Directional nozzle for petroleum drill bit and manufacturing process of directional nozzle

The invention discloses a directional nozzle for a petroleum drill bit and a manufacturing process of the directional nozzle, belongs to the technical field of petroleum drill bit auxiliary mechanisms, and solves the problem that a petroleum drill bit is easy to generate a mud drum. The inclined nozzle comprises an inclined nozzle body and a threaded sleeve, a nozzle runner inlet is formed in one end of the inclined nozzle body, an eccentric hole is formed in the other end of the inclined nozzle body, the eccentric hole is communicated with the nozzle runner inlet through the interior of the inclined nozzle body, and the threaded sleeve is arranged on the outer side face of the inclined nozzle body in a sleeving mode. The manufacturing process comprises the following steps that A, an inclined nozzle blank is pressed out through a mold; b, an inclined hole is machined in the machining center; c, sintering: grinding an outer circle, an end surface and an outer positioning surface after sintering; d, threads are