Troy, OH, United States
Troy, OH, United States

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Patent
Hobart Brothers Company | Date: 2016-05-11

The disclosure relates generally to welding and, more specifically, to tubular welding wires for arc welding processes, such as Gas Metal Arc Welding (GMAW), Flux Core Arc Welding (FCAW), and Submerged Arc Welding (SAW). The tubular welding wire includes a metal sheath surrounding a granular core. The metal sheath includes greater than approximately 0.6% manganese by weight and greater than approximately 0.05% silicon by weight. Further, the metal sheath has a thickness of between approximately 0.008 inches and approximately 0.02 inches.


Patent
Hobart Brothers Company | Date: 2016-04-22

This disclosure relates generally to welding and, more specifically, to electrodes for arc welding, such as Gas Metal Arc Welding (GMAW) or Flux Core Arc Welding (FCAW) of zinc-coated workpieces. In an embodiment, a welding consumable for welding a zinc-coated steel workpiece includes a zinc (Zn) content between approximately 0.01 wt % and approximately 4 wt %, based on the weight of the welding consumable. It is presently recognized that intentionally including Zn in welding wires for welding galvanized workpieces unexpectedly and counterintuitively alleviates spatter and porosity problems that are caused by the Zn coating of the galvanized workpieces.


Patent
Hobart Brothers Company | Date: 2017-03-01

A method of forming an additively manufactured aluminum part (12) includes establishing an arc (44) between a metal-cored aluminum wire (14) and the additively manufactured aluminum part (12), wherein the metal-cored aluminum wire (14) includes a metallic sheath (62) and a granular core (64) disposed within the metallic sheath (62). The method includes melting a portion of the metal-cored aluminum wire (14) using the heat of the arc (44) to form molten droplets (18). The method includes transferring the molten droplets (18) to the additively manufactured aluminum part (12) under an inert gas flow, and solidifying the molten droplets (18) under the inert gas flow to form deposits of the additively manufactured aluminum part (12).


Patent
Hobart Brothers Company | Date: 2017-03-08

This disclosure relates generally to welding and, more specifically, to electrodes for arc welding, such as Gas Metal Arc Welding (GMAW) or Flux Core Arc Welding (FCAW) of zinc-coated workpieces. In an embodiment, a welding consumable for welding a zinc-coated steel workpiece includes a zinc (Zn) content between approximately 0.01 wt % and approximately 4 wt %, based on the weight of the welding consumable. It is presently recognized that intentionally including Zn in welding wires for welding galvanized workpieces unexpectedly and counterintuitively alleviates spatter and porosity problems that are caused by the Zn coating of the galvanized workpieces.


Patent
Hobart Brothers Company | Date: 2017-02-15

The disclosure relates generally to welding and, more specifically, to tubular welding wires for arc welding processes, such as Gas Metal Arc Welding (GMAW), Flux Core Arc Welding (FCAW), and Submerged Arc Welding (SAW). The tubular welding wire includes a metal sheath surrounding a granular core. The metal sheath includes greater than approximately 0.6% manganese by weight and greater than approximately 0.05% silicon by weight. Further, the metal sheath has a thickness of between approximately 0.008 inches and approximately 0.02 inches.


Patent
Hobart Brothers Company | Date: 2017-02-01

A system includes an engine configured to drive a generator to produce a first power output, and a first inverter communicatively coupled to the generator. The first inverter is configured to convert the first power output into a second power output. The system includes a second inverter communicatively coupled to the generator. The second inverter is configured to convert the first power output into a third power output. The third power output includes a welding power output.


Patent
Hobart Brothers Company | Date: 2015-12-04

A welding system includes a welding power source configured to provide pulsed electropositive direct current (DCEP), a gas supply system configured to provide a shielding gas flow that is at least 90% argon (Ar), a welding wire feeder configured to provide tubular welding wire. The DCEP, the tubular welding wire, and the shielding gas flow are combined to form a weld deposit on a zinc-coated workpiece, wherein less than approximately 10 wt % of the tubular welding wire is converted to spatter while forming the weld deposit on the zinc-coated workpiece.


Patent
Hobart Brothers Company | Date: 2015-08-28

A method of forming an additively manufactured aluminum part includes establishing an arc between a metal-cored aluminum wire and the additively manufactured aluminum part, wherein the metal-cored aluminum wire includes a metallic sheath and a granular core disposed within the metallic sheath. The method includes melting a portion of the metal-cored aluminum wire using the heat of the arc to form molten droplets. The method includes transferring the molten droplets to the additively manufactured aluminum part under an inert gas flow, and solidifying the molten droplets under the inert gas flow to form deposits of the additively manufactured aluminum part.


Patent
Hobart Brothers Company | Date: 2015-08-28

The present disclosure relates to a metal-cored welding wire, and, more specifically, to a metal-cored aluminum welding wire for arc welding, such as Gas Metal Arc Welding (GMAW) and Gas Tungsten Arc Welding (GTAW). A disclosed metal-cored aluminum welding wire includes a metallic sheath and a granular core disposed within the metallic sheath. The granular core includes a first alloy having a plurality of elements, wherein the first alloy has a solidus that is lower than each of the respective melting points of the plurality of elements of the first alloy.


Patent
Hobart Brothers Company | Date: 2015-04-23

Systems and methods for setting welding parameters are provided. For example, in certain embodiments, a method includes setting a material thickness of a work piece to be welded based on adjustment of a first input device of a user interface of a welding system when a second input device of the user interface is in a first position, setting a power output of the welding system based on adjustment of the first input device of the user interface of the welding system when the second input device of the user interface is not in the first position, setting a wire feed speed output of the welding system based on adjustment of the second input device of the user interface when the second input device of the user interface is not in the first position; and controlling operating parameters of the welding system in accordance with the settings of the material thickness of the work piece to be welded, the power output, and/or the wire feed speed output.

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