Manufacturing method for rotary tool e.g. helix drill, end mill, involves removing green body formed by solidification of mixture from machine and sintering green body to blank to allow grinding of blank after rotation of rotatable part

摘要

A green body, formed by solidification of a mixture, is removed from a machine and sintered to a blank to allow grinding of the blank after a rotatable part (29) is rotated relative to a nozzle (28). Independent claims are also included for the following: (A) rotary tool; and (B) an extrusion device.