Kennametal’s New Ball Nose End Mill for Productivity in 3D Milling

Kennametal Inc., expands its HARVI™ I TE series, with HARVI I TE four-flute ball nose end mill. Designed for highly productive 3D roughing and finishing operations, it delivers reduced machining cost through maximum metal removal in a wide variety of materials. The solid carbide end mill features an innovative proprietary relief, in the most critical area of the ball nose section, a wavy contour shapes the rippled relief which provides better coolant flow into the cutting zone.

This relief further enables higher feeds and speeds as well as increased depth of cuts by advanced vibration damping and lower cutting forces. The relief changes its shape and becomes into the eccentric faceted relief, on the outer diameter, which provides exceptional edge strength, geometric accuracy, lower cutting forces and makes this end mill series very versatile. Additional geometry advancements of the square end styles have also been engineered into this new solid carbide, which includes a twisted end mill, chip gashing, and a variable helix angle.

The ball nose end mill is available in two different lengths, both with a diameter range 2-20 mm (1/16" to 1"). The regular (inch non-necked, metric with neck) length is the first choice for 3D copy milling operations, while the long version provides ample length-of-cut (up to 4sD) for many applications, including shoulder milling when wall and floor finishing is required.

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