END MILL FOR PROCESSING HARD-PROCESSED AND TITANIUM ALLOYS

摘要

The utility model relates to the field of mechanical engineering, namely to the design of metal-cutting tools, in particular milling cutters. The essence of the utility model is that a milling cutter with a waveguide front surface of the teeth, made with the displacements of the protrusions and depressions of each subsequent tooth along the helical surface of the tooth, with smooth conjugation screw sections at the working end of the cutter; with waveguide sections made from the condition that all the extreme points of the wave cutting edge and helical sections are located on the generatrix of the cutter cylinder, and the cutting edges of the teeth are made with chip splitting grooves; the teeth in the hollows, on the ridges are made with a rake angle of from plus 10 degrees to minus 3 degrees at a wavelength; the displacement of the protrusions and troughs of the waves of each subsequent tooth is equal to 1 / z of the wavelength, with the number of teeth equal to z; the wave-screw front surface of the teeth and the chip-forming radius grooves are made harmoniously, located on the protrusions of the wave-screw front surface of the teeth in the left spiral, and the cutter is made with end teeth, an uneven circumferential step and a jumper at the end, and the cutter core is evenly thickened in the direction of the shank by 1-2 mm for every 100 mm of the cutting part of the tool. The proposed utility model is aimed at increasing the resistance and productivity of the cutter, achieving its versatility.