"The Tritan-Drill, a three-fluted drill from MAPAL, achieves more bores, a longer tool life and lower machining costs compared with its twin-fluted companion," said a company spokesperson. "The Tritan-Drill makes it possible to machine with a higher feedrate. In both standard and special designs, it combines process reliability and high performance. It is a universal drill for a wide range of materials and provides rounder bores and reduced burr formation." These results are achieved in part due to the geometry that provides enhanced chip removal and a low cutting pressure. The Tritan-Drill may be used with long-chipping workpiece materials due to its chip formatting capabilities.
The Tritan-Drill can be used in difficult drilling situations, such as cross bores or inclined bore entrance. Some examples are noted below.
Forty-five percent more bores, when compared with a twin-fluted drill, are possible when machining a cylinder head made of GJL 250. Previously a twin-fluted step drill was used for machining the 15 and 16 mm diameters. One thousand eight hundred bores were machined with a cutting speed of 100 m/min and a feedrate of 0.2 mm/rev. With the three-fluted Tritan step drill, cutting speed and feedrate could be increased to 130 m/min and 0.34 mm/rev and tool life of the drill increased to 2,600 bores.
Another example of the versatile range of applications of the Tritan-Drill is the machining of a VA-rail. This part, which is exposed to strong mechanical loads at high temperatures, is manufactured from heat-resistant steel with an austenitic structure. The alloy ensures a high strength at operating temperatures up to 1,050 °C and prevents embrittlement but is difficult to machine. Compared with a twin-fluted step drill that has a tool life of 48 m, corresponding to 3,200 bores, the Tritan-Drill achieved a tool life of 63 m, or 4,200 bores.
"The reliable machining of a turbocharger made of heat-resistant cast steel is another successful application of the Tritan-Drill in practice," said the spokesperson. "Previously with a twin-fluted drill with an 8.3 mm diameter, a maximum of 60 parts could be machined. The Tritan-Drill manages 140 parts. This means that productivity is 130% higher."
The Tritan-Drill for machining steels, cast materials and non-ferrous metals is standard and available from stock. The drill is available with a diameter range of 5 to 20 mm as well in designs up to 8 XD. The Tritan-Drill as a special tool is also available at short notice.
For more information contact:
MAPAL Inc.
4032 Dove Road
Port Huron, MI 48060
810-364-8020
info@us.mapal.com
www.mapal.com