35 T/T grey cast iron, phos. bronze BHN No 155 |
SURFACE SPEED m/min | 16 | 20 | 18 | 12 | 10 | 30 | |||||||
mm | mm | rpm | mm/m | rpm | mm/m | rpm | mm/m | rpm | mm/m | rpm | mm/m | rpm | mm/m |
6 | 0.013 - 0.020 | 800 | 54 | 1000 | 76 | 900 | 140 | 600 | 32 | 490 | 28.5 | 1500 | 89 |
8 | 0.020 - 0.035 | 600 | 57 | 800 | 89 | 680 | 133 | 450 | 38 | 370 | 28.5 | 1100 | 89 |
10 | 0.038 - 0.076 | 500 | 63.5 | 650 | 89 | 550 | 114 | 350 | 38 | 290 | 25 | 900 | 102 |
12 | 0.051 - 0.076 | 400 | 63.5 | 550 | 114 | 450 | 114 | 300 | 44 | 250 | 32 | 750 | 114 |
14 | 0.051 - 0.076 | 350 | 76 | 450 | 114 | 400 | 102 | 250 | 50 | 200 | 32 | 650 | 140 |
16 | 0.063 - 0.096 | 300 | 76 | 400 | 117 | 350 | 89 | 220 | 50 | 200 | 38 | 550 | 140 |
18 | 0.076 - 0.102 | 270 | 70 | 350 | 114 | 300 | 89 | 200 | 44 | 160 | 38 | 500 | 127 |
20 | 0.076 - 0.102 | 250 | 63.5 | 320 | 108 | 270 | 82 | 175 | 44 | 150 | 38 | 450 | 120 |
22 | 0.076 - 0.124 | 220 | 57 | 300 | 102 | 250 | 76 | 160 | 44 | 140 | 32 | 400 | 120 |
24 | 0.076 - 0.127 | 200 | 57 | 270 | 102 | 225 | 76 | 150 | 44 | 120 | 32 | 370 | 120 |
25 | 0.094 - 0.127 | 200 | 57 | 250 | 95 | 200 | 70 | 140 | 44 | 120 | 32 | 350 | 120 |
26 | 0.099 - 0.127 | 190 | 57 | 250 | 95 | 200 | 70 | 130 | 44 | 100 | 32 | 350 | 127 |
28 | 0.102 - 0.127 | 175 | 57 | 225 | 89 | 200 | 70 | 125 | 38 | 100 | 32 | 320 | 127 |
30 | 0.102 - 0.137 | 160 | 50 | 200 | 82 | 170 | 63.5 | 120 | 38 | 100 | 32 | 300 | 127 |
32 | 0.102 - 0.139 | 150 | 50 | 200 | 82 | 170 | 63.5 | 100 | 38 | 90 | 32 | 275 | 108 |
35 | 0.124 - 0.139 | 150 | 50 | 200 | 76 | 150 | 63.5 | 100 | 38 | 90 | 32 | 250 | 108 |
38 | 0.132 - 0.139 | 130 | 47 | 170 | 76 | 140 | 63.5 | 90 | 32 | 80 | 32 | 250 | 102 |
40 | 0.139 - 0.162 | 130 | 47 | 160 | 76 | 130 | 63.5 | 90 | 32 | 76 | 32 | 220 | 102 |
45 | 0.139 - 0.162 | 110 | 44 | 140 | 70 | 125 | 57 | 75 | 28.5 | 65 | 25 | 200 | 102 |
50 | 0.139 - 0.167 | 100 | 41 | 125 | 63.5 | 100 | 50 | 75 | 25 | 60 | 25 | 200 | 95 |
SURFACE SPEED ft/min | 52 | 65 | 58 | 39 | 32 | 100 | |||||||
ins | ins | rpm | ipm | rpm | ipm | rpm | ipm | rpm | mm/m | rpm | ipm | rpm | ipm |
1/4 | 0.0005 - 0.0008 | 800 | 2.1/8 | 1000 | 3 | 900 | 5.1/2 | 600 | 1.1/4 | 490 | 1.1/8 | 1500 | 3.1/2 |
5/16 | 0.0008 - 0.0014 | 600 | 2.1/4 | 800 | 3.1/2 | 680 | 5.1/4 | 450 | 1.1/2 | 370 | 1.1/8 | 1100 | 3.1/2 |
3/8 | 0.0015 - 0.003 | 500 | 2.1/2 | 650 | 3.1/2 | 550 | 4.1/2 | 350 | 1.1/2 | 290 | 1 | 900 | 4 |
1/2 | 0.002 - 0.003 | 400 | 2.1/2 | 550 | 4.1/2 | 450 | 4.1/2 | 300 | 1.3/4 | 250 | 1.1/4 | 750 | 4.1/2 |
9/16 | 0.002 - 0.003 | 350 | 3 | 450 | 4.1/2 | 400 | 4 | 250 | 2 | 200 | 1.1/4 | 650 | 5.1/2 |
5/8 | 0.0025 - 0.0038 | 300 | 3 | 400 | 4.5/8 | 350 | 3.1/2 | 220 | 2 | 200 | 1.1/2 | 550 | 5.1/2 |
3/4 | 0.0008 - 0.0014 | 250 | 2.1/2 | 320 | 4.1/4 | 270 | 3.1/4 | 175 | 1.3/4 | 150 | 1.1/2 | 450 | 4.3/4 |
7/8 | 0.003 - 0.004 | 220 | 2.1/4 | 300 | 4 | 250 | 3 | 160 | 1.3/4 | 140 | 1.1/4 | 400 | 4.3/4 |
1 | 0.0037 - 0.005 | 200 | 2.1/4 | 250 | 3.3/4 | 200 | 2.3/4 | 140 | 1.3/4 | 120 | 1.1/4 | 350 | 4.3/4 |
1.1/4 | 0.004 - 0.0055 | 150 | 2 | 200 | 3.1/4 | 170 | 2.1/2 | 100 | 1.1/2 | 90 | 1.1/4 | 275 | 4.1/4 |
1.1/2 | 0.0052 - 0.0062 | 130 | 1.7/8 | 170 | 3 | 140 | 2.1/2 | 90 | 1.1/4 | 80 | 1.1/4 | 250 | 4 |
1.3/4 | 0.0055 - 0.0062 | 110 | 1.3/4 | 140 | 2.3/4 | 125 | 2.1/4 | 75 | 1.1/8 | 65 | 1 | 200 | 4 |
2 | 0.0055 - 0.0066 | 100 | 1.5/8 | 125 | 2.1/2 | 100 | 2 | 75 | 1 | 60 | 1 | 200 | 3.3/4 |
The recommended speeds and feeds apply when the machinery used is in GOOD CONDITION and the work piece is held rigid. The speeds and feeds are also based on the depth of cut being half the diameter of the cutter. |