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Dormer Pramet Offers Versatile Stainless Steel Insert Array

Dormer Pramet’s range of stainless steel cutters and inserts optimizes productivity on low-power machines, while also offering versatility for different cutting conditions and applications.

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Dormer Pramet says its stainless steel milling range increases productivity for face milling and offers versatility for different cutting conditions. Insert styles in this range include OEHT (octagonal), REHT (round) and XEHT (wiper), while the company’s S450E double positive 45-degree milling cutter enables customers to use the same cutter body with both octagonal inserts for face milling and round inserts for face or copy milling. The milling cutter’s design also supports internal coolant delivery.

The company recommends using this milling range on machines with limited power, saying the combination of the inserts and cutter delivers high metal removal rates at low cutting force and reduces chatter.

This combination features positive axial and radial face angles for good cutting action and directs chips away from the work-piece. The company also says the S450E performs well with fragile work pieces and unstable fixturing, that it is available in a variety of diameters and that it restricts stainless steel work hardening.

Dormer Pramet would like to draw particular attention to the OEHT (octagonal) insert’s use of eight cutting edges, which the company says is the highest number available for positive inserts, and its four sharp, positive geometries for various cutting conditions. These geometries include the MF geometry for finishing applications in stainless steel, mild carbon steel and non-ferrous metals; the MM geometry for machining stainless steel in medium cutting conditions; the M stabilized geometry for difficult cutting conditions in materials such as carbon steels and harder stainless steels; and the FA geometry for finishing and light-to-medium machining of non-ferrous materials. The company also says the new geometries offer reduced cutting forces and increased durability for machining with or without coolant.

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