A system and method of welding is provided where a first welding power supply provides a first welding waveform to a strip electrode for welding a work piece and a second welding power supply provides a second welding waveform to at least one curtain electrode for welding the work piece. The at least one curtain electrode is positioned adjacent to a side of said strip electrode during welding.

A method for forming a conformal fluid circulating passage in a mold includes providing a mold including a molding surface with an open passage thereon, the depth of the passage substantially conforming to the contour of the molding surface, the passage defining a plurality of open fluid channels including a first channel, a second channel downstream of the first channel and a third channel downstream of the second channel; and wherein each fluid channel defines a centerline that extends from the bottom of the open passage to the molding surface and a channel longitudinal centerline, and the method includes maintaining a common distance between the longitudinal centerlines and the molding surface and between the centerlines of adjacent channels.

This invention relates to a method and arrangement for manufacturing objects by solid freeform fabrication, especially titanium and titanium alloy objects, wherein the deposition rate is increased by supplying the metallic feed material in the form of a wire and employing two gas transferred arcs, one plasma transferred arc for heating the deposition area on the base material and one plasma transferred arc for heating and melting the feed wire.

The invention relates to a method for additively manufacturing, wherein an irradiation path of the impinging beam deviates during the feed from a, in particular straight, feed centre line M, wherein at least one line P parallel to M or corresponding to M is successively crossed by the irradiation path at three points P1, P2 and P3, so that applies: P2 lies further forward in the feed direction than P1 and P3 lies between P1 and P2, at a distance p1 from P1 and a distance p2 from P2, where: p2/p12.0, preferably p2/p13.5.

In preparing a built-up object by depositing beads, in a step of dividing into the bead model, a trapezoidal bead model a cross section of which is a trapezoidal shape is applied to a position where the bead is formed in a portion not adjacent to an existing bead, and a parallelogram bead model a cross section of which is a parallelogram is applied to a position where the bead is formed adjacent to a bead that is already formed, in the parallelogram bead model opposite sides in the deposition direction of the bead being parallel to each other, and opposite sides in the bead arrangement direction being parallel to a side of another bead mode that is adjacent.

Disclosed is a welding system configured to perform additive manufacturing using a controlled short circuit welding process to apply a plurality of droplets of a wire to create a multilayer part comprised of the droplets. Operational parameters of the additive manufacturing system are dynamically adjusted based on data representing a temperature value and/or a geometric characteristic of the part. Based on the data, the controller can adjust one or more operational parameters to control application of droplets to build up the part.

A sliding member includes a substrate containing Fe as a main component and an alloy layer overlaid on the substrate and composed of a Cu-base alloy containing 6 to 12% by mass of Ni and 3 to 9% by mass of Sn. The alloy layer has a body layer and an intermediate layer. The body layer is formed of the Cu-base alloy, while the intermediate layer is composed of an alloy containing Ni, Sn, and Cu which are derived from the Cu-base alloy and Fe derived from the substrate. Taking side close to the substrate as a lower region and the other side as an upper region, a ratio of the total area of hard phases to the observation section of the upper region is 1.2 to 3.0, where the ratio of the total area of the hard phases to the observation section of the lower region is set at 1.

A system and method for wire-arc additive manufacturing to provide a wire-arc additive manufacturing device having a self-shielding system with a gantry and a computer numerical control type control system which enables precise infill patterns not normally obtainable with robotic control, whereby the additive manufacturing system includes a metal deposition device configured to deposit a metal material during an additive manufacturing process, whereby a controller may be operatively coupled to the metal deposition device to command the metal deposition device to deposit an infill pattern based on one or more stored patterns.

A system and method for dual-twin SAW cladding is disclosed. The method includes arranging a first twin SAW head in close proximity to a second twin SAW head, delivering electroslag flux to a surface of a workpiece to create a layer of electroslag flux atop the workpiece, directing two first consumable wires through the first twin SAW head towards the surface of the workpiece, directing two second consumable wires through the second twin SAW head towards the surface of the workpiece, introducing the two first consumable wires and the two second consumable wires into a molten slag pool formed on the surface of the workpiece to melt the two first consumable wires and the two second consumable wires via resistive heating, and translating the first twin SAW head and the second twin SAW head together to form a cladded deposit on the workpiece.

A method for producing a structural component is provided. The structural component is formed by a base element. The method includes providing at least one insert part as part of the base element, and geometrically widening the at least one insert part to form the base element with the layered construction of at least one remaining element section on the at least one insert part by way of wire-based welding.