SpheroX Ball Nose End Mill

A key quality feature of the new SpheroX ball nose end milling tool is the DURO-SI coating specially developed for machining hardened steels. In combination with cutting edge conditioning, this significantly increases the tool’s performance capabilities. High feed rates with simultaneous high infeeds are no problem thanks to the four cutting edges. These four cutting edges, in combination with the variable helix, also ensure incomparably smooth running compared to double-edged tools. Reduced tool costs The DURO-SI coating has been specially developed for machining hard and high-hard materials. In addition to outstanding hardness, it features an incomparably high resis- tance to oxidation. This results in brilliant wear resistance in high-hard materials, which extends the service life of the tool and significantly reduces the associated tool costs. Compared to tools with conventional coatings, the SpheroX cutters can therefore be used at considerably higher temperatures, which means better cutting results and productivity. The droplet-free cutting face features reduced friction, which in turn promotes rapid chip removal from the flute. High-performance tools for machining hardened steels Higher chip removal rate The number of cutting edges on SpheroX milling cutters has been doubled compared to conventional ball nose end cutters – enabling the feed rate to be increased by more than 50%. The four cutting edges ensure shorter cutting inter- ruptions, smoother movement of the tool and better surface finish qualities for the workpieces. Comparison of the chip removal rates Chip removal rate [%] Conventional spherical tool SpheroX *30% with longer tool life 300 200 100 0 +50% * Comparison of the cutting-edge microgeometry n = 3233 rpm (vc, max. = 65 m/min), vf = 700 mm/min (fz = 0.105 mm/z), ap = 0.5 mm, ae = 2 mm, mat. 1.2379 (60 HRC), tool dia. 10 mm SpheroX Competitor After 45 minutes After 45 minutes [ 4 ]