Sumo-Line offers improved productity, profitability and performance

The name of a major programme of metalworking tools and inserts from Iscar, the Sumo Line, has been given the prefix 3P indicating productivity, profitability and performance have been improved. The core of 3P is Sumo Tec, which features premium tungsten carbide grades for drilling, milling, turning and grooving. Grades, exclusive to Iscar, extend tool and insert life as a result of innovations in the substrate and in the CVD and PVD coatings. The PVD process is composed of the company’s Al-Tec coating technology while the CVD coating is based on its Alpha-Tec technology, both of which have been shown to provide superior wear resistance, says the company. In an additional process, a further layer is deposited on top of the PVD and CVD coatings to provide a very even, low-stress layer that improves tool life further. The smooth surface contributes to uninterrupted chip flow and hence less friction and heat generation. The new process also improves toughness and chipping resistance, reducing friction and built-up edge, which in turn prolongs tool life at elevated machining speeds and feeds for all types of workpiece material.