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CoroMill® 390

Versatile shoulder milling cutters with ramping capability for mixed production

Instructions

Application guides

Application check list and hints

What to consider when performing a shoulder milling operation? Find some useful tips and tricks here.

How to choose the right pitch

When choosing the most suitable number of effective cutting edges, zc, for the operation, it is essential to consider the pitch (distance between the cutting edges).

Cutter position

Each time a milling edge enters a cut, it is subjected to a shock load. The right type of contact between edge and material at the entry and also at the exit of a cut must be considered for successful milling.​

Recommendations

​First choice geometry and grade

  • M-PM, M-KM, M-MM

    • First choice for most applications

  • E-MM

    • Optimized geometry for ISO M

  • E-PL, E-KL, E-ML, E-NL

    • Sharp and positive geometries used as problem solvers for applications which are sensitive in terms of cutting force or vibration, or when there is a need for high surface quality or high cutter accuracy

 

 

 

 

 

 

 

 

 

 

Cutters for dedicated applications

  • Oversized cutters enhance the accessibility and provide natural clearance to tight fixtures

  • Cutters with integrated Coromant Capto® coupling and adaptors provide the optimal rigidity for use on extended tool assemblies

  • Silent Tools™ vibration damping for increased metal removal and improved surface finish, when using slender tools

  • Turn milling, roughing and finishing, using one or more dedicated wiper inserts available in size 11 and 18 and radius 0.8 mm and 1.6 mm

  • Cutters with size 07 inserts in dimensions specifically designed for key slots with a tool diameter 0.3 mm (0.012 inch) smaller than the slot width

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