Kennametal assures unparalleled drilling success to the Aerospace and Energy industries by introducing yet one more high-performance cutting tool, the B21*SGL solid carbide drill with coolant-through. This drill has a patented point geometry and monolayer PVD AITiN coating and suitable design for Stainless Steel, Nickel, and Cobalt-based alloys. For the earlier industries, it offers higher production and longer tool life where predictable, high-production drilling is essential.
Some materials have a tendency to stick to the cutting tool causing built-up edges and corner chipping. The B21*SGL solid carbide drill has proprietary gash geometry, polished cutting edges, negative rake corner margins, and chip-friendly flute design to minimize the earlier effects and simultaneously encourage chip evacuation and decrease cutting forces. This is combined with Kennametal’s highly wear-resistant, high Aluminum content KCMS15 grade to result in a drill that generates more holes per tool and that too, quickly and predictably.
A number of our customers have seen tool life improve by two to six times in a variety of challenging materials, even after increasing feed rates by up to 50% in some cases
Frank Martin
Product Manager, Solid Carbide Drills
Holemaking is a critical machining process, particularly in turbine production. The drilling operation is at the end of the production cycle where the workpiece is of maximum value, and hence, a broken drill can harm or destroy parts worth tens of thousands of dollars.
The B21*SGL gash geometry confirms smooth chip formation and decreased cutting forces due to a constantly rising rake angle and also an outer margin that avoids chipping. If due to a broken tool, an engine casing or similar expensive component has to be scrapped, this cannot be accepted. Kennametal’s solid carbide drill assures process security and high performance. The B21*SGL solid carbide drill is in a complete range of inch and metric sizes and hole depths up to 8xD.
Frank Martin further said, “In customer tests, the B21*SGL consistently outperforms competing drills, producing more holes in less time, with improved hole straightness and surface quality. The new design virtually eliminates the risk of chipping and flaking that lead to drill failure. And thanks to a unique point gash, it offers the lowest thrust level on the market, enabling productive drilling even in delicate workpiece geometries”.
“This new solid carbide drill will bring incredible value to anyone needing to drill large numbers of holes in Inconel, titanium, PH-series stainless steels, and other heat-resistant superalloys. Especially relevant to aerospace manufacturers, given the tremendous pressure to ramp up production of the LEAP aircraft engine program", said Matthieu Guillon, Key Account Manager, Aerospace.
For more details, visit www.kennametal.com