Starting cutting speed in m/min and sfm, feed in mm/rev and ipr, the carbide grade class and the setup by operation for EN AW-7075 (AlZn5.5MgCu). The numbers are the published N01 Aluminium (wrought) sub-group starting band; the designations are on the cross-reference page.
| Item | Value |
|---|---|
| ISO 513 group | N Non-ferrous |
| Sub-group | N01 Aluminium (wrought) |
| Sub-group hardness / condition | ~65 HB |
| Category | Aluminium (high strength) |
| EN / Werkstoffnummer | EN AW-7075 (AlZn5,5MgCu) · 3.4365 |
Hardness is the range published for the whole N01 Aluminium (wrought) sub-group on our material guide; the delivery condition of your EN AW-7075 may sit anywhere inside it or outside it.
| Condition | Vc m/min | Vc sfm | Feed mm/rev | Feed ipr |
|---|---|---|---|---|
| N01 Aluminium (wrought), ~65 HB | 300–1000 | 985–3280 | 0.05–0.30 | .002–.012 |
Sub-group starting values for carbide inserts, from N01 Aluminium (wrought). They describe the whole sub-group and are not tuned to EN AW-7075. sfm and ipr are converted from the metric values (1 m/min = 3.281 sfm, 25.4 mm = 1 in). The published band is per sub-group, not per operation; the table below gives the setup by operation. Convert Vc to spindle speed with the speeds & feeds calculator, and see the speeds & feeds guide for the ISO N group range.
| Operation | Geometry | Coating family | Coolant | First check |
|---|---|---|---|---|
| Roughing | Sharp, high positive rake, polished flute, open chipbreaker | Uncoated or DLC-coated fine-grain carbide; PCD for long runs | Coolant or MQL to flush chips | Chip evacuation: open chipbreaker, polished flutes |
| Finishing | Sharp, high positive rake, polished flute | Uncoated or DLC-coated carbide; PCD for abrasive alloys | Coolant or MQL | Built-up edge: raise feed per tooth, do not only raise speed |
| Interrupted cut | Sharp positive edge, open chipbreaker | Uncoated or DLC-coated carbide | Coolant or MQL | Chip load too low makes the edge rub instead of shear |
| Low rigidity / thin wall | Keen edge to shear rather than rub | Uncoated or DLC-coated carbide | Coolant or MQL | Feed per tooth against radial chip thinning |
Setup rows are the selection table of the N01 Aluminium (wrought) guide. They carry no speeds, so they do not change the starting band above.
Same sub-group, same starting band: EN AW-2024 · EN AW-5083 · EN AW-6061 · EN AW-6082 · EN AW-5754 · EN AW-2007
Uncoated or DLC-coated fine-grain carbide with high positive rake and polished flutes; PCD for long production runs or abrasive high-silicon alloys.
The P, M, K, N, S or H number inside a grade range describes what the grade is built for, not the workpiece sub-group number, and the two scales must not be matched to each other. We name no single grade here: none of our published sources ties a named grade to this alloy. Pick by ISO class, then compare what the makers publish on the ISO N grade list and in the grade chart.
EN AW-7075 (AlZn5,5MgCu), Werkstoffnummer 3.4365, US UNS A97075, JIS A7075. The full table, with the nearest-match flags, is on the EN AW-7075 / AlZn5.5MgCu cross-reference page.
The strongest common aluminium: stiff, slightly abrasive, superb chips in T6/T651. Watch residual-stress distortion on thin walls; the machining itself is the easy part.
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The published starting band for the N01 Aluminium (wrought) sub-group is 300–1000 m/min (985–3280 sfm) at 0.05–0.30 mm/rev (.002–.012 ipr). It is a starting band for the whole sub-group, not a value tuned to EN AW-7075, so confirm on a sample part and adjust for condition, tool and rigidity.
Uncoated or DLC-coated fine-grain carbide with high positive rake and polished flutes; PCD for long production runs or abrasive high-silicon alloys. Pick the grade by ISO class rather than by brand name, then confirm the exact grade for your condition. We name no single grade here because none of our published sources ties a named grade to this alloy.
EN AW-7075 (AlZn5,5MgCu) (Werkstoffnummer 3.4365); US: UNS A97075; JIS: A7075. Entries marked nearest are the closest commonly-cited counterpart, not a same-composition equivalent.
The advisor compares what the makers publish for your material and operation and shows the source behind each answer, or tells you it could not verify.