Mapal develops Mega-Drill-Inox for speedy drilling of aerospace alloys
1 min read
Mapal's latest addition to its Mega-Drill range, the Mega-Drill-Inox, has been introduced to provide a time-saving solution to the drilling of difficult-to-machine materials like stainless steels and high temperature alloys used in the aerospace industry.
The high performance of the Mapal Mega-Drill-Inox drills is made possible by the incorporation of the exceptionally sharp cutting edges that provide the enhanced chip-shearing properties essential for accurate high speed drilling of stainless steels and similar materials. The drills also feature a specially developed flute form with rounded geometry to promote the free and easy flow of chips.
Like other drills in the Mega-Drill range, the Mega-Drill-Inox drills have three, rather than the usual two, guiding chamfers and they are arranged asymmetrically. This means that the cutting edge spacing is not 180º, but a few degrees more and that the second guide chamfer also acts as a free cutting edge, an arrangement which effectively eliminates jamming.
The combination of point geometry and flute form used in Mega-Drill-Inox drills create a tool with a low axial thrust loading ,which reduces heat generation and built up edge.
Mega-Drill-Inox drills, which allow a bore tolerance of IT9 to be achieved, are available in standard versions with bore diameters from 3 to 20 mm for drilling depths of 3XD, 5XD and 8XD. They can be supplied in versions with HA or HE shank forms, for use with internal or external coolant supply. Mapal is also able to apply the technologies used in these drills to develop custom tools to meet specific customer requirements.
