Integral full-ceramic super dense-tooth three-edge milling cutter and manufacturing method thereof

The invention discloses an integral full-ceramic super dense-tooth three-edge milling cutter and a manufacturing method thereof. The integral full-ceramic super dense-tooth three-edge milling cutter comprises a three-edge milling cutter body; the three-edge milling cutter body is connected with a cutter handle through a keyway hole in the center of the three-edge milling cutter body, and comprises a main cutting edge and two side cutting edges; the front angle of the main cutting edge is (-10)-0 degree; the rear angle of the main cutting edge is 5-15 degrees; the rear angles of the two side cutting edges are 2-5 degrees respectively; the three-edge milling cutter body has 10-20 teeth, has a diameter of 50-200 mm, and is made of titanium carbonitride based metal ceramic. Through the adoption of the integral full-ceramic super dense-tooth three-edge milling cutter, high-speed and super high-speed machining can be realized, the material removing rate is improved, and the machining cost is reduced; when the total radial cutting depth remains unchanged, the radial cutting depth of a single cutting edge, the cutting force and the cutter abrasion can be reduced; the service life of the integral full-ceramic super dense-tooth three-edge milling cutter is effectively prolonged, the cutter replacement times are reduced, and the machining efficiency is improved. Compared with an indexable milling cutter, the integral full-ceramic super dense-tooth three-edge milling cutter has the advantages of being high in rigidity, positioning precision, and repeated sharpening property; moreover, the machining quality can be improved, and the machining cost is reduced.