The method of manufacturing circular saw with chip

Method for producing a circular saw (10) includes a first step of producing a disc-shaped base metal (11), a second step of producing a cutting insert (21) is subjected to lapping of the cutting edge, switching a third step of the blade tip (21) is coated with a hard coating (24), by brazing the cutting blade tip coated with a hard coating (24) to (21) to the pedestal (13) of the base metal (11) and a fourth step of fixedly welded. The material of the hard film, Al, Ti, nitrides containing at least one of Cr, the first material is either an oxide or oxynitride, Si in the first material, V, Ni, Y, Zr, Nb, Mo, Ta, a second material including at least one of W, B to the first material, the third material, including at least one of and C, the second B in the material is any one of the fourth material, including at least one of C.