Machinery's Handbook, 31st Edition
1106
SPEEDS AND FEEDS FOR TURNING Table 7. Cutting Speeds and Feeds for Turning Titanium and Titanium Alloys
Tool Material
HSS
Uncoated Carbide (Tough)
f = feed (0.001 in/rev), s = speed (ft/min) Metric Units: f 3 25.4 = mm/rev, s 3 0.3048 = m/min Opt. Avg.
Brinell Hardness Number
Speed (fpm)
Material
Commercially Pure and Low Alloyed
f s f s f s
28 55 28 50 20 75
13 190 13 170 10 210
99.5Ti, 99.5Ti-0.15Pd
110-150 100-105
99.1Ti, 99.2Ti, 99.2Ti-0.15Pd, 98.9Ti-0.8Ni-0.3Mo
180-240 85-90
99.0 Ti
250-275
70
Alpha Alloys and Alpha-Beta Alloys
5Al-2.5Sn, 8Mn, 2Al-11Sn-5Zr- 1Mo, 4Al-3Mo-1V, 5Al-6Sn-2Zr- 1Mo, 6Al-2Sn-4Zr-2Mo, 6Al-2Sn- 4Zr-6Mo, 6Al-2Sn-4Zr-2Mo-0.25Si
300-350
50
310-350 320-370 320-380
40 30 20
6Al-4V
6Al-6V-2Sn, Al-4Mo,
f s
17 95
8 250
8V-5Fe-IAl
6Al-4V, 6Al-2Sn-4Zr-2Mo, 6Al-2Sn-4Zr-6Mo, 6Al-2Sn-4Zr-2Mo-0.25Si
320-380
40
375-420 375-440
20
4Al-3Mo-1V, 6Al-6V-2Sn, 7Al-4Mo
20 Beta Alloys
I Al-8V-5Fe
275-350 375-440
25
13V-11Cr-3Al, 8Mo-8V-2Fe-3Al, 3Al-8V-6Cr-4Mo-4Zr, 11.5Mo-6Zr-4.5Sn
f s
17 55
8 150
{
20 The speed recommendations for turning with HSS (high-speed steel) tools may be used as starting speeds for milling titanium alloys, using Table 15a to estimate the feed required. Speeds for HSS (high-speed steel) tools are based on a feed of 0.012 inch/rev and a depth of cut of 0.125 inch; use Table 5c to adjust the given speeds for other feeds and depths of cut. The combined feed/ speed data in the remaining columns are based on a depth of cut of 0.1 inch, lead angle of 15 degrees, and nose radius of 3 ∕ 64 inch. Use Table 5a to adjust given speeds for other feeds, depths of cut, and lead angles; use Table 5b to adjust given speeds for increased tool life up to 180 minutes. Examples are given in the text. The combined feed/speed data in this table are based on tool grades (identified in Table 16) as follows: uncoated carbide, 15. Table 8. Cutting Speeds and Feeds for Turning Light Metals
Tool Material HSS Uncoated Carbide (Tough) Polycrystalline Diamond
f = feed (0.001 in/rev), s = speed (ft/min) Metric: f 3 25.4 = mm/rev, s 3 0.3048 = m/min Opt. Avg. Opt. Avg.
Material Description
Material Condition
Speed (fpm)
All wrought and cast magnesium alloys All wrought aluminum alloys, including 6061-T651, 5000, 6000, and 7000 series All aluminum sand and permanent mold casting alloys
A, CD, ST, and A 800
CD
600
f s ST and A 500 750 ST and A 600 Aluminum Die-Casting Alloys AC
36 2820
17 4570
f s f s f s f s
36 865
17 1280 11 2760
11 5890 a 8 4765
8 8270 4 5755
Alloys 308.0 and 319.0
— —
AC
80
24 2010
Alloys 390.0 and 392.0
ST and A 60 — — ST and A 100 AC 125
Alloy 413
32 430 36 630
15 720
10 5085 11 7560
5 6570 6 9930
All other aluminum die-casting alloys including alloys 360.0 and 380.0
17 1060
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