A plasma cutting system includes a plasma cutting table. A gantry is movable along the plasma cutting table in a first direction. A torch carriage is movable along the gantry in a second direction that is perpendicular to the first direction. A torch holder is attached to the torch carriage and includes a motor having a hollow shaft rotor. A plasma cutting torch is attached to the hollow shaft rotor for 360 degree rotation by the hollow shaft rotor around an axis of the plasma cutting torch.

The presently disclosed technology includes a friction stir welding apparatus comprising a frame, a moving platform and a parallel mechanism composed of three branch mechanisms, wherein a first branch mechanism comprises a first sliding pair, a first revolute pair, a telescopic rod and a first spherical pair connected in sequence. A second branch mechanism and a third branch mechanism both comprise a third sliding pair, a second revolute pair, a third linkage and a second spherical pair connected in sequence. The friction stir welding apparatus has high stiffness, low inertia, high dynamic performance and high accuracy, which can achieve precision welding with high requirements on processing quality and accuracy for jointing annular seams of large-scale rocket fuel storage tank barrels in the aviation field, for example. The presently disclosed technology also includes a corresponding friction stir welding system.

The automated ride-on stud welder eliminates the fatigue and hazards associated with stud welding by having a motor which powers a hydraulic system and a set of tracks. A seat is coupled to the automated ride-on stud welder and controls are used to direct its movement. A bulk stud storage bin stores various types of studs. These studs are moved into position via a stud track that loads studs into the stud welding system that is attached to the gantry. In addition, there is a stud attachment mechanism for ease of attaching studs to a welding surface.

A welding device for gas shielded arc welding includes: a portable welding robot mounted with a welding torch including a nozzle that guides jetting of shielding gas and a contact tip that performs energization on a consumable electrode; a feeding device that supplies the consumable electrode to the welding torch; a welding power source that supplies electric power to the consumable electrode via the contact tip; a gas supply source that supplies the shielding gas to be jetted from a nozzle end; and a control device that controls the portable welding robot. When the welding torch is seen from a side of jetting of the shielding gas, the contact tip is placed in an inside of an opening of the nozzle, the nozzle and the contact tip have a relatively movable structure, and an inner diameter of the nozzle end is within a range of 10-20 mm.

A method of manufacturing a metallic part in a weldable material by solid freeform fabrication unrestricted in size and open to the ambient atmosphere. The method comprises generating a computer-generated, three dimensional model of the part, slicing the computer-generated three dimensional model into a set of computer-generated, parallel, sliced layers and then dividing each layer into a set of computer-generated, virtual, one-dimensional pieces and, with reference to layered weld-bead geometry data, forming a computer-generated, direction specific, layered model of the part. The method also comprises uploading the direction specific, layered model of the part into a welding control system able to control the position and activation relative to a support substrate, of an electric arc delivered by a high energy tungsten arc welding torch, a plasma transferred arc welding torch, and/or a gas metal arc welding torch, and a system for feeding a consumable wire placed in an open area build space relevant to the substrate unrestricted in size and open to the ambient atmosphere. The method also comprises directing the welding control system to deposit a sequence of one-dimensional weld beads of the weldable material onto the supporting substrate in a pattern required to form a first layer of the computer-generated, direction specific, layered model of the part, and depositing a second welded layer by sequencing one-dimensional weld beads of the weldable material onto the previous deposited layer in a configuration the same as the second layer of the computer-generated direction specific layered model of the part, and repeating each successive weld bead layer of the computer-generated, direction specific, layered model of the part until the entire part is completed. The method further includes one or both of displacing the atmosphere within the immediate vicinity of the heat source with an inert gas atmosphere which produces a required flow rate, and in which that inert atmosphere contains a maximum oxygen concentration, wherein the inert gas is delivered by an apparatus through a matrix of individual gas diffusers and/or a filter; and engaging an induction heating and closed loop cooling apparatus synergic to a welding control system and pre-heating the substrate material including the deposited weld beads, relevant to the type of weldable material, wherein induction heating and cooling cycles are applied constantly or pulsed from the first layer to the final layer, where optimal heating and/or cooling cycles of the weldable material are relative to the final desired part shape and microstructure.

A scrap cutting apparatus including an enclosure comprising two open sides, two closed sides, an open bottom, and a closed top, wherein at least one opening is provided in at least one of closed sides, at least one torch extending through the at least one opening, and a rail system comprising two parallel rails, wherein the enclosure is adapted to move along the rail system. Also, a method of cutting metal scrap including positioning a plurality of pieces of scrap material between the rails of the scrap cutting apparatus described above, moving the enclosure over a first piece of scrap material, making at least one cut in the first piece of scrap material using the at least one torch, moving the enclosure along the rail system and over a second piece of scrap material, and making at least one cut in the second piece of scrap material using the torch.

A welding device for welding a workpiece using a welding robot includes a welding control device that controls operation of the welding robot and a preheating device that preheats the workpiece. The welding control device includes an input unit through which at least one or both of dimensions of the workpiece and a shape of a welding joint, and preheating information are inputted, and a storage unit that includes at least welding robot operation orbit teaching data, welding condition data, and preheating condition data. The welding control device automatically provides a preheating condition, a welding robot operation orbit, and a welding condition for the welding joint to be welded, and preheating and welding are performed.

A method for automated circumferential welding of a workpiece by means of at least one welding device, including: (a) determining a further weld path for a further weld to be welded on the workpiece, the further weld extending from a start point, via a downstream part to a stop point, (b) determining first welding parameters associated with the further weld and adapted to weld the further weld on the workpiece, the first welding parameters are adapted to transfer a first level of heat to the workpiece, (c) identifying at least one overlap area in the further weld path between the downstream part and the start point of the further weld or between the further weld and a start or stop point of a previous weld, (d) determining a boost area, the boost area including the at least one overlap area, (e) determining boost welding parameters associated with the boost area and adapted to weld the further weld in the boost area, the boost welding parameters are adapted to transfer a second level of heat to the workpiece, the second level of heat exceeding the first level of heat, and (f) welding the further weld from the start point to the stop point thereof, the first welding parameters are selected for welding of the further weld outside the boost area, and the boost welding parameters are selected for welding the further weld inside the boost area.

A pressing system for a laser joining system for pressing together parts to be joined (storage cell, base plate) in the area of a joining point, includes a receptacle for accommodating the parts to be joined, a pressing element for locally pressing together the parts to be joined, in the area of the joining point, and a positioning system for the relative positioning of the pressing element and the receptacle and for pressing together the parts to be joined, during the joining process. The positioning system includes a parallel positioning device for the relative positioning of the receptacle and the pressing element in parallel to a plane (E), and an oblique positioning device for the relative positioning of the pressing element and the receptacle obliquely, in particular transversely, with respect to the plane (E) and for pressing together the parts to be joined, during the joining process.

The present invention discloses an adaptive and rapid repairing device for single roller, which includes a working module and a mechanical arm module, which are fixedly connected, where the mechanical arm module is connected with a movable module; the working module includes a supporting frame, symmetrical dovetail grooves are opened in two sides of the supporting frame, the dovetail grooves are movably connected with four sliding supports symmetrically arranged along the supporting frame; a connecting rod support penetrates the two through holes opened in the top of the sliding support, the top end of the connecting rod support is hinged with a long connecting rod; the supporting frame is provided with a worm gear mounting support, the worm gear mounting support is equipped with worm gears and worms through rotating shafts, and the worm is fixedly connected with an output shaft of a worm motor.