Page 300 - THREADING CATALOG

USER GUIDE
THREAD MILLING Cutting Conditions

Recommended initial cutting conditions are shown in the tables below.
In any case the better to use our program MillThread Advisor for correct process and
cutting conditions reconsiderations (https://www.iscar.com/mts/ )
Machining Data for Solid Carbide Threading Endmills with Small
Diameter, Short Solid Carbide Thread Mills

ISO
Ø12
Ø6
Ø9
Ø8
Ø7
Ø2
m/min
Materials
Ø3
Ø5
Ø4
low & medium Cutting Speed, Ø1.5 0.05 0.07 0.09 Feed mm/tooth for Diameter (mm) Ø10 0.17 Ø14 Ø15
0.13
0.16
0.05
0.18
60-120
0.11
0.15
0.18
0.14
0.16
carbon steels
high carbon
P steels 60-90 0.04 0.05 0.06 0.08 0.09 0.1 0.12 0.13 0.14 0.14 0.16 0.17 0.18
alloy steels, 50-80 0.04 0.04 0.05 0.05 0.06 0.07 0.07 0.08 0.09 0.1 0.12 0.13 0.14
treated steels
cast steels 70-90 0.04 0.04 0.05 0.05 0.06 0.07 0.07 0.08 0.09 0.1 0.12 0.13 0.14
M stainless steels 60-90 0.03 0.03 0.04 0.05 0.06 0.06 0.07 0.08 0.09 0.1 0.11 0.12 0.13
nickel alloys,
S 20-40 0.03 0.03 0.04 0.04 0.05 0.06 0.06 0.06 0.07 0.07 0.07 0.08 0.08
titanium alloys
K cast iron 40-80 0.05 0.05 0.07 0.09 0.11 0.13 0.14 0.15 0.16 0.16 0.17 0.18 0.18
aluminum 80-150 0.05 0.05 0.07 0.09 0.11 0.13 0.14 0.15 0.16 0.16 0.17 0.18 0.18
N synthetics,
duroplastics, 50-200 0.1 0.11 0.12 0.14 0.16 0.18 0.19 0.19 0.19 0.19 0.19 0.2 0.2
thermoplastics
Cutting Speed, Feed (inch/tooth) for Diameter (inch)
ISO Materials ft/min Ø.06 Ø.08 Ø.12 Ø.16 Ø.20 Ø.24 Ø.28 Ø.31 Ø.35 Ø.39 Ø.47 Ø.55 Ø.59
low & medium 200-390 .0018 .0021 .0028 .0035 .0043 .0050 .0057 .0060 .0062 .0064 .0067 .0070 .0071
carbon steels
high carbon
P steels 200-300 .0016 .0019 .0024 .0030 .0035 .0041 .0046 .0050 .0054 .0057 .0062 .0067 .0069
alloy steels, 160-260 .0015 .0017 .0019 .0021 .0024 .0026 .0028 .0033 .0037 .0041 .0047 .0052 .0055
treated steels
cast steels 230-300 .0015 .0017 .0019 .0021 .0024 .0026 .0028 .0033 .0037 .0041 .0047 .0052 .0055
M stainless steels 200-300 .0011 .0013 .0016 .0019 .0022 .0025 .0026 .0031 .0035 .0038 .0044 .0049 .0051
nickel alloys,
S 70-130 .0011 .0013 .0015 .0017 .0020 .0022 .0024 .0025 .0026 .0027 .0029 .0031 .0031
titanium alloys
K cast iron 130-260 .0018 .0021 .0028 .0035 .0043 .0050 .0057 .0060 .0062 .0064 .0067 .0070 .0071
aluminum 260-490 .0018 .0021 .0028 .0035 .0043 .0050 .0057 .0060 .0062 .0064 .0067 .0070 .0071
synthetics,
N
duroplastics, 160-660 .0038 .0042 .0049 .0056 .0063 .0070 .0073 .0074 .0075 .0075 .0077 .0078 .0078
thermoplastics
Machining Data for Solid Carbide Thread Mills for Small Internal Threads in Hard Materials
Hardness Cutting Speed Feed mm/tooth for Cutting Diameter (mm)
ISO Material HRC m/min 1.5 2 3 4 5 6 7 8 9
45-50 60-70 0.04 0.04 0.05 0.05 0.06 0.06 0.07 0.07 0.08
H hardened 51-55 50-60 0.03 0.03 0.04 0.04 0.05 0.05 0.06 0.06 0.07
steels
56-62 40-50 0.02 0.02 0.03 0.03 0.04 0.04 0.05 0.05 0.06
Hardness Cutting Feed (IPT) for Cutting Diameter (D)
ISO Material HRc Speed SFM .06 .08 .12 .16 .2 .24 .28 .31 .35
45-50 200-230 .0016 .0016 .002 .002 .0024 .0024 .0028 .0028 .0031
hardened
H 51-55 160-200 .0012 .0012 .0016 .0016 .002 .002 .0024 .0024 .0028
steels
56-62 130-160 .0008 .0008 .0012 .0012 .0016 .0016 .002 .002 .0024

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