For Machines Mfg. Since 8/09 | O P E R A T I O N | Model SB1019 |
Blade Speed Chart
The chart in Figure 24 offers blade speed guidelines for various metals, given in feet per minute (FPM) and meters per minute (M/Min). Choose the closest available speed on the machine, then adjust the feed rate as necessary, using the Chip Inspection Chart as a guide.
Material | Speed FPM | Material | Speed FPM | Material | Speed FPM | Material | Speed FPM | |
(M/Min) | (M/Min) | (M/Min) | (M/Min) | |||||
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Carbon | 196~354 | Tool Steel | 203 | Alloy | 111~321 | Free Machining | 150~203 | |
Steel | (60) (108) | (62) | Steel | (34) (98) | Stainless Steel | (46) (62) | ||
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Angle | 180~220 | 75~118 | Mold Steel | 246 | Gray | 108~225 | ||
Steel | (54) (67) | Tool Steel | (25) (36) | (75) | Cast Iron | (33) (75) | ||
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Thin | 180~220 | 95~213 | Water | 242 | Ductile | 65~85 | ||
Tube | (54) (67) | Tool Steel | (29) (65) | Hardened | (75) | Austenitic | (20) (26) | |
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Aluminum | 220~534 | 203 | Stainless | 85 | Malleable | 321 | ||
Alloy | (67) (163) | Tool Steel | (62) | Steel | (26) | Cast Iron | (98) | |
Copper | 229~482 | 203~213 | CR Stainless | Plastics | 220 | |||
Alloy | (70) (147) | Tool Steel | (62) (65) | Steel | (26) (62) | (67) | ||
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Figure 24. Dry cutting blade speed chart.
Chip Inspection Chart
The best method for choosing the cutting speed and feed rate for a cutting operation is to inspect the chips created by the cut. Refer to the chip inspection chart below to evaluate chip characteristics and determine whether to adjust feed rate/pressure, blade speed, or both.
Chip
Appearance
Chip
Description
Chip
Color
Blade Speed
Feed Rate/
Pressure
Other
Actions
| Thin & Curled | Silver | Good | Good |
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| Hard, Thick & Short | Brown or Blue | Increase | Decrease |
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| Hard, Strong & | Brown or Blue | Increase | Decrease |
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| Thick |
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| Hard, Strong, | Silver or Light | Good | Decrease | Check Blade |
| Curled & Thick | Brown | Slightly | Pitch | |
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| Hard, Coiled & Thin | Silver | Increase | Decrease | Check Blade |
| Pitch | ||||
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| Straight & Thin | Silver | Good | Increase |
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| Powdery | Silver | Decrease | Increase |
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| Coiled, Tight & Thin | Silver | Good | Decrease | Check Blade |
| Pitch | ||||
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Figure 25. Chip inspection chart.
