Patent ID: 8656577
Filing Date: 2014-02-25
Classification: H05H,Y10T

Abstract:
1. A method of manufacturing an electrode for use in a plasma arc torch comprising: forming a conductive body to define a proximal end portion, a distal end portion, a distal end face disposed at the distal end portion, a central cavity, and a central protrusion disposed within the central cavity near the distal end portion; inserting a plurality of emissive inserts through the distal end face and into the central protrusion; pressing the plurality of emissive inserts into the central protrusion and deforming both a proximal end portion of the central protrusion and the plurality of emissive inserts such that the plurality of emissive inserts extend radially and outwardly from the distal end portion at an angle relative to the distal end portion.