Seco Tools' new face milling cutter Inserts double tool lifeClick image to enlarge

The new R220.88 face milling cutter family from Seco features inserts with eight cutting edges and optimized geometries that provide excellent tool life and reduced cutting forces, says the company.

The cutter body’s 88-degree lead angle allows for large depths of cut with smaller insert sizes, as compared to 45-degree lead angle face mills. Its design also allows the new cutter to machine closer to workpiece side walls as well as intricate part clamping workholding systems when necessary.

Designed for roughing and semi-finishing applications, the R220.88 is ideal for machining cast iron and steels in the general machining and automotive segments. The cutter body is made of Idun material, a corrosion resistant stainless steel that offers longevity and durability along with being environmentally friendly due to the elimination of the nickel coating process.

The cutter body is available in diameters ranging from 50 to 16 mm (2.00 to 6.00 in.) with the size 12 insert and 63 to 160 mm (3.00 to 6.00 in.) with the size 16 insert. Each diameter is offered with a standard pitch variant and a close-pitch variant to provide the best match to an application’s specific needs.

The size 12 R220.88 achieves a maximum depth of cut of 9 mm (0.35 in.), while size 16 reaches 13 mm (0.51 in.) maximum depth of cut. Right-hand versions of the cutter body are standard with left-hand versions available on special order, allowing integration into systems with dual spindles performing simultaneous milling operations.

The R220.88 is compatible with Seco’s SNMU inserts, which are secured with a center lock screw, eliminating the need for wedges to secure the insert in the pocket. The eight cutting edges on these inserts offer double the cutting edges over four-edged inserts to help reduce tooling costs.

With its neutral design, the SNMU insert can be applied in right-hand or left-hand milling applications. Available insert geometries include M10 and MD13 for size 12 and M10 and MD16 for size 16, with an insert grade offering that includes MK1500, MK2050, MP1500, MP2500, MS2500 and F40M. An integrated wiper flat ensures a good surface finish for semi-finishing applications, and optimized geometries for reduced cutting forces with the M10. The heavy edge protection with the MD13 and MD16 inserts are ideal for difficult face milling operations, such as interrupted cuts.

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