METHOD OF MANUFACTURING A HIGH CURRENT ELECTRODE FOR A PLASMA ARC TORCH
First Claim
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.
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Accused Products
Abstract
A method of manufacturing an electrode for use in a plasma arc torch is provided that includes 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. A plurality of emissive inserts are inserted through the distal end face and into the central protrusion. The plurality of emissive inserts are pressed into the central protrusion and both a proximal end portion of the central protrusion and the plurality of emissive inserts are deformed 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.
25 Citations
23 Claims
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1. A method of manufacturing an electrode for use in a plasma arc torch comprising:
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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. - View Dependent Claims (2, 4, 5, 6, 7, 8, 9, 10)
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3. The method according to claim 3, wherein the height ratio is approximately 0.9 to approximately 0.95.
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11. A method of manufacturing an electrode for use in a plasma arc torch comprising:
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forming a conductive body to define a proximal end portion, a distal end portion, and a distal end face disposed at the distal end portion; inserting a plurality of emissive inserts through the distal end face and into the distal end portion; pressing the plurality of inserts into the distal end portion and deforming the plurality of emissive inserts such that the plurality of emissive inserts extend at an angle relative to the distal end portion. - View Dependent Claims (12, 13, 14, 15)
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16. A method of manufacturing an electrode for use in a plasma arc torch comprising:
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forming a conductive body to define a proximal end portion, a distal end portion, and a distal end face disposed at the distal end portion; inserting at least one emissive insert through the distal end face and into the distal end portion; pressing the at least one emissive insert into the distal end portion and deforming the emissive insert such that the emissive insert extends at an angle relative to the distal end portion. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification