Forming method of cold and hot forging combination of steering guide rod

A forming method of cold and hot forging combination of a steering guide rod is characterized by comprising the following steps that a, one end of a processed metal bar material is heated, when the temperature ranges from 1100 DEG C to 1180 DEG C, the end, without being heated, of a blank is inserted into a hot upsetting head female die, the heated end of the blank is upwards placed in a die, andhot upsetting is conducted to form a rod head portion; b, the blank which comprises the formed head portion and is obtained in the step a is immediately placed in a hot reverse extrusion female die, the reverse extrusion process of a forged piece is accomplished, and the head portion of the forged piece is subjected to reverse extrusion to form a counterbored hole; c, the blank obtained in the step b is treated, annealing treatment is conducted, a hole is drilled in the bottom end of the counterbored hole of the formed blank, the diameter of the hole is smaller than the hole diameter of the position of the hole in a s