The new MaxiMill-Tangent from
Ceratizit is a tangential indexable insert milling cutter designed to offer enhanced durability when machining steel and cast iron components by simultaneously enabling stable and soft-cutting machining.
This capability is attributed to developers at Ceratizit prioritising a uniform chamfer profile across the entire length of the cutting edge of the precision-ground indexable inserts; and with a wide range of carriers and inserts with four usable cutting edges in sizes -09 and -13, there is a ‘versatile selection for different applications’.
The MaxiMill-Tangent has indexable inserts optimised for machining ISO P and ISO K materials. Moreover, it features a maximum infeed depth of 8mm for the -09 insert, while the larger model goes to 12mm. Also available with the MaxiMill-Tangent is the universal -M50 and -F50 chip grooves, and ‘increased cutting-edge stability thanks to a smaller radial clearance angle’.
There is also an integrated face-cutting edge, which offers advantages that include uniform material removal that results in a smoother component surface; and because the cutting forces are ‘distributed more evenly’, the load on both the tool and the machine are minimised. The MaxiMill-Tangent is available in three carrier variants — a shell-type milling cutter, a screw-in milling cutter, and ones with a straight shank — ranging in diameter from 25 to 125mm.
Tangential clampingCeratizit product manager Robert Frei said: “Compared to radial systems, tangential clamping provides extra space for significantly more indexable inserts on the milling cutter body, thus guaranteeing maximum cutting-edge density and efficiency; and to prevent any drop-offs in efficiency during tool changes, inserts can be rotated, turned and replaced quickly and easily.
“Thanks to the MaxiMill-Tangent’s stable design, high-performance four-edged indexable inserts, and tangential clamping, even components with interfering contours can now be machined easily and cost-efficiently.”
Comparing a MaxiMill-Tangent to a conventional corner and face milling system, Mr Frei said: “When machining a GGG-50 spheroidal graphite cast iron turbocharger component with a 63mm diameter cutter with six cutting edges, a 2mm infeed depth and an insert width of 35mm, the MaxiMill-Tangent produced 27 parts compared with a competitor’s 12.
Key to our cutter’s success lies in its optimum chip control on shoulder, corner and face milling — something attributed to its design and cooling channels. These features prevent chip jams, improve the surface quality of the component, and extend the service life of the tools.”