A method of attaching a first metal object to a second metal object is presented. The first metal object and the second metal object are dissimilar materials. The first metal object comprises an upper surface and a lower surface. The method comprises: positioning the first metal object in intimate contact with the second metal object such that the second metal object is in contact with the lower surface of the first metal object; identifying at least one attachment location on the upper surface of the first metal object where the first metal object is in intimate contact with the second metal object; adding a powdered metal on the upper surface of the first metal object at the at least one attachment location; and firing a heat source at the powdered metal to melt the powdered metal and drive the melted powdered metal through the first metal object and into the second metal object.

A method of attaching a first metal object to a second metal object is presented. The first metal object and the second metal object are dissimilar materials. The first metal object comprises an upper surface and a lower surface. The method comprises: positioning the first metal object in intimate contact with the second metal object such that the second metal object is in contact with the lower surface of the first metal object; identifying at least one attachment location on the upper surface of the first metal object where the first metal object is in intimate contact with the second metal object; adding a powdered metal on the upper surface of the first metal object at the at least one attachment location; and firing a heat source at the powdered metal to melt the powdered metal and drive the melted powdered metal through the first metal object and into the second metal object.

Dynamic range enhancement methods and systems for display for use welding applications are disclosed. An example display system in a dynamic range enhancement system includes: a first filter disposed in a first path; a second filter disposed in a second path, wherein the second filter has a lower density than the first filter, at least one of the first filter or the second filter configured to provide variable lens shading; a first image sensor disposed in the first path and configured to receive filtered electromagnetic waves from the first filter; a second image sensor disposed in the second path and configured to receive filtered electromagnetic waves from the second filter; and a graphical circuit configured to combine signals from the first image sensor and the second image sensor.

Dynamic range enhancement methods and systems for display for use welding applications are disclosed. An example display system in a dynamic range enhancement system includes: a first filter disposed in a first path; a second filter disposed in a second path, wherein the second filter has a lower density than the first filter, at least one of the first filter or the second filter configured to provide variable lens shading; a first image sensor disposed in the first path and configured to receive filtered electromagnetic waves from the first filter; a second image sensor disposed in the second path and configured to receive filtered electromagnetic waves from the second filter; and a graphical circuit configured to combine signals from the first image sensor and the second image sensor.

Cladding strip feeders having independent pressure rollers and strip cladding systems with cladding strip feeders having independent pressure rollers are disclosed. A disclosed example cladding strip feeder for a strip cladding system includes: a drive roller to advance a cladding strip along a strip feed path through contact plates; a first pressure roller positioned along the strip feed path opposite a first section of the drive roller; a second pressure roller positioned along the strip feed path opposite a second section of the drive roller; a third pressure roller positioned along the strip feed path opposite a third section of the drive roller; a first pressure adjuster to set a first pressure applied to the cladding strip by the first pressure roller and the first section of the drive roller; a second pressure adjuster to set a second pressure applied to the cladding strip by the second pressure roller and the second section of the drive roller; and a third pressure adjuster to set a third pressure applied to the cladding strip by the third pressure roller and the third section of the drive roller, the first pressure roller, the second pressure roller, and the third pressure roller being configured to apply symmetric pressure across a width of the cladding strip by selectively setting at least one of the second pressure adjuster to apply the second pressure or the third pressure adjuster to apply the third pressure based on the cladding strip having one of at least three incremental strip widths.

Granular welding flux delivery devices and strip cladding systems with granular welding flux delivery devices are disclosed. A disclosed example granular welding flux delivery device includes a hopper having: an intake opening to receive granular welding flux; a chute; and an output opening to output the granular welding flux to an electroslag strip cladding process, a submerged arc welding process, or a submerged arc strip cladding process. The example granular welding flux delivery device further includes a chute divider positioned within the chute to reduce an intake rate of granular material through the intake opening by reducing a cross-section of the chute based on a dimension of the chute divider. The disclosed example granular welding flux delivery device includes an adjustable output cover attached to the chute proximate to the output opening to extend or retract a length of the chute by adjusting a location of the output opening along the chute.

A welded product includes: multiple steel members; and one or two or more welds with which the multiple steel members are welded together, at least one of the welds having a surface containing slag, the slag having a Si content of 14% by mass or less and having a mass ratio of Si to Mn of 0.25 or less.

A welded product includes: multiple steel members; and one or two or more welds with which the multiple steel members are welded together, at least one of the welds having a surface containing slag, the slag having a Si content of 14% by mass or less and having a mass ratio of Si to Mn of 0.25 or less.

Strip cladding heads and strip cladding systems are disclosed. A disclosed example strip feeder for a strip cladding system includes; a drive roller to advance a cladding strip along a strip feed path through contact plates; a first guide rail having a first slot extending across an entirety of the strip feed path; a first adjustable bearing and a second adjustable bearing located within the first slot, the first adjustable bearing and the second adjustable bearing capable of being secured at positions within the first slot using corresponding first and second strip width adjusters; a second guide rail having a second slot extending across an entirety of the strip feed path and positioned at a different location than the first guide rail along the strip feed path; and a third adjustable bearing and a fourth adjustable bearing located within the second slot, the third adjustable bearing and the fourth adjustable bearing capable of being secured at positions within the second slot using corresponding third and fourth strip width adjusters, the first, second, third, and fourth strip width adjusters to, when secured, define a location and a width of an effective strip feed path.

Stopping electroslag strip cladding operations feeding multiple strips includes detecting, during a welding phase of an electroslag welding operation feeding a first strip and a second strip towards a molten slag pool formed on a work piece, initiation of a stop phase. Upon detection the feeding of the first strip towards the molten slag pool is stopped. Additionally, a feed direction of the feeding of the second strip is reversed to retract the second strip away from the molten slag pool.