Seco Tools’ Jabro JHF180 MEGA-64 solid carbide end mill series is suited for machining hardened steels ranging from 48 to 62 HRC. The end mill features a rigid 0.9-degree tapered neck design that reduces tool deflection, enables deep cavity milling and improves surface finish, the company says. The flute cavity design and angle on the back of the tooth guide and eject the chips away from the cutting edge. It also features a wear-resistant MEGA-64 AlTiN coating with an 8-percent carbide substrate.
The end mill is available in diameters ranging from 2 to 16 mm with reach options ranging from 2× to 7× diameter. It is equipped with three, four or five flutes, depending on the style. The end mill range is suited for high-feed milling applications, including face milling, slotting, ramping, helical interpolation, ramping and Z-level machining.
The company’s high-feed milling strategy is based on transferring cutting forces from the radial direction to axial, which reduces the risk for vibrations and stabilizes machining. Small depths of cut combined with high table feeds produce a thinner chip that carries heat away from the cutting edge and reduces cutting forces, the company says. This approach reduces heat generation to extend tool life and increases the metal removal rate.
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