Hobart Brothers Co.

Troy, OH, United States

Hobart Brothers Co.

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: 2017-01-03

The present disclosure provides a welding system having a welder, a welding gun, and a welding gun adapter, the welding gun being a spool gun with an attached motor. The welding gun adapter receives welding power from the welder, and converts it to output power suitable for driving the motor of the welding gun. The welding gun adapter also uses received welding power from the welder for control power. The present techniques allow for the use of welding guns requiring motor power to be used with any ordinary welder.


Patent
Hobart Brothers Company | Date: 2015-11-23

Present embodiments include an additive manufacturing tool configured to receive a metallic material and to supply a plurality of droplets to a part at a work region of the part, wherein each droplet of the plurality of droplets comprises the metallic material and a heating system comprising a primary laser system configured to generate a primary laser beam to heat a molten zone of a substrate of the part and a secondary laser system configured to generate a secondary laser beam to heat a transition zone of the substrate of the part, wherein the molten zone and the work region are colocated, and wherein the transition zone is disposed about the molten zone.


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: 2017-06-07

A welding system (10) includes a welding power source (30) configured to provide pulsed electropositive direct current (DCEP), a gas supply system (16) configured to provide a shielding gas flow that is at least 90% argon (Ar), a welding wire feeder (14) 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 (22), 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 (22).


Patent
Hobart Brothers Company | Date: 2017-02-17

A composition for welding or brazing aluminum comprises silicon (Si) and magnesium (Mg) along with aluminum in an alloy suitable for use in welding and brazing. The Si content may vary between approximately 5.0 and 6.0 wt %, and the Mg content may vary between approximately 0.15 wt % and 0.50 wt %. The alloy is well suited for operations in which little or no dilution from the base metal affects the Si and/or Mg content of the filler metal. The Si content promotes fluidity and avoids stress concentrations and cracking. The Mg content provides enhanced strength. Resulting joints may have a strength at least equal to that of the base metal with little or no dilution (e.g., draw of Mg). The joints may be both heat treated and artificially aged or naturally aged.


Patent
Hobart Brothers Company | Date: 2016-11-22

The present 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). A welding consumable includes a metallic sheath surrounding a granular core. The welding consumable includes: approximately 0.35 wt % or less manganese, between approximately 0.1 wt % and approximately 3 wt % nickel, between approximately 2.5 wt % and approximately 10 wt % calcined rutile; and between approximately 0.1 wt % and approximately 2 wt % spodumene, all based on the weight of the welding consumable.


Patent
Hobart Brothers Company | Date: 2017-06-21

The present disclosure relates generally to welding alloys and, more specifically, to welding consumables (e.g., welding wires and rods) for arc welding operations. In an embodiment, a welding consumable includes less than approximately 1 wt% manganese as well as one or more strengthening agents selected from the group: nickel, cobalt, copper, carbon, molybdenum, chromium, vanadium, silicon, and boron. The welding consumable also includes one or more grain control agents selected from the group: niobium, tantalum, titanium, zirconium, and boron, wherein the welding consumable includes less than approximately 0.6 wt% grain control agents. Additionally, the welding consumable has a carbon equivalence (CE) value that is less than approximately 0.23. The welding consumable is designed to provide a manganese fume generation rate that is less than approximately 0.01 grams per minute during a welding operation.

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