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A cutting edge family of Iscar turning inserts brings Sumo Tec performance and stability to CVD and DVD carbide grades. In identical tests in a variety of turning applications, the inserts out performed their closest competitors by 26 to 288 percent. The key to the longer life is the Sumo Tec unique treatment, introduced in late '07 in a constricted range of milling inserts, that perfects the coated surface and diminishes surface tension stresses in insert coatings. These lead cooler running, greater chipping resistance, diminished built up edge and faithfully longer edge life in all workpiece materials. During the alumina coating procedure, internal tension stresses occasionally cause cracks. The brand new Sumo Tec treatment leads to compression stresses, which aides to seal those cracks. The seven revolutionary Sumo Tec turning grades contain two for cast iron; 3 for steel and one for heat-resistant alloys & hardened steel. All the most desired insert geometries are attainable from stock, with new geometries being added frequently. Iscar also plans to add new grades additionally.

Here are the grades available:

FOR CAST IRON
IC5005, with a hard substrate, MTCVD TiCN and dense Al2O3 coating, is recommended 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 imperative.

IC5010, presenting a tough substrate, MTCVD TiCN and thick Al2O3 coating, targets gray cast iron. It is advocated for interrupted cuts and unstable turning conditions in other materials.

FOR STEEL
IC8150, consisting of a extremely hard substrate with a cobalt enriched outer layer, MTCVD TiCN and a thick alpha Al2O3 CVD coating. Promoting excellent 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 deal with stainless steel and interrupted cuts in nodular cast iron.

IC8250, a tough substrate with the same outer layers. It features exceptional thermal stableness and resistance to plastic deformation and is advocated for general machining of alloyed and stainless steel in a comprehensive range of conditions.

IC8350, featuring a very tough substrate under the same outer layers. It accomplishes excellent shock protection 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 opposite to its closest competitor on all three materials, the betterment in tool life was up to 150%.

Key Test Results
Prior to unveiling the new SUMO TEC turning tool family, ISCAR tested all grades opposite their nearest opponent in a range of operations. Here are the crucial conclusions for grades 5005 and 5010 in cast iron. The betterment was 47% in SAE 1045 steel and 250% in 4140. In forging steel, the brand new Sumo Tec insert lasted 2X as long.

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