Milling cutter for machining graphite workpieces

The invention is applied to the field of cutter structure design and discloses a milling cutter for machining graphite workpieces. The milling cutter comprises a cutter holder and a cutter head; the cutter head is provided with four cutting edges, four edge strips, four end chip removal grooves, four spiral chip removal grooves and an edge connector; the four cutting edges are distributed at the end of the cutting head at intervals, the inner edges of two of the cutting edges are connected with the two ends of the edge connector correspondingly, and the inner edges of the other two cutting edges are located on the two sides of the edge connector at intervals correspondingly; the four end chip removal grooves are formed between the two respective adjacent cutting edges, one ends of the fourend chip removal grooves communicate with the four spiral chip removal grooves correspondingly, the other ends of two of the adjacent end chip removal grooves are converged on one side of the edge connector, and the other en