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Iscar Develops An Ground Breaking Line Of High Performance Carbide Grades For Increased Efficiency
A cutting edge family of Iscar turning inserts brings Sumo Tec performance and durability to CVD and DVD carbide grades. In the same tests in a selection of turning applications, the inserts out performed their immediate competitors by 26 to 288 percent. The key to the lengthened life is the Sumo Tec specific treatment, introduced in late '07 in a constricted range of milling inserts, that flattens the coated surface and decreases surface tension stresses in insert coatings. These cause cooler running, better chipping resistance, decreased built up edge and faithfully longer edge life in all workpiece metals. During the alumina coating preparation, internal tension stresses sometimes cause cracks. The brand new Sumo Tec treatment produces compression stresses, which helps to seal these cracks. The 7 completely new Sumo Tec turning grades contain 2 for cast iron; 3 for steel and 1 for heat-resistant alloys & hardened steel. All the most popular insert geometries are obtainable from inventory, with new geometries being added continually. 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 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 especially high wear resistance is imperative.
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 materials.
FOR STEEL
IC8150, consisting of a exceptionally hard substrate with a cobalt enriched outer layer, MTCVD TiCN and a thick alpha Al2O3 CVD coating. Promoting outstanding 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 handle stainless steel and interrupted cuts in nodular cast iron.
IC8250, a tough substrate with the same outer layers. It features fantastic thermal stability and resistance to plastic deformation and is favored 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 delivers superb shock opposition 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 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 increase in tool life was up to 150%.
Key Test Results
Prior to introducing the new SUMO TEC turning tool family, ISCAR tested all grades against their closest competitors in a variety of functions. Here are the critical conclusions for grades 5005 and 5010 in cast iron. The enhancement was 47% in SAE 1045 steel and 250% in 4140. In forging steel, the new Sumo Tec insert lasted 2X as long.
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