Three-Edged High Speed Steel Drill Maintains Tool Life
IMTS 2018: Mapal’s Tritan-Drill series of three-edged drills now includes an HSS model for small-series production.
Mapal’s Tritan-Drill series of three-edged drills now includes an HSS version for small-series production.
According to the company, the shape of the main cutting edge makes the HSS drill robust even in difficult conditions.Stable cutting edge corners reduce damage to the cutting edge for smooth machining. The coating of the drill suits a range of different materials and increases tool life.
The drill features point geometry designed to eliminate piloting and center-punching. According to the company, it achieves higher feed rates than twin-edged HSS drills. With a pronounced tip reducing the chance of slipping over the chisel edge, it can also be used with hand drilling units. Diameters range from 8 to 40 mm.
The recipe for best results is simple: Start with a rigid machine, add a high pressure through-the-spindle coolant system, then combine these with the right drill geometry plus the right speeds and feeds.
Let's face it. When most shops go looking for process improvements, turning is seldom at the top of the list. Sure, many shops these days are doing fine work in such areas as reducing lathe setup, combining milling and turning operations on a single machine, and automating workpiece handling functions. But for all the talk of high speed machining and other milling and drilling process improvements, precious little of that kind of thinking is being applied to the turning process itself.
The more common twist drill point geometries often are not the best for the job at hand. By choosing the best point for the material being drilled, it is possible to achieve better tool life, hole geometry, precision, and productivity.