A method of forming, from a rough forging, an end-machined and drilled blank for extrusion on a pipe extruding press, and a machine tool for implementing the method

摘要

A method of forming, from a rough forging, an end-machined and drilled blank for extrusion on a pipe extruding press comprises the steps of drilling the rough forging axially on a lathe by means of a straight-flute drill bit from one end, and of end-machining it concurrently with the drilling step successively at the other end and said one end.