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Mill - Thread Technical Section
Cutting Data
CMT type
MT7 Sub-Micron Grade with Titanium Aluminum Nitride multi-layer coating (ISO K10 - K20).
This is a general purpose grade, which can be used with all materials; it should be run at
medium to high cutting speeds.
Cutting Feed mm/tooth
ISO Materials Speed Cutting Diameter=D
m/min 10 12 18 25
Low and Medium Carbon Steels <0.55%C 60 - 120 0.16 0.17 0.20 0.22
P High CarbonSteels 0.55%C 60 - 90 0.14 0.16 0.20 0.22
Alloy Steels, Treated Steels 50 - 80 0.10 0.12 0.16 0.18
Stainless Steels - Free Cutting 70 - 100 0.10 0.11 0.15 0.17
M
Stainless Steels - Austenitic 60 - 90 0.10 0.11 0.15 0.17
Cast Steels 70 - 90 0.10 0.12 0.16 0.18
K Cast Iron 40 - 80 0.16 0.17 0.20 0.22
Aluminum 12%Si, Copper 100 - 200 0.16 0.17 0.20 0.22
N Aluminum >12% Si 60 - 140 0.10 0.11 0.16 0.18
Synthetics, Duroplastics, Thermoplastics 50 - 200 0.19 0.19 0.22 0.24
S Nickel Alloys, Titanium Alloys 20 - 40 0.07 0.07 0.10 0.12
Hardened Steel 45 - 50HRc 60 - 70 0.09 0.09 0.13 0.15
H
Hardened Steel 50 - 55HRc 50 - 60 0.08 0.08 0.12 0.14
Thread
Milling
start arc end
position entrance point
Thread arc
Milling exit
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