FACE MILLING OF STEEL WITH OCTAGONAL INSERT
Keywords:face milling, octagonal insert, feed per tooth, cutting forces, specific cutting forces
Face milling is often used to create flat surfaces, since when used as finishing, a suitable surface roughness can be achieved by fulfilling the specified dimension and tolerance requirements. In addition, high productivity can be reached by choosing the appropriate parameters of the cutting process. The cutting data also affect the cutting force and the wear of the tool, and another consideration is that the resulting vibrations can deteriorate the microgeometry of the surface. Several insert shapes are available for face milling. Experiments were carried out with a milling head equipped with a single octagonal insert. The effect of increasing the feed per tooth was examined through the cutting force components, while keeping the cutting speed and depth of cut fixed. The changes in the specific cutting force components were also analysed.
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