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Feeds and speeds for Brass
Brass breaks into short chips and machines nicely. It is a favourite for signs and engravings. For example: Brass, copper.
The most common bits
| Bit | SpeedRPM | Feedmm/min | Plungemm/min | Depthmm | Chip loadmm |
|---|---|---|---|---|---|
| Multi-flute end mill Ø 3.175 mm3 flutes · ZrN coated | 10,000 | 290 | 60 | 0.25 | 0.01 |
| Multi-flute end mill Ø 6 mm3 flutes · ZrN coated | 10,000 | 450 | 90 | 0.5 | 0.015 |
| Engraving bit 20°, tip 0.1 mm | 10,000 | 60 | 30 | 0.05 | 0.006 |
| Engraving bit 30°, tip 0.2 mm | 10,000 | 60 | 30 | 0.05 | 0.006 |
| Twist drill Ø 3 mm | 10,000 | 90 | 90 | 6 | – |
Starting values without guarantee. Machine, spindle, clamping and bit condition all affect the right values.
All 45 bits for Brass
Multi-flute end mill
| Bit | SpeedRPM | Feedmm/min | Plungemm/min | Depthmm | Chip loadmm |
|---|---|---|---|---|---|
| Multi-flute end mill Ø 2 mm3 flutes · DLC coated | 10,000 | 180 | 40 | 0.15 | 0.006 |
| Multi-flute end mill Ø 3 mm3 flutes · ZrN coated | 10,000 | 270 | 50 | 0.25 | 0.009 |
| Multi-flute end mill Ø 3 mm4 flutes · TiAlN coated | 10,000 | 360 | 70 | 0.25 | 0.009 |
| Multi-flute end mill Ø 3.175 mm3 flutes · ZrN coated | 10,000 | 290 | 60 | 0.25 | 0.01 |
| Multi-flute end mill Ø 4 mm3 flutes · ZrN coated | 10,000 | 360 | 70 | 0.3 | 0.012 |
| Multi-flute end mill Ø 4 mm4 flutes · TiAlN coated | 10,000 | 480 | 100 | 0.3 | 0.012 |
| Multi-flute end mill Ø 5 mm3 flutes · ZrN coated | 10,000 | 450 | 90 | 0.4 | 0.015 |
| Multi-flute end mill Ø 6 mm3 flutes · DLC coated | 10,000 | 450 | 90 | 0.5 | 0.015 |
| Multi-flute end mill Ø 6 mm3 flutes · ZrN coated | 10,000 | 450 | 90 | 0.5 | 0.015 |
| Multi-flute end mill Ø 6 mm4 flutes · TiAlN coated | 10,000 | 600 | 120 | 0.5 | 0.015 |
| Multi-flute end mill Ø 8 mm3 flutes · ZrN coated | 10,000 | 450 | 90 | 0.65 | 0.015 |
Engraving bit
| Bit | SpeedRPM | Feedmm/min | Plungemm/min | Depthmm | Chip loadmm |
|---|---|---|---|---|---|
| Engraving bit 10°, tip 0.1 mm | 10,000 | 60 | 30 | 0.05 | 0.006 |
| Engraving bit 10°, tip 0.2 mm | 10,000 | 60 | 30 | 0.05 | 0.006 |
| Engraving bit 15°, tip 0.1 mm | 10,000 | 60 | 30 | 0.05 | 0.006 |
| Engraving bit 15°, tip 0.2 mm | 10,000 | 60 | 30 | 0.05 | 0.006 |
| Engraving bit 20°, tip 0.1 mm | 10,000 | 60 | 30 | 0.05 | 0.006 |
| Engraving bit 20°, tip 0.15 mm | 10,000 | 60 | 30 | 0.05 | 0.006 |
| Engraving bit 20°, tip 0.2 mm | 10,000 | 60 | 30 | 0.05 | 0.006 |
| Engraving bit 25°, tip 0.1 mm | 10,000 | 60 | 30 | 0.05 | 0.006 |
| Engraving bit 30°, tip 0.1 mm | 10,000 | 60 | 30 | 0.05 | 0.006 |
| Engraving bit 30°, tip 0.2 mm | 10,000 | 60 | 30 | 0.05 | 0.006 |
| Engraving bit 30°, tip 0.3 mm | 10,000 | 60 | 30 | 0.05 | 0.006 |
| Engraving bit 45°, tip 0.1 mm | 10,000 | 60 | 30 | 0.05 | 0.006 |
| Engraving bit 45°, tip 0.2 mm | 10,000 | 60 | 30 | 0.05 | 0.006 |
| Engraving bit 60°, tip 0.1 mm | 10,000 | 60 | 30 | 0.05 | 0.006 |
| Engraving bit 60°, tip 0.2 mm | 10,000 | 60 | 30 | 0.05 | 0.006 |
| Engraving bit 90°, tip 0.2 mm | 10,000 | 60 | 30 | 0.05 | 0.006 |
| Engraving bit 90°, tip 0.5 mm | 10,000 | 60 | 30 | 0.05 | 0.006 |
Twist drill
| Bit | SpeedRPM | Feedmm/min | Plungemm/min | Depthmm | Chip loadmm |
|---|---|---|---|---|---|
| Twist drill Ø 0.5 mm | 10,000 | 40 | 40 | 1 | – |
| Twist drill Ø 0.8 mm | 10,000 | 40 | 40 | 1.5 | – |
| Twist drill Ø 1 mm | 10,000 | 40 | 40 | 2 | – |
| Twist drill Ø 1.2 mm | 10,000 | 40 | 40 | 2.5 | – |
| Twist drill Ø 1.5 mm | 10,000 | 50 | 50 | 3 | – |
| Twist drill Ø 2 mm | 10,000 | 60 | 60 | 4 | – |
| Twist drill Ø 2.5 mm | 10,000 | 80 | 80 | 5 | – |
| Twist drill Ø 3 mm | 10,000 | 90 | 90 | 6 | – |
| Twist drill Ø 3.5 mm | 10,000 | 110 | 110 | 7 | – |
| Twist drill Ø 4 mm | 10,000 | 120 | 120 | 8 | – |
| Twist drill Ø 4.5 mm | 10,000 | 140 | 140 | 9 | – |
| Twist drill Ø 5 mm | 10,000 | 150 | 150 | 10 | – |
| Twist drill Ø 5.5 mm | 10,000 | 170 | 170 | 11 | – |
| Twist drill Ø 6 mm | 10,000 | 180 | 180 | 12 | – |
| Twist drill Ø 6.5 mm | 10,000 | 200 | 200 | 13 | – |
| Twist drill Ø 7 mm | 10,000 | 210 | 210 | 14 | – |
| Twist drill Ø 8 mm | 10,000 | 240 | 240 | 16 | – |
What matters with Brass
- Use sharp bits with a low helix angle, they do not pull themselves into the material.
- Brass usually needs no lubricant, the chips come off short and dry.
- Choose a small depth of cut, the material is harder than aluminium.
- Chips are hot and sharp: do not brush them away by hand, vacuum or use a brush.
The app applies the values
In CNC.myWerkzeug.de you choose the material and the bit, and the matching feeds and speeds are already in the toolpaths. You can save your own values per bit.