METHOD AND APPARATUS FOR THE GRAIN REFINEMENT OF TUBE-SHAPED METAL MATERIAL USING THE ECAE PROCESS

摘要

PURPOSE: the method and apparatus of purification improve intensity and flexibility using what the offer homogeneous shear of tubular metal crystal grain ECAE processes deformed to induce no thickness change. ;CONSTITUTION: device (100) squeezes plunger, and plunger for refining tubular metal crystal grain using ECAE processes casting die (110). Mold is symmetrical. Casting die has a channel for refining tubulose extrusion material (200) particle. It squeezes plunger and is forced to tubulose extrusion material from side casting die channel. Fixed plunger is fixed to the other side of casting mould, and along the channel. Fixed plunger refines tubular extruded particle. ;The 2010 of copyright KIPO submissions