High speed inserts for cast iron drilling
- October 31, 2016
Walter has expanded its range of Color Select high speed inserts for cast iron drilling with the P6005-WKK45C grade for Xtra-tec B401x point drills.
These new inserts are available in diameters up to 37.99 mm (1.50 in). With this expansion, the grade specially developed by Walter for machining cast iron can now be used to drill all holes from 12 to 37.99 mm (0.47 to 1.50 in.) in diameter at depths up to 7× Dc and holes from 18 to 25.80 mm (0.71 to 1.02 in.) in diameter at hole depths up to 10× Dc.
The typical cast iron properties such as brittleness as well as irregular structures and surfaces exert a great deal of stress on cutting edges, which can result in high operating temperatures. The substrate, coating and geometry of the P6005-WKK45C insert work to counteract these conditions. Its multilayer PVD coating combines wear-resistant and tough layers to ensure optimized hardness and toughness.
These characteristics give the new inserts up to 100 per cent more strength on the cutting edge and outstanding resistance to wear and high temperatures, according to Walter. They also provide great process reliability when drilling and withdrawing from deep holes, even at very large diameters. In addition, the red ISO K coating used on the Color Select WKK45C range allows users to easily gauge the amount of wear on the insert.