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End Mills Improve Chamfering Performance

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Iscar's Sumomill family of end mills feature Sumo Tec coating treatment.

Iscar's Sumomill family of end mills feature Sumo Tec coating treatment.

June 6, 2011—A new family of Iscar end mills extend the benefits of tangential Sumomill inserts to chamfering, countersinking and face milling. Featuring the proprietary Sumo Tec coating treatment, Iscar's Sumomill creates a fundamentally stronger cutting platform, which leads to longer edge life and elimination of fracture failures at higher cutting rates, even in unfavorable conditions. Sumomill tangential end mills, all four-flute in 12 mm diameters, come in 30, 45 and 60 degree geometries. In face milling applications they can run at very high table feeds due to their small diameter and high flute density.The proprietary Sumo Tec surface treatment produces a much smoother, more lubricious surface on the insert, with fewer thermal stresses and stress factors than would be found in an untreated plain PVD or CVD coating. This leads to cooler cutting (heat is a key enemy of machining inserts), less friction and much reduced risk of insert rupture.  On average, SumoTec coated tools have proven to literally double throughput and reliably extend insert life by 40 percent versus identical but untreated inserts, according to the company.   

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Iscar
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www.iscar.com