Usage of drills, cutting conditions |
|
Work-piece material |
Drill Code |
Cooling |
Cutting Speed [m . min-1] |
D [mm] |
||||
2 |
4 |
6 |
9 |
12 |
||||
Recommended feed [mm . n-1] |
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Free-cutting steel 350-500 MPa | 06 | emulsion | 30-40 | 0,05 | 0,1 | 0,125 | 0,16 | 0,2 |
Free-cutting steel 500-900 MPa | 06 | emulsion | 25-30 | 0,04 | 0,08 | 0,1 | 0,125 | 0,16 |
Structural steel to 500 MPa | 06 | emulsion | 30-40 | 0,04 | 0,08 | 0,1 | 0,125 | 0,16 |
Structural steel to 500-900 MPa | 06 | emulsion | 20-25 | 0,032 | 0,063 | 0,08 | 0,1 | 0,125 |
Plain carbon case-hardening steel to 600 MPa | 06 | emulsion | 25-35 | 0,05 | 0,1 | 0,125 | 0,16 | 0,2 |
Aloy case-hardening steel 500-900 MPa | 06 | emulsion | 20-25 | 0,04 | 0,08 | 0,1 | 0,125 | 0,16 |
Aloy case-hardening steel 900-1200 MPa | 07 | emulsion, oil | 10-15 | 0,025 | 0,05 | 0,063 | 0,08 | 0,1 |
Nitralloy 700-900 MPa | 07 | emulsion | 15-20 | 0,032 | 0,063 | 0,08 | 0,1 | 0,125 |
Heat treated nitralloy 800-1250 MPa | 06 | emulsion, oil | 8-12 | 0,025 | 0,05 | 0,063 | 0,08 | 0,1 |
Mild steel for heat treatment 500-750 MPa | 06 | emulsion | 25-35 | 0,04 | 0,08 | 0,1 | 0,125 | 0,16 |
Plain carbon steel for heat treatment 700-1000 MPa | 07 | emulsion | 15-20 | 0,04 | 0,08 | 0,1 | 0,125 | 0,16 |
Alloy steel for heat treatment 900-1250 MPa | 07 | emulsion, oil | 10-15 | 0,032 | 0,063 | 0,08 | 0,1 | 0,125 |
Manganese steel with content above 10% Mn | 07 | dry oil 200-300°C |
3-6 | 0,02 | 0,04 | 0,063 | 0,08 | 0,1 |
Plain carbon tool steel 700-900 MPa | 07 | emulsion | 14-18 | 0,032 | 0,063 | 0,08 | 0,1 | 0,125 |
Alloy tool steel 850-1250 MPa | 07 | emulsion, oil | 8-12 | 0,025 | 0,05 | 0,063 | 0,08 | 0,1 |
Heat-resistant steel 450-600 MPa | 07 | oil | 15-20 | 0,032 | 0,063 | 0,08 | 0,1 | 0,125 |
Rustless steels | 07 | emulsion | 6-10 | 0,02 | 0,032 | 0,05 | 0,08 | 0,1 |
Alloys hasteloy, inconel, nimonic | 07 | oil | 3-6 | 0,02 | 0,04 | 0,063 | 0,08 | 0,125 |
Grey cast iron HB 180-240 | 06 | emulsion, compressed air | 30-40 | 0,05 | 0,1 | 0,125 | 0,16 | 0,2 |
Grey cast iron HB 240-300 | 06 | emulsion, compressed air | 20-30 | 0,05 | 0,1 | 0,125 | 0,16 | 0,2 |
Malleable cast iron HB 180-240 | 06 | compressed air | 20-30 | 0,05 | 0,1 | 0,125 | 0,16 | 0,2 |
Aluminium | 24 | emulsion | 50-80 | 0,05 | 0,1 | 0,125 | 0,16 | 0,2 |
Aluminium alloys with content to 10% Si and 180 MPa | 24 | emulsion | 40-65 | 0,063 | 0,125 | 0,16 | 0,2 | 0,25 |
Aluminium alloys with content above 10% Si and 150-250 MPa | 06 | emulsion | 30-50 | 0,063 | 0,125 | 0,16 | 0,2 | 0,25 |
Copper 200-400 MPa | 24 | emulsion, oil | 30-40 | 0,05 | 0,1 | 0,125 | 0,16 | 0,2 |
Fragile brass with short chip 350-550 MPa | 20 | emulsion, oil | 60-80 | 0,063 | 0,125 | 0,16 | 0,2 | 0,25 |
Tough brass with long chip 250-550 MPa | 24 | emulsion, oil | 30-50 | 0,063 | 0,1 | 0,125 | 0,16 | 0,2 |
Bronze 200-500 MPa | 24 | emulsion, oil | 20-40 | 0,05 | 0,08 | 0,125 | 0,16 | 0,2 |
Bronze 500-800 MPa | 06 | emulsion, oil | 15-30 | 0,05 | 0,08 | 0,125 | 0,16 | 0,2 |
Magnesium alloys - elektron | 20 | - | 60-100 | 0,08 | 0,125 | 0,016 | 0,02 | 0,25 |
Zinc, zinc alloys | 06 | emulsion | 35-45 | 0,05 | 0,1 | 0,125 | 0,16 | 0,2 |
Titanium alloys to 700 MPa | 07 | oil | 3-6 | 0,03 | 0,05 | 0,063 | 0,08 | 0,1 |
Titanium alloys to 700-1000 MPa | 7 | oil | 3-6 | 0,02 | 0,04 | 0,05 | 0,063 | 0,08 |
Silver | 6 | emulsion | 30-40 | 0,05 | 0,08 | 0,1 | 0,125 | 0,16 |
Duroplasts | 20 Vertex angle 90° |
compressed air | 10-20 | 0,04 | 0,08 | 0,1 | 0,125 | 0,16 |
Termoplasts | 24 | water, compressed air | 20-40 | 0,05 | 0,1 | 0,125 | 0,16 | 0,2 |
Perspex | 20 Vertex angle 90° |
water | 15-25 | 0,05 | 0,08 | 0,125 | 0,16 | 0,2 |
Laminated materials (paper, wood) along layer | 24 | compressed air | 15-25 | 0,05 | 0,08 | 0,125 | 0,16 | 0,2 |
Laminated materials (paper, wood) across layer | 20 Vertex angle 90° |
compressed air | 15-25 | 0,05 | 0,08 | 0,125 | 0,16 | 0,2 |
Hardened rubber | 20 Vertex angle 90° |
compressed air | 20-30 | 0,08 | 0,125 | 0,16 | 0,2 | 0,25 |
Slate, marble, graphit | 20 Vertex angle 90° |
compressed air | 3-6 | hand-feed | hand-feed | hand-feed | hand-feed | hand-feed |