The invention discloses a drum-shaped toothed special-shaped part forming process and a drum-shaped toothed special-shaped part forming die and belongs to the field of die
stamping, and the drum-shaped toothed special-shaped part forming die comprises a
cutting die, a
sizing die, an evacuation die, a straight
pipe punching die, a drum-shaped
punching die, a drum face tooth-shaped
punching die and a
flange punching die. The shaping die is used for shaping the end face of a material blank to obtain a shaped blank, the hole drawing die is used for conducting
extrusion hole drawing on the shaped blank to obtain a hole drawing blank, the straight
pipe punching die is used for conducting through drilling in the axial direction of the hole drawing blank to obtain a straight
pipe blank, and the drum-shaped punching die is used for conducting rod shrinkage on the straight pipe blank and conducting
extrusion to form a drum shape to obtain a drum-shaped blank. The crowned
surface tooth profile punching die is used for
processing a crowned
surface tooth profile on the crowned surface of the crowned blank to obtain a crowned
surface tooth profile blank, and the
flange punching die is used for punching flanges at the two ends of the crowned surface tooth profile blank to obtain a finished product. According to the embodiment of the invention, the multi-
station cold
forging technology is adopted, so that the drum-shaped toothed special-shaped part is formed at one time, the
machining procedures are reduced, and the
machining efficiency of products and the material
utilization rate are improved.