Square Carbide End Mill NDN (standard length)D1 Ø11 mm × D2 Ø12 mm × L1 30 mm × L 75 mm × Z4
- D1 — Cutting diameter
- Ø11mm
- D2 — Shank diameter
- Ø12mm
- L1 — Flute length
- 30mm
- L — Overall length
- 75mm
- Z — Number of flutes
- 4
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Starting cutting values for FZ.NDN1104
Calculated for a Ø11 mm cutting diameter and 4 flutes. Radial engagement is taken as ae = 0.5×D and axial depth of cut as ap = 1×D. Values assume a carbide tool and medium duty conditions; machine rigidity and workholding change the result. These are calculated reference values. They change considerably with the machine, tool holder, clamping and the result you need; applying them remains the responsibility of the user.
| Workpiece material | Vc (m/min) | n (rpm) | fz (mm/tooth) | vf (mm/min) | Suggested coating |
|---|---|---|---|---|---|
| Alaşımlı çelik (42CrMo4) | 115 | 3,328 | 0.072 | 952 | TiAlN, AlTiN |
| Ostenitik paslanmaz (304/316) | 85 | 2,460 | 0.057 | 561 | AlCrN, AlTiN |
| Alüminyum, dövme (6061/7075) | 415 | 12,000 | 0.135 | 6,480 | Kaplamasız cilalı, DLC |
| Sertleştirilmiş çelik 45–55 HRC | 85 | 2,460 | 0.035 | 344 | nACo/AlTiSiN, AlCrN |
About this size
- Square end mill; used for side milling, slotting and square shoulders. The cutting corner is sharp, so stress concentrates there and edge chipping usually starts at the corner.
- 11 mm is the general purpose range. Spindle power is rarely the limit; the limit is usually the rigidity of the clamping and the holder.
- Length of cut to diameter ratio 2.7; standard configuration. At full engagement deflection becomes measurable and an allowance should be left on the side wall.
- 4 flutes. Table feed is directly proportional to flute count (vf = n x fz x z); when flute count changes, feed per tooth is held constant and table feed is recalculated.
These notes are derived from the geometry and ratios of this size and are general in nature. Machine, holder, clamping and coolant conditions change the outcome considerably.
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