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Tool manufacturer Pokolm Frästechnik describes the latest addition to its milling cutter portfolio as the high-performance milling system for roughing and prefinishing applications in the field of high-feed machining. With FOURWORX, milling specialist POKOLM claims a multitude of interesting properties that will enable users to advance into previously unattainable realms of performance.
The extra performance is made possible by the completely redesigned overall geometry of the milling system. The significant outcome is that even the smallest tool diameter of 16 mm boasts three inserts. With this branch novelty, cutting depths up to ap 0.75 mm and feed rates up to fz 1.2 mm/teeth can be achieved. And despite the small tool diameter, the innovative geometry enhances stability.
Similar attributes apply to the inserts. Despite the compact dimensions, a clearly visible and innovative reinforcing collar around the screw seat, together with a negative insert seat, provides for an extended service life. At the same time, chamfered outer edges protect the inserts against spalling around the circumference. A 3D chip pocket optimizes chip removal and cutting performance.
The corner radius of 1 mm stands for stability at the outer tool diameter – even at high feed rates. The extremely precise inserts possess four cutting edges. In four different grade/coating combinations and with two chip-breaker grooves, they allow the machining of a broad range of materials and are suitable for the machining steel, cast iron and SAH materials, such as titanium and Inconel.
Overall, the innovative system design leads to considerable reduction of the stress in the tool and to significantly enhanced stability, according to the company.
Even on less powerful machines, FOURWORX milling cutters enhances performance. Similarly, the new milling system also proves its capabilities with fragile workpieces and in deep cavities, both in wet and dry machining.
FOURWORX is available in diameters 16 to 42 mm as endmills, threaded-shank mills and with POKOLM's patented DUOPLUG system for optimised concentricity and maximum rigidity. All tools feature an internal coolant supply for process reliability.
Related Glossary Terms
- coolant
coolant
Fluid that reduces temperature buildup at the tool/workpiece interface during machining. Normally takes the form of a liquid such as soluble or chemical mixtures (semisynthetic, synthetic) but can be pressurized air or other gas. Because of water’s ability to absorb great quantities of heat, it is widely used as a coolant and vehicle for various cutting compounds, with the water-to-compound ratio varying with the machining task. See cutting fluid; semisynthetic cutting fluid; soluble-oil cutting fluid; synthetic cutting fluid.
- feed
feed
Rate of change of position of the tool as a whole, relative to the workpiece while cutting.
- gang cutting ( milling)
gang cutting ( milling)
Machining with several cutters mounted on a single arbor, generally for simultaneous cutting.
- milling
milling
Machining operation in which metal or other material is removed by applying power to a rotating cutter. In vertical milling, the cutting tool is mounted vertically on the spindle. In horizontal milling, the cutting tool is mounted horizontally, either directly on the spindle or on an arbor. Horizontal milling is further broken down into conventional milling, where the cutter rotates opposite the direction of feed, or “up” into the workpiece; and climb milling, where the cutter rotates in the direction of feed, or “down” into the workpiece. Milling operations include plane or surface milling, endmilling, facemilling, angle milling, form milling and profiling.
- milling cutter
milling cutter
Loosely, any milling tool. Horizontal cutters take the form of plain milling cutters, plain spiral-tooth cutters, helical cutters, side-milling cutters, staggered-tooth side-milling cutters, facemilling cutters, angular cutters, double-angle cutters, convex and concave form-milling cutters, straddle-sprocket cutters, spur-gear cutters, corner-rounding cutters and slitting saws. Vertical cutters use shank-mounted cutting tools, including endmills, T-slot cutters, Woodruff keyseat cutters and dovetail cutters; these may also be used on horizontal mills. See milling.
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