To address the issue of machining soft, tough and high-alloyed materials that create an issue with swarf clearance, Guhring has now introduced its new RF100 Sharp Series of end mills. Chip jamming and swarf sticking to the cutting tool can create a major impact upon productivity and machining performance – to eliminate this problem, Guhring has developed the RF100 Sharp Series of end mills.
The new RF100 Sharp delivers results with swarf evacuation on the most challenging of materials. The RF100 Sharp is also a flexible end mill that is suitable for slotting, ramping, roughing, helical milling, finishing and trochoidal cutting. The smooth cutting action combined with the potential to be used in a wide variety of applications makes the new RF100 Sharp suitable for challenging material types. With a rake angle of 12 degrees, the end mills can be applied to materials with a high ductility and tensile strength from 300 to 900N/mm2. This makes the 4-flute end mills suitable for machining steel, stainless steel, aluminium, aluminium alloys and other challenging materials.
The performance is derived from a tough carbide grade that combines with an AlCrN coating to prevent tool breakages whilst the coating technology increases the wear protection, regardless of the cutting speed. Complementing this composition is a geometry that has an optimised facet that dampens vibration, smooths the cutting action and increases tool life. A corner protection chamfer increases stability and edge strength during the most difficult of machining applications.
The RF 100 Sharp is available in three versions, an extra-long design long (DIN+) that is an extension on the long (DIN) version, but has an even longer cutting edge and there is also a standard length end mill. The RF100 Sharp with the standard and long (DIN) are available in diameters from 1 to 3mm in 0.5mm increments with the range including all common sizes up to 20mm diameter. Depending upon the chosen diameter, the RF100 Sharp is supplied with an overall length from 50 to 104mm with a flute length from 3 to 41mm. The longest tools in the range have a long neck to facilitate reaching into difficult to machine areas. With the longer series tools, the overall length ranges from 50 to 126mm with a combined flute and neck length that ranges from 5.5mm on the 1mm diameter tool through to 75mm on the 20mm diameter variant.
