A new family of Iscar turning inserts brings Sumo Tec performance and stability to CVD and DVD carbide grades. In like tests in a variety of turning applications, the inserts outlasted their immediate competitors by 26 to 288 percent. The key to the lengthened life is the Sumo Tec unique treatment, introduced in late '07 in a constricted range of milling inserts, that smooths the coated surface and diminishes surface tension stresses in insert coatings. These cause cooler running, greater chipping resistance, reduced built up edge and truly longer edge life in all workpiece metals. During the alumina coating preparation, internal tension stresses occasionally cause cracks. The brand new Sumo Tec treatment induces compression stresses, which aides to seal these cracks. The seven new Sumo Tec turning grades incorporate 2 for cast iron; 3 for steel and one for heat-resistant alloys and hardened steel. All the most popular insert geometries are attainable from inventory, with new geometries being added frequently. Iscar also plans to add new grades as well.
Here are the grades available:
FOR CAST IRON
IC5005, with a hard substrate, MTCVD TiCN and dense Al2O3 coating, is endorsed mainly for nodular cast iron. It also handles other cast irons at medium to high cutting speeds at stationary or slightly unstable conditions. This grade may be used in hard cast irons when especially high wear resistance is essential.
IC5010, featuring a tough substrate, MTCVD TiCN and thick Al2O3 coating, targets gray cast iron. It is endorsed for interrupted cuts and unstable turning conditions in other materials.
FOR STEEL
IC8150, consisting of a incredibly hard substrate with a cobalt enriched outer layer, MTCVD TiCN and a thick alpha Al2O3 CVD coating. Promoting exceptional thermal stability and resistance to chipping, this grade is favored for high speed turning of steel subjugated to stable or slightly unstable conditions. It can also cope with stainless steel and interrupted cuts in nodular cast iron.
IC8250, a tough substrate with the same outer layers. It features excellent thermal stableness and protection to plastic deformation and is advocated for general machining of alloyed and stainless steel in a wide range of conditions.
IC8350, featuring a very tough substrate under the same outer layers. It achieves exceptional shock opposition and great wear resistance on alloyed and stainless steel.
For Alloys, Stainless Steel and Hardened Steel
IC807, with a tough submicron substrate under a TiAlN PVD coating, is proper for turning heat resistant alloys, austenitic stainless steel and hard steel at low to medium cutting speeds. In a test against its closest competitor on all three materials, the elevation in tool life was up to 150%.
Key Test Results
Prior to unveiling the new SUMO TEC turning tool line, ISCAR tested all grades opposite their closest opponent in a range of functions. Here are the key conclusions for grades 5005 and 5010 in cast iron. The advancement was 47% in SAE 1045 steel and 250% in 4140. In forging steel, the brand new Sumo Tec insert lasted twice as long.
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