Page 384 - Carmex - Metric Catalog 2021

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Mill-Thread Technical Section

Cutting Data

MTH type

MT11 Sub-Micron Grade with advanced PVD triple coating.
Cutting Feed mm/tooth
Hardness
ISO Materials Speed Cutting Diameter = D
HRc
m/min ø2.5 ø3 ø4 ø5 ø6 ø7 ø8 ø9 ø10
Nickel Alloys, Titanium Alloys
S 20-50 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.04
and High Temp. Alloys
45 - 50 70 - 80 0.02 0.03 0.03 0.04 0.04 0.05 0.05 0.06 0.07
Hardened Steels
H 51 - 55 60 - 70 0.01 0.02 0.02 0.03 0.03 0.04 0.04 0.05 0.06
Cast Iron
56 - 62 40 - 50 0.005 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.05
For cutters with long cutting length reduce feed rate by 40%

Positioning

Thread Milling

Chamfering

B12-22