Article From: 1/21/2009 Production Machining
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Kennametal’s Beyond is a line of high performance turning products. Because of higher metal removal rates and extended tool life, these products are designed to push productivity 30-percent higher or more for a variety of metalworking users.
The turning products offer a line of 11 grades applicable to steel, stainless steel and cast-iron turning applications. A post-coat surface treatment is designed to improve edge toughness, reliability and depth-of-cut notch resistance and micro-polishes the surface to reduce friction and workpiece sticking. A fine-grained alumina layer allows for increases in cutting speed, improving productivity and reliability at high cutting temperatures, the company says.
The line consists of five grades and 22 geometries for steel turning; three grades and ten geometries for cast iron turning; and three grades and eight geometries for stainless steel turning. Manufacturers in the transportation, aerospace, oil and gas, medical and general engineering industries could realize significant speed, feed and depth of cut increases depending on the application, the company says.
All the inserts are CVD (chemical vapor deposition) coated, but whereas conventional CVD coatings are under tensile stress, Beyond inserts undergo a post-coat treatment on all surfaces to reduce this stress, which improves coating adhesion and reduces micro-chipping.
