Radius cutter
High-speed finishing in the roughing application
WNT has further developed its radius milling cutters. According to the manufacturer, the 3D Finish tool family is designed for finishing. The special feature of the milling cutters is the large radii (up to 1,500 mm) in the cutting area, which simulate the cutting diameter of a ball end mill. As a result, the new 3D finishing cutters enable significantly larger line jumps compared to radius or ball end mills with the same tool diameter. Process times in pre-finishing or finishing operations can be reduced by up to 90 percent without subjecting the workpiece, tool and machine to high stresses.
In addition, significantly higher infeeds (ap) are possible with the 3D finish milling cutters than with conventional radius milling cutters. This would significantly shorten machining times without having to fear any loss of quality in the surface finish. If, on the other hand, a smaller stepover is used, the surface quality can be improved. A typical ball end mill diameter of 20 mm would achieve a surface quality of Ra1.6 µ with a line step of 0.5 mm; with the 3D finish and a radius of 1,500 mm, the line step could be increased to 6.93 mm with the same surface quality. sw
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