Patent ID: 8499606
Filing Date: 2013-08-06
Classification: B21J,B21K,C21D,C22F,Y10S,Y10T

Abstract:
1. A method of manufacturing a refractory-metal target from a refractory-metal workpiece having a longitudinal axis and a first dimension substantially perpendicular to the longitudinal axis, the method comprising: without flat-forging the workpiece along an axis substantially perpendicular to the longitudinal axis: thereafter, and without flat-forging the annealed sixth workpiece along an axis substantially perpendicular to the longitudinal axis therebetween, forming the annealed sixth workpiece into a plate via a plurality of rolling cycles performed substantially perpendicular to the longitudinal axis, the annealed sixth workpiece being turned between at least two of the rolling cycles, and a thickness of the plate along the longitudinal axis decreasing during at least one rolling cycle.