A diamond intermittent micro-
grinding cutter comprises a cutter
handle section, a transition section and a cutter head section. The cutter
handle section is of a cylindrical structure, the transitionsection is of a conical
frustum structure, the cutter head section is of a polygonal cylindrical structure, the cutter
handle section is located at the large-
diameter end of the transition section, the cutter head section is located at the small-
diameter end of the transition section, the cross section of the cutter head section is in a hexagonal shape and is divided into three arc edges and threelinear edges, and the first arc edge, the first linear edge, the second arc edge, the second linear edge, the third arc edge and the third linear edge are sequentially connected end to end.
Diamond abrasive particles are electroplated on the surface of the transition section,
diamond abrasive particles are electroplated on the portions, corresponding to the three arc edge, on the surface of the cutter head section, no
diamond abrasive grain
coating is arranged on the portions, corresponding to the three linear edges, of the surface of the cutter head section, no
diamond abrasive grain coatingis arranged on the surface of the cutter handle section, the length of the first arc edge is larger than that of the second arc edge, the length of the second arc edge is larger than that of the third arc edge, circle centers of the three arc edges coincide, the linear lengths of the three linear edges are equal, and the thickness of the diamond abrasive grain
coating is 0.03-0.06mm.