Skip to content
BreakingChips

Non-ferrous · ISO N

C110 copper speeds and feeds

Also: C11000, Cu-ETP, ETP copper

Starting points from the same engines as the calculators, with no tool or setup picked. The first number is where to start; the range is what the manufacturer charts allow. Open a calculator for your tool, machine and cut.

Draft data: researched from manufacturer charts, not yet reviewed by a machinist.

Machining notes

Half hard100 HB

Turning

No sourced turning speeds for copper alloys yet.

Milling, solid carbide end mill

Speed 600 (400–1,000) SFM · 183 m/min

Chip load per tooth, before chip thinning
Cutter ØIPTmm/tooth
1/8"0.00110.0010–0.00110.027
1/4"0.00210.0020–0.00220.053
1/2"0.00360.0030–0.00420.091
3/4"0.00630.0040–0.00850.159
1"0.00710.0050–0.00920.180

Drilling, Ø1/2" at 3×D

DrillSFMFeed, IPR
HSS13989–3000.00960.0070–0.0150
Cobalt20990–3000.00960.0070–0.0150
Solid carbide, through-coolant513230–8600.0060

Feeds scale with drill Ø (0.5" here): the drilling calculator sets them for yours.

Tapping

Cut tap
55 (30–80) SFM
Form tap
48 (30–90) SFM

Sources