Walter has introduced the Walter Tiger·tec Silver WPP05S, an extremely wear resistant indexable insert grade that delivers high performance and maximum productivity in steel machining (ISO P), particularly in roughing forged components and long production runs. This is made possible, in part, by the insert's thicker Tiger·tec Silver coating with its optimized aluminum oxide microstructure, and its post-coating treatment that provides greater reliability, increased toughness and reduced downtime to chipping, especially in high-volume production.
Another key design enhancement to the WPP05S insert grade is a new substrate that delivers better resistance to plastic deformation. This is particularly important at higher cutting speeds required for increased productivity. In addition, a thicker cobalt-enriched zone yields greater toughness and process reliability.
Thanks to features like these, the new Walter Tiger·tec Silver WPP05S inserts, available in multiple geometries (MP3, MP5, RP5 and NRF), can reliably operate at high cutting speeds with greater metal removal rates. In addition, field tests have confirmed significantly increased tool life at high speeds.
Aluminum oxide, also known as corundum, is used in grinding wheels. The chemical formula is Al2O3. Aluminum oxide is the base for ceramics, which are used in cutting tools for high-speed machining with light chip removal. Aluminum oxide is widely used as coating material applied to carbide substrates by chemical vapor deposition. Coated carbide inserts with Al2O3 layers withstand high cutting speeds, as well as abrasive and crater wear.
Replaceable tool that clamps into a tool body, drill, mill or other cutter body designed to accommodate inserts. Most inserts are made of cemented carbide. Often they are coated with a hard material. Other insert materials are ceramic, cermet, polycrystalline cubic boron nitride and polycrystalline diamond. The insert is used until dull, then indexed, or turned, to expose a fresh cutting edge. When the entire insert is dull, it is usually discarded. Some inserts can be resharpened.
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