Nickel-based brazing filler metal laser brazing diamond milling cutter

The utility model is applicable to the technical field of milling cutters, and provides a nickel-based brazing filler metal laser brazing diamond milling cutter which comprises a first fillet milling cutter and a second fillet milling cutter which are provided with nickel-based brazing filler metal laser brazing diamond layers, the arc end part of the first fillet milling cutter and the arc end part of the second fillet milling cutter are oppositely arranged; a driving connecting handle which is coaxially arranged is fixed at the large bottom end of the first fillet milling cutter; a rectangular rod is arranged at the other end of the first fillet milling cutter; threaded blind holes are formed in the ends of the rectangular rods; a supporting rolling body is mounted on the rectangular rod; a rectangular through hole in sliding fit with the rectangular rod is formed in the center of the second fillet milling cutter; a positioning screw hole is formed in the large bottom end of the second round-corner milling