Page 28 - Cobra-Carbide-2020-Catalog

HIGH SHEAR

3 Flute Endmill

TECHNICAL DATA ENDMILLS

MICRO GRAIN SOLID CARBIDE
SPEEDS & FEEDS - HIGH PERFORMANCE ENDMILLS
3 FLUTE HIGH SHEAR ENDMILLS

Cutting Speed Cutting Speed
Material Group Material Type
(Vc-m/min) High Shear (SFM) High Shear
Steel Structural Steel 84-107 274 - 350
Free Cutting Steel 84-107 274 - 350
Unalloyed Heat Treatable Steel 75 - 109 245 - 356
Unalloyed Case Hardened Steel 75 - 90 245 - 294
Alloyed Case Hardened Steel 75 - 90 245 - 294
Nitriding Steel 75 - 90 245 - 294
Acid Resistant / Stainless Steel, Sulphured 69 - 84 225 - 274
Stainless Steel Austenitic Steel, Martensitic
High Tensile Steel Low Carbon Steel 100-114 327 - 373
Medium Carbon Steel 84- 107 274 - 350
Alloyed Heat Treatable Steel 75-90 245 - 294
Tool Steel 84-107 274 - 350

75-90
245 - 294
High Speed Steel
ENDMILL Cast Materials Spheroidal Graphite & Malleable CI 100-114 245 - 294
Spring Steel
75 - 90
327 - 373
Cast Iron
327 - 373
100-114
Chilled CI 84-107 274 - 350
Aluminium & Aluminium 84 - 107 274 - 350
Aluminium Alloys Al Wrought Alloys 84 - 107 274 - 350
Al Cast Alloys < 10%Si 84 - 107 274 - 350
Al Cast Alloys > 10%Si 84 - 107 274 - 350
Special Alloys Special Alloys ------ ------
Ti Alloys ------ ------
Non ferrous Metals Copper Low Alloyed 130 - 160 425 - 523
Brass 130 - 160 425 - 523

Bronze 130 - 160 425 - 523
Plastics Duro Plastics ------ ------
Thermoplastics ------ ------
Magnesium Alloys Mg Alloys 84 - 107 274 - 350
Hardened Steel Die & Mould
(45-65 HRC)
NOTE: All the parameters are taken for closed slot & for 1XD(depth). For open slot increase speed by 10% & for depth more
than 1XD decrease speed by 10%

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