Solid carbide plunge mill

Solid carbide plunge mill

July 17, 2020

Mikron Tool
Tooling/Cutting Turning/Milling

Mikron Tool is expanding its milling cutter program with the launch a new version of the plunge-mill CrazyMill Cool P&S, now suitable for even deeper machining operations.

Like its successful “short” predecessor, it’s characterized by the ability to plunge (drill) vertically into the material, mill slots or pockets into solid material in smallest spaces and concluding the milling with a finishing operation. While the milling depth in the short version (2.5 x d) was based on the machining of keyways (as found on the drive shafts of engines), the aim now is to be able to mill the deepest possible slots and pockets with a single tool and to reach more distant machining areas within a workpiece.

The new version of the solid carbide plunge mill is based on the same technology as the short version. It’s now possible to plunge perpendicularly into the material and reach the maximum milling depth of 5 x d in a few steps. Despite its length, the milling cutter is extremely stable and at the same time impresses with its cutting speeds and chip removal rates as well as a long tool life and surface quality – all from a milling diameter of one millimeter (.039").

The cutting-edge geometry enables process stable and vibration-free drilling (vertical plunging) even at a depth of 5 x d. This not only prevents the cutting edges from breaking out – one of the central difficulties when drilling with a milling cutter – but also ensures excellent surface quality and longer tool life.

Good chip removal plays an even more important role in this version at this depth. There is a higher risk that chips remain in the milling zone and are broken up several times and thus damage both the milling cutter and the milled surface. The special cutting-edge geometry with extended chip area provides a remedy, ensuring perfect lateral chip removal during plunging and milling cutter stability even during deep milling. The integrated coolant ducts in the shank with massive coolant flow ensure efficient chip evacuation even from tight or angled spaces of deep pockets or slots.

CrazyMill Cool P&S is available in diameters from 1mm to 8mm for a maximum milling depth of 5 x d.