Welded integral alloy end mill

The utility model belongs to the technical field of end milling cutters, and particularly relates to a welded integral alloy end milling cutter which comprises a cutter handle, the cutter handle comprises a groove and a threaded hole, the groove is formed in one end of the cutter handle, and the threaded hole penetrates through the cutter handle in the radial direction; the first magnetic block is arranged in the groove; the cutter head is integrally connected to one end of the cutter handle; a positioning hole and a mounting hole are formed in the outer wall of the handle sleeve, and the positioning hole is communicated with the threaded hole; the fixing bolts are connected to the threaded holes; the knife handle is matched with the handle sleeve in an inserted mode, the multiple positioning holes and the multiple mounting holes are linearly formed in the axial direction of the handle sleeve at equal intervals, and second magnetic blocks are arranged in the multiple mounting holes; the end mill has the advan