An additive manufacturing apparatus forms layers with a material that is molten to produce a formed object. The additive manufacturing apparatus includes a CMT power supply that supplies as a power supply current to heat a wire that is the material fed to a workpiece, to the material; a laser oscillator that produces as a beam source a laser beam that is a beam with which the workpiece is irradiated; and a head drive unit that shifts as a drive unit a feed position for the material on the workpiece and an irradiation position for the beam on the workpiece. The additive manufacturing apparatus shifts the feed position and the irradiation position, with the irradiation position leading in a moving path for the feed position in spaced relation to the feed position.

A hybrid welding device capable of reducing an influence of by-products such as spatters, plasma, plumes, and fume, and reducing contamination of a laser optical system and welding defects is provided. A laser head includes a laser nozzle that forms an optical path of a laser beam, a first rectifying plate that is arranged on a tip side of the laser nozzle so as not to interfere with the laser beam, a first air knife that injects compressed air along the first rectifying plate, a second rectifying plate that is arranged between the first rectifying plate and the welded portion so as not to interfere with the laser beam, and a second air knife that injects compressed air along the second rectifying plate. The first rectifying plate and the second rectifying plate have a shape elongated in a direction perpendicular to an optical axis of the laser beam and a welding direction. The second rectifying plate has a torch opening through which a tip of a welding torch can be inserted.

A hybrid welding device capable of reducing an influence of by-products such as spatters, plasma, plumes, and fume, and reducing contamination of a laser optical system and welding defects is provided. A laser head includes a laser nozzle that forms an optical path of a laser beam, a first rectifying plate that is arranged on a tip side of the laser nozzle so as not to interfere with the laser beam, a first air knife that injects compressed air along the first rectifying plate, a second rectifying plate that is arranged between the first rectifying plate and the welded portion so as not to interfere with the laser beam, and a second air knife that injects compressed air along the second rectifying plate. The first rectifying plate and the second rectifying plate have a shape elongated in a direction perpendicular to an optical axis of the laser beam and a welding direction. The second rectifying plate has a torch opening through which a tip of a welding torch can be inserted.

A lap fillet weld joint and a lap fillet weld joint manufacturing method are provided. On a side of a first edge, a first metal plate is provided with a bulging portion that has an internal space of a prescribed size, and a second metal plate has a protruding portion that faces to the bulging portion and can be inserted into the bulging portion. In a state in which the protruding portion has been inserted into the bulging portion, the first metal plate and a second edge of the second metal plate are welded, and a first weld bead is formed.

A lap fillet weld joint and a lap fillet weld joint manufacturing method are provided. On a side of a first edge, a first metal plate is provided with a bulging portion that has an internal space of a prescribed size, and a second metal plate has a protruding portion that faces to the bulging portion and can be inserted into the bulging portion. In a state in which the protruding portion has been inserted into the bulging portion, the first metal plate and a second edge of the second metal plate are welded, and a first weld bead is formed.

The disclosure relates to the field of wire arc additive manufacturing, and specifically discloses a wire arc additive manufacturing method for a high-strength aluminum alloy component, equipment and a product. A high-strength aluminum alloy is modified by using a MXene nanomaterial, and wire arc additive manufacturing is performed by using the modified high-strength aluminum alloy as a raw material, and a nanosecond laser beam is applied during the wire arc additive manufacturing to achieve an enhanced arc cathode atomization cleanup function to remove impurities, thus obtaining a high-strength aluminum alloy component without defects. The disclosure can solve the problem of very difficult forming in wire arc additive manufacturing of a high-strength aluminum alloy, and also solve the problems of many pores, liability to crack and lots of impurities during additive manufacturing of the high-strength aluminum alloy, so that a high-strength aluminum alloy component without defects can be produced.

A hot-pressed member is formed using a tailored blank material obtained by butt joining respective ends of two or more coated steel sheets. The hot-pressed member has two or more sites formed by the respective coated steel sheets and at least one joining portion between the sites. Depending on a type of a coated layer of each of the coated steel sheets, t.sub.w/t.sub.0 is appropriately controlled where t.sub.w is a thickness of a thinnest portion in the joining portion and t.sub.0 is a thickness of a thinnest site of the sites. A tensile strength of each of the sites is 1180 MPa or more.

A hot-pressed member is formed using a tailored blank material obtained by butt joining respective ends of two or more coated steel sheets. The hot-pressed member has two or more sites formed by the respective coated steel sheets and at least one joining portion between the sites. Depending on a type of a coated layer of each of the coated steel sheets, t.sub.w/t.sub.0 is appropriately controlled where t.sub.w is a thickness of a thinnest portion in the joining portion and t.sub.0 is a thickness of a thinnest site of the sites. A tensile strength of each of the sites is 1180 MPa or more.

Provided are a systems and methods for manufacturing objects by solid freeform fabrication, especially titanium and titanium alloy objects, wherein the deposition rate is increased by using two separate heat sources, one heat source for heating the deposition area on the base material and one heat source for heating and melting a metallic material, such as a metal wire or a powdered metallic material.

Provided are a systems and methods for manufacturing objects by solid freeform fabrication, especially titanium and titanium alloy objects, wherein the deposition rate is increased by using two separate heat sources, one heat source for heating the deposition area on the base material and one heat source for heating and melting a metallic material, such as a metal wire or a powdered metallic material.