Method for manufacturing prismatic profiling facing cam

The invention discloses a method for manufacturing a prismatic profiling facing cam, which is characterized by comprising the following steps: casting the whole blank; rough-turning the whole blank; leaving equivalent allowances for an end face positioning and impacting surface, a profile curve developed surface, a radial positioning surface, a raceway surface and a surface; hardening and tempering; ensuring the whole blank to meet the machining property; half-finished turning; except for leaving allowances for the radial positioning surface, the profile curve developed surface and an axial positioning end face, ensuring that the rest parts meet the specified requirements; grinding; grinding the axial positioning end face, the radial positioning surface and the profile curve developed surface in sequence; drilling, and rough and fine milling; machining with a machining center, drilling a positioning hole and a 0-degree marking hole, and roughly and finely milling the raceway surface; selective quenching; perf