This steel sheet is a steel sheet (100) formed by causing end surfaces of a first sheet material (111) and a second sheet material (113) to abut each other in an in-plane direction and welding the first sheet material (111) and the second sheet material (113) via a strip-shaped welded part (115), and in which a softened part (120) that is softened more than other parts in the welded part (115) is formed in at least a part of the welded part (115), and on a first end surface of the steel sheet in which an end part of the welded part (115) in a longitudinal direction is formed, a region in which the softened part (120) is not formed is provided in at least a part of the end part of the welded part (115) in the longitudinal direction, and a maximum value of a depth of the softened part (120) in a sheet thickness direction is, as a ratio to a sheet thickness of the steel sheet (100), 50% or less.

This steel sheet is a steel sheet (100) formed by causing end surfaces of a first sheet material (111) and a second sheet material (113) to abut each other in an in-plane direction and welding the first sheet material (111) and the second sheet material (113) via a strip-shaped welded part (115), and in which a softened part (120) that is softened more than other parts in the welded part (115) is formed in at least a part of the welded part (115), and on a first end surface of the steel sheet in which an end part of the welded part (115) in a longitudinal direction is formed, a region in which the softened part (120) is not formed is provided in at least a part of the end part of the welded part (115) in the longitudinal direction, and a maximum value of a depth of the softened part (120) in a sheet thickness direction is, as a ratio to a sheet thickness of the steel sheet (100), 50% or less.

The disclosure provides a wheel. The wheel includes: a rim (10), a surface of an axial end of the rim (10) forming a first connecting surface (11); a spoke (20), a part of a surface of an axial end of the spoke (20) forming a second connecting surface (21), wherein the spoke (20) is laser welded with the first connecting surface (11) by the second connecting surface (21); and a welding bead structure (100) for fixedly connecting the rim (10) and the spoke (20) is formed at a contact position between the first connecting surface (11) and the second connecting surface (21), and the welding bead structure (100) is formed by a part of the rim (10) and a part of the spoke (20) being melted and then connected.

The present disclosure provides a replacement bottom kit and system that is adaptable to a wide range of designs, makes, and sizes of commercial waste containers or dumpsters that are currently in use. This will significantly reduce the complexity and cost of the refurbishing process and provide significant long-term environmental benefits. A replacement bottom kit for a dumpster may include a dumpster bottom piece comprising low carbon steel, the dumpster bottom piece including four sides integral with the dumpster bottom piece and bent at approximately 75-90 degrees with respect to the bottom and wherein the size of the dumpster bottom is about 72-73 inches on one side and from about 24 inches to about 52 inches on another side, a corner bracket, and a quick release caster pad.

The present disclosure provides a replacement bottom kit and system that is adaptable to a wide range of designs, makes, and sizes of commercial waste containers or dumpsters that are currently in use. This will significantly reduce the complexity and cost of the refurbishing process and provide significant long-term environmental benefits. A replacement bottom kit for a dumpster may include a dumpster bottom piece comprising low carbon steel, the dumpster bottom piece including four sides integral with the dumpster bottom piece and bent at approximately 75-90 degrees with respect to the bottom and wherein the size of the dumpster bottom is about 72-73 inches on one side and from about 24 inches to about 52 inches on another side, a corner bracket, and a quick release caster pad.

A screw element of a ball screw mechanism includes a lead screw which, at an axial end, is joined to a rod element using a friction welding process. In order to improve the friction-welded joint, prior to the friction welding process, the lead screw has a circumferential groove on the end face facing the rod element.

A method of resistance spot welding a stacked assembly of dissimilar workpieces. The stack assembly includes a first workpiece formed of a first alloy, a second workpiece formed of a second alloy, and a third workpiece formed of a third alloy sandwiched between the first workpiece and the second workpiece. The third alloy includes a lower resistivity than the first alloy and a lower resistivity than the second alloy. A faying interface is defined by a portion of the first workpiece in direct contact with a portion of the second workpiece through the third workpiece. A weld nugget, a braze, or a combination of a weld nugget and a braze joins the first workpiece to the second workpiece at the faying interface. An annular ring of re-solidified molten pool of third alloy surrounds the faying interface and a region of re-solidified partially melted third alloy surrounding the annular ring.

Provided is a laser-weld manufacturing method. The method includes: providing a first component and a second component that are separated from one another by a gap, the gap having a depth and a width and at least one of the first component and the second component having a sacrificial edge-tab; exposing the sacrificial edge-tab to laser energy, the laser energy being sufficient to melt at least a portion of the sacrificial edge-tab; forming a melt-pool in the gap between the first component and the second component, the melt-pool including material from the melted portion of the sacrificial edge-tab; and solidifying the melt-pool to form a weld that joins the first component and the second component together.

Provided is a laser-weld manufacturing method. The method includes: providing a first component and a second component that are separated from one another by a gap, the gap having a depth and a width and at least one of the first component and the second component having a sacrificial edge-tab; exposing the sacrificial edge-tab to laser energy, the laser energy being sufficient to melt at least a portion of the sacrificial edge-tab; forming a melt-pool in the gap between the first component and the second component, the melt-pool including material from the melted portion of the sacrificial edge-tab; and solidifying the melt-pool to form a weld that joins the first component and the second component together.

The present disclosure relates to a weld groove forming method and a hollow article. The weld groove forming method may include: (S110) determining whether a side end of a pipe may be processed into a form of a true circle by using a sensor robot; and (S220) forming a weld groove in a form of a true circle at the side end of the pipe by using an automatic beveling machine when the sensor robot determines that the side end of the pipe may be processed into a form of a true circle in the step (S110).