The invention discloses a method for producing a conductive screw rod, and relates to the conductive screw rod with the purpose of solving the great hidden danger of cutter breakage during
deep hole machining. According to the technical scheme, the method for producing the conductive screw rod is characterized by comprising the following specific steps of A,
casting, B, rough
machining, C, drilling and D,
assembly, wherein in the step A, 1, raw materials, namely,
molten metal and a
graphite rod are provided, 2, equipment, namely a
casting press and a mould are provided, and 3, a working flow is as follows: after the
graphite rod is vertically fixed in the mould,
molten metal is injected into the mould, and the mould is pressurized by the press, so that a blank is formed under pressure; and in the step C, 1, equipment, namely, a drilling
machine is provided, and 2, a working flow is as follows: a
drill bit of the drilling
machine is aligned with the
graphite rod, and the graphite rod is pulverized and drilled away from a roughing material so that the roughing material with a
deep hole is formed. According to the method for producing the conductive screw, the
deep hole is formed by drilling the graphite rod with the drilling
machine, and since the
hardness of the graphite rod is far lower than that of a
casting piece, the problem of the cutter breakage is effectively prevented.