AT-2
Speeds & Feeds
List 16640 - A Brand AT-2 List 16645 - A Brand AT-2
Cutting Speed (SFM)
Feed Rate (in/t)
Work Material
Low Carbon Steel Medium Carbon Steel High Carbon Steel
~C0.25%
115 - 180 260 - 525 260 - 525 200 - 400 115 - 250 115 - 215 115 - 180 115 - 330 115 - 330 115 - 330 115 - 330 115 - 330 115 - 330 115 - 330 115 - 330 115 - 330 115 - 330 115 - 330 115 - 330 115 - 330 115 - 180 115 - 180 115 - 330 115 - 330
0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028 0.0004 - 0.0028
C0.25%~0.45%
C0.45%~
Alloy Steel
4140, 4340, 8620
25-45 HRC 45-50 HRC 50-65 HRC
Hardened Steel
Stainless Steel
300-Series, 400-Series
Tool Steel Cast Steel Cast Iron
D2, H13, A6
- - - -
Ductile Cast Iron
Copper
Brass
B21, B36
Brass Casting
B62
Bronze
B124, B103, B159 6061, 7075, 2014
Aluminum
Aluminum Alloy Casting Magnesium Alloy Casting
- - -
Zinc Alloy Casting Titanium Alloy*
Ti-6Al-4V Inconel
Nickel Alloy*
Thermosetting Plastic
- -
Thermo Plastic
1. The tool is left-hand cutting - program the spindle for counterclockwise rotation. 2. The indicated speeds and feeds are for air blow cooling. 3. Please use water soluble coolant when machining aluminum materials. 4. When machining magnesium please refer to the coolant oil manufacturer’s specification for recommended oil. Please also properly dispose of the cutting chips to prevent fire hazards. 5. Please adjust the cutting conditions depending on the rigidity of the machine, tool holder, and workpiece clamping. 6. Tool vibration should be kept at a minimum level to ensure highest thread accuracy. 7. Select a higher feed rate for larger diameter tooling and a lower feed rate for smaller diameters. *Titanium and Nickel alloy parameters are only to be used for tools with internal coolant running water soluble coolant.
Threading Technical
790
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