With the expanded Mill 16 platform, the portfolio “will fit any of your cast iron face-milling applications”, says the company. From fine pitch wedge-style cutters for highest productivity and very powerful machines to medium and coarse pitches screw-on cutters when horsepower is limited. From machining of small components to very large components.
The Mill 16’s new split case design meets large machining needs, with wedge-style cutter bodies ranging from 300 to 500 mm in diameter. And the largest split-case Mill 16 cutter body weighs only 20.4 kg, roughly one-third that of competing designs, but still able to rotate at up to 2,800 rpm (almost 15,000 sfm).
All cutters use the same innovative, multi-edged design insert, one that has 16 cutting edges and provides lowest cost per cutting edge.
On the cast iron finishing side, there’s the super positive KCFM – Kennametal Cast Iron Finishing Milling - with the new KBK50 full top PCBN (polycrystalline cubic boron nitride) grade. KCFM consistently achieves surface finishes of Ra 0.8 micron with peak to peak wave heights of 10 micron or less.
For customers that don’t want to have a full load of PCBN inserts in the cutter, combining the semi-finishing KY3500 silicon nitrate ceramic with KBK50 finishing wiper inserts is also a very productive, and cost-effective solution
And where fine finishing in rather unstable conditions is required, such as with weak workpiece clamping, limited spindle speed, long overhang or when tooling cost is the primary consideration, the answer is carbide grade KC514M. A TiAlN PVD coating that is both tough and wear resistant, it is designed for light to medium machining and can be used with or without cutting fluids.
