US 12,409,504 B2
Welding applicator and method of application
Nigel Scotchmer, Willowdale (CA); Franklin Rementer, Dover, DE (US); and Dominic Cheuk Hung Leung, Thornhill (CA)
Assigned to HUYS INDUSTRIES LIMITED, Weston (CA)
Filed by HUYS INDUSTRIES LIMITED, Weston (CA)
Filed on Feb. 4, 2020, as Appl. No. 16/781,638.
Claims priority of provisional application 62/801,437, filed on Feb. 5, 2019.
Prior Publication US 2020/0246900 A1, Aug. 6, 2020
Int. Cl. B23K 9/04 (2006.01); B23H 1/00 (2006.01); B23H 1/02 (2006.01); B23K 9/09 (2006.01); B23K 9/10 (2006.01); B23K 9/12 (2006.01); B23K 9/173 (2006.01)
CPC B23K 9/04 (2013.01) [B23H 1/02 (2013.01); B23K 9/09 (2013.01); B23K 9/1006 (2013.01); B23K 9/124 (2013.01); B23K 9/173 (2013.01); B23H 1/00 (2013.01); B23K 9/1043 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of electro-spark deposition comprising:
providing an electro-spark deposition welding apparatus including an electro-spark deposition power supply, a welding electrode holder connected to the power supply, and a consumable welding electrode rod mounted to the welding electrode holder, and at least first and second workpiece connections emanating from said electro-spark deposition power supply;
in use said first and second workpiece connections being at different locations;
said welding electrode, in operation, being of a first polarity;
said first and second workpiece connections, in operation, being of a second polarity;
said second polarity of said first and second workpiece connections, in operation, being of opposite polarity to said first polarity of said welding electrode;
providing a first electro-spark deposition discharge current to said welding electrode rod while said power supply is switched to elect said first workpiece connection;
switching said electro-spark deposition power supply to elect said second workpiece connection; and
providing a second electro-spark deposition discharge current to said welding electrode rod while said power supply is switched to elect said second workpiece connection;
said first electro-spark deposition discharge current having the same polarity relative to said welding electrode rod as does said second electro-spark deposition discharge.