produces positive cutting edge from a series of unbroken radii that induces no wear because of the absence of a tangent point. The geometry makes it possible for the chip to smoothly and quickly flow out of the cut. Extraordinarily high feed rates using heavy chip loads are achieved using this innovative cutting motion.

Before, high feed cutters and tools come in the form only of insertable tools in bigger diameters. But because of the new developments and innovations in grinding technology that resulted to the rebirth of high feed tooling, it is now available in two-flute inserts with 3/8” to 1” sizes, and four-flute solid carbide with sizes in the range of 1/8” to 1/2”. This technology overlap paves the way for the streamlining of many small-scale roughing applications.

In many cases, the machining times are reduced by up to 70% through the use of high feed geometry. This practically guarantees a significant increase in throughput. By making it possible for smaller diameter tools to be equipped with heavy chip loads, high feed rates are achieved in relatively small machining requirements. This flexible option of high feed tooling has become irreplaceable and an integral part of a lot of roughing applications.

The future of high speed roughing rests in high feed machining strategy. Gone are the days when the roughing operations have been judged and weighed solely on the basis of their metal removal rates. In the past, evaluations were done by putting the machining strategy into process where the biggest possible tools were utilized and sizes were worked down on. The proper use of high feed tooling, however, can accomplish the same, if not better rate of metal removal with a tool that is much smaller.

High feed cutters can be used to eliminate re-roughing works and to reach the net shape or allowable corner radii much more quickly. The ultimate goal of improving throughput will be achieved while at the same time ensuring meeting delivery lead-time commitments that is a primary source of customer conflict. This will result to healthier customer relationships, and ultimately better sales.