For Machines Mfg. Since 8/09 | O P E R A T I O N | Model SB1017 |
Blade Speed Chart
The blade speed chart in Figure 32 offers guidelines for various metals, given in feet per minute (FPM). Choose the closest available machine blade speed to the number shown in the chart. Refer to the Chip Inspection Chart that follows for recommendations on adjusting your operation based on the appearance of the chips produced
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 32. 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. These chips will be indicators of what is commonly referred to as the "chip load". Refer to the chip inspection chart below to evaluate chip characteristics and determine whether to adjust feed rate/pressure, blade speed, or both.
Chip | Chip | Chip | Blade | Feed Rate/ | Other |
Appearance | Description | Color | Speed | Pressure | Actions |
| Thin & Curled | Silver | Good | Good |
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| Hard, Thick & | Brown or Blue | Increase | Decrease |
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| Short |
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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 |
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| Straight & Thin | Silver | Good | Increase |
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| Powdery | Silver | Decrease | Increase |
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| Coiled, Tight & | Silver | Good | Decrease | Check Blade |
| Thin | Pitch | |||
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