A component includes a substrate configured to receive tensile stress in a first direction. The substrate includes a recess defined therein on a surface. The recess includes a first portion having a first width defined in a second direction. The recess also includes a second portion having a second width defined substantially parallel to the second direction, and a third portion between the first and second portions along the first direction. The third portion having a third width defined substantially parallel to the second direction such that each of the first width and the second width is different than the third width. The component further includes an insert coupled to the substrate. A perimeter of the insert is sized substantially identically to a perimeter of the recess such that the insert is received within the recess in a clearance fit.

Features herein relate to an electric arc welding method for creating a multi-pass welded joint comprising the following steps: a first stand-alone toe weld on a first construction element, then, arranging the first construction element and a second construction element in a joining position, with a distance being present between the first stand-alone toe weld and a root area of the welded joint to be created, while maintaining the joining position, making a first weld connection between the first construction element and the second construction element by applying a root pass at the root area, then, applying one or more filling beads, wherein the first stand-alone toe weld, the root pass and the one or more filling beads together form part of the welded joint, wherein the first stand-alone toe weld forms the toe of said welded joint at the side of the first construction element.

A laser welding method of the present disclosure includes a first step and a second step. In the first step, a first end of a first workpiece is positioned such that the first end of the first workpiece is overlapped on a second end of a second workpiece to form a corner joint. In the second step, the first end forming the corner joint is irradiated from above with a laser beam. Additionally, the first end is positioned to protrude relative to the second workpiece in the first step.

A wire includes, in terms of % by mass with respect to a total mass of the wire, as a total in a steel outer skin and a flux, 0.03 to 0.09% of C, 0.1 to 0.6% of Si, 1.3 to 2.6% of Mn, 0.01 to 0.5% of Cu, 0.05 to 0.5% of Ti, 0.002 to 0.015% of B, and 0.05% or less of Al, and further including, in the flux, 5 to 9% in terms of TiO.sub.2, 0.1 to 0.6% of in terms of SiO.sub.2, 0.02 to 0.3% in terms of Al.sub.2O.sub.3, 0.1 to 0.8% of Mg, 0.05 to 0.3% in terms of F, 0.05 to 0.3% in terms of Na and K in a fluorine compound, 0.05 to 0.2% of Na.sub.2O and K.sub.2O, and 0.1% or less in terms of ZrO.sub.2.

An article is provided and includes a first part having a first edge defined at an intersection of first and second surfaces where the first and second surfaces form a first angle, a second part having a second edge defined at an intersection of third and fourth surfaces where the third and fourth surfaces form a second angle which is different from the first angle and a weld joint formed at locations where the first surface contacts the third surface.

A method for gas tungsten arc welding (GTAW) of nickel-aluminide is provided. The method includes machining a weld groove having a width from 1 to 2 mm on an outer surface, a weld groove angle with a vertical being less than 30; and a root face being not longer than 3 mm. During welding, a measured temperature 30 cm (12) from a weld torch and 3 mm from the weld groove edge should not exceed 200 C.; and an interpass temperature should be less than 85 C. measured at 3 mm from the weld groove edge. With exception of the root pass, all filler and cap pass layering should start from the nickel-aluminide edge, each bead should be peened; and the weld cap pass should overlap on the nickel-aluminide surface edge by at least 3 mm. The weld bead layout at the nickel-aluminide edge should be laid at torch angle less than 30, and the weld heat input should be in the range of 17 to 23 kJ/in. The linear welding speed is greater than 8.6 cm/min and a deposition rate should be greater than 3.0 cm.sup.3/min.

This heat exchanger includes a core and a header tank. The entire peripheral edge of an opening of the header tank welded to the core has a bevel inclined from the internal surface of the header tank toward the external surface thereof at a predetermined bevel angle. At least a portion of the peripheral edge of the opening of the header tank has a second inclined portion inclined from the external surface of the header tank toward the internal surface thereof at an angle larger than the predetermined bevel angle.

A weld with a stepped configuration is provided. The stepped configuration may be machined from a substrate to form a weld preparation which may accommodate a stepped weld. The weld with a stepped configuration and a controlled procedure exhibits improved service life and improved damage tolerance. A welded joint with a stepped configuration, a joined component with a stepped configuration, and method of welding a stepped configuration are also provided.

Provided is a brazed aluminum member brazed with a member formed of a brazing sheet, in which two or more grooves are provided on a surface of the brazed aluminum member in a fillet forming area, a groove depth (D1) of the grooves is 0.005 mm to 0.50 mm, a groove width (W1) of the grooves is 0.005 mm to 0.50 mm, a ratio (W1/D1) of the groove width (W1) to the groove depth (D1) is 10.00 or less, and a space (P1) between adjacent grooves is 0.00 mm to 0.30 mm. The present invention can provide an aluminum material and a method for producing a brazed product that can secure good brazing properties even when the clearance between the jointed members is large in the case where the aluminum material is brazed without using a flux.

A high-heat-input combined welding method for thick-walled high-strength steel includes following steps. First, a steel plate to be welded is machined into an asymmetric double-sided V-groove, with a depth of a front groove ranging from 30 mm to 40 mm. Then, electrogas welding is used to fill and weld the front groove, with a single-pass heat input controlled below 300 KJ/cm. Finally, a back groove is filled and welded, ensuring that the single-pass heat input for the back groove does not exceed that of the front groove. By adopting an asymmetric double-sided V-groove, the steel plate to be welded is divided into front and back sections. The depth of the groove is restricted to limit the heat input during filling welding.