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High-Feed Milling Parameters for Grade 5 Titanium

High-feed roughing milling parameters for Ti-6Al-4V titanium.

cutting parameters
Cited (no URL)
Source: Empirical Testing Seco Tools
PropertyValueUnitNotes
Speed (25mm cutter)150-200SFMHigh-feed roughing, Seco Tools
Speed (32mm cutter)150-200SFM
Speed (40mm cutter)140-180SFM
Feed (25mm cutter)0.020-0.040IPT
Feed (32mm cutter)0.025-0.050IPT
Feed (40mm cutter)0.030-0.060IPT
Depth of Cut0.040-0.080inAll cutter sizes

High-Feed Milling

Cutter Dia Speed (SFM) Feed (IPT) DOC (in) MRR
25 mm 150-200 0.020-0.040 0.040-0.080 5-10 in³/min
32 mm 150-200 0.025-0.050 0.040-0.080 8-15 in³/min
40 mm 140-180 0.030-0.060 0.040-0.080 10-20 in³/min

Evidence Basis

Based on empirical high-feed roughing data from Seco Tools (tooling manufacturer) application testing. These are recommended starting parameters for Ti-6Al-4V; actual values depend on machine rigidity, coolant pressure, and toolpath.

Engineering Interpretation (titanium.blog)

(titanium.blog) High-feed milling trades radial engagement for high feed per tooth, keeping the tool in a shallow, chip-thinning engagement that moves heat out of the cut — well suited to titanium’s low thermal conductivity. Larger cutters run slightly slower SFM but sustain higher MRR. Treat as starting points, not absolutes.