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Iscar Develops An High Tech Line Of High Functioning Carbide Grades For Elevated Production
A new family of Iscar turning inserts brings Sumo Tec performance and stability to CVD and DVD carbide grades. In identical tests in a range of turning applications, the inserts out performed their nearest competitors by 26 to 288 percent. The key to the longer life is the Sumo Tec specialized treatment, introduced in late 2007 in a limited range of milling inserts, that smooths the coated surface and diminishes surface tension stresses in insert coatings. These lead cooler running, enhanced chipping resistance, lowered built up edge and reliably longer edge life in all workpiece materials. During the alumina coating process, internal tension stresses at times cause cracks. The new Sumo Tec treatment induces compression stresses, which aides to seal those cracks. The 7 completely new Sumo Tec turning grades include two for cast iron; three for steel and 1 for heat-resistant alloys and hardened steel. All the most popular insert geometries are attainable from stock, with new geometries being added routinely. Iscar also plans to add new grades likewise.
Here are the grades available:
FOR CAST IRON
IC5005, with a hard substrate, MTCVD TiCN and thick Al2O3 coating, is recommended mainly for nodular cast iron. It also handles other cast irons at medium to high cutting speeds at stable or slightly unstable conditions. This grade may be used in hard cast irons when unusually high wear resistance is essential.
IC5010, featuring a tough substrate, MTCVD TiCN and thick Al2O3 coating, targets gray cast iron. It is recommended for interrupted cuts and unstable turning conditions in other metals.
FOR STEEL
IC8150, consisting of a extraordinarily hard substrate with a cobalt enriched outer layer, MTCVD TiCN and a thick alpha Al2O3 CVD coating. Featuring fantastic thermal stability and resistance to chipping, this grade is recommended for high speed turning of steel subsequent 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 resistance to plastic deformation and is favored for general machining of alloyed and stainless steel in a extensive range of conditions.
IC8350, featuring a very tough substrate under the same outer layers. It delivers remarkable shock resistance and desirable 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 suitable 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 betterment in tool life was up to 150%.
Key Test Results
Prior to releasing the new SUMO TEC turning tool family, ISCAR tested all grades against their nearest competitors in a diversity of functions. Here are the key conclusions for grades 5005 and 5010 in cast iron. The improvement was 47% in SAE 1045 steel and 250% in 4140. In forging steel, the cutting edge Sumo Tec insert lasted 2X as long.
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