Provided is an epoch-making method in which an original sheet is continuously fed, and a rectangular electrode sheet with a tab can be cut out from the original sheet with a normal laser beam during the continuous feeding. The original sheet 1 is continuously moved. An ear portion 1b is separated from an electrode portion 1a with a first laser beam L1 in an ear portion separating region provided in the middle of movement of the original sheet 1, is taken up at a position where the ear portion 1b is separated, in a direction separated from a running direction of the electrode portion 1a, and the laser beam L1 is moved in the ear portion separating step to cut out a tab 5 connected to the electrode portion 1a, from the ear portion 1b. Thereafter, in the next cutting region, while tension T in the running direction of the electrode portion 1a is applied to a cut portion of the electrode portion 1a, the electrode portion 1a is cut at a predetermined interval with a second laser beam L2 to continuously form an electrode sheet 3 with the tab 5. Thereafter, the electrode sheet 3 with the tab 5 and the separated ear portion 1b are collected.

A trolley includes a body and a side block coupled to the body via a pivot arm and a spring. An adjustment knob adjusts a position of the side block relative to the body. A first plurality of rollers are coupled to the body and roll along a first roller recess on a first side of a length of a cap channel. A second plurality of rollers are coupled to the side block and roll along a second roller recess on a second side of the length of the cap channel. A first welding torch bracket positions a welding torch at a first interface between the first side of the length of the cap channel and a first deck sheet as the trolley traverses the length of the cap channel.

The invention relates a torch body for thermal joining of at least one workpiece, in particular for arc welding or arc brazing, said torch body comprising a non-consumable electrode provided in the body, in particular a tungsten electrode, for generating an arc between the electrode and the workpiece. The torch body has an end nozzle, which is devoid of potential, for discharging a shielding gas flow from a gas outlet. A secondary flow channel is provided for dividing the shielding gas flow into a main gas flow and a secondary gas flow, the secondary gas flow annularly surrounding the main gas flow at the gas outlet.

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.

A welding system can include a carriage having a top surface and a bottom surface. A first set of wheels can be coupled to the top surface of the carriage, and a second set of wheels can be coupled to the top surface of the carriage, spaced apart from the first set of wheels to create a first beam channel. The welding system can further include a first beam that includes a rack extending along a side of the first beam. The first beam can extend through the first beam channel and engage with the first and second sets of wheels. The welding system can further include a first positioning motor that includes a pinion gear. The first positioning motor is removeably coupled to the carriage such that the pinion gear is positioned to engage the rack extending along the first beam.

A welding sled, comprising a support base comprising one or more attachment points for attachment of a wire supply support and attachment of a wire drive assembly; a plurality of rollers coupled to a bottom of the support base; and a brake configured to selectively brake the welding sled.

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 weaving control method in fillet welding. On a surface perpendicular to a welding direction, a position of the welding torch is set such that a weaving reference line passes through a base point on a weld line, and at least five fixed end points are set, and positions of the fixed end points are set such that one or more of the fixed end points are provided on each of both sides across the weaving reference line and a reference end point a being on the weaving reference line and having the shortest distance between a tip and a base metal is provided. The weaving operation is performed such that the welding torch moves between the fixed end points along with a trajectory forming a polygon when viewed from the welding direction.

A severing device for mechanically severing metal-containing 3D objects from a base plate of a 3D printing apparatus is provided. The severing device has at least one first machining unit firmly connectable to the 3D printing apparatus with at least one machining tool which has a working zone which encompasses at least part of an area of the base plate.

In a method of applying a weld to a target surface, a guide rail arrangement is attached to the target, the guide rail arrangement including at least one guide rail. A weld head carriage having a carriage housing, a rail follower assembly, and a sonotrode is movably mounted to the guide rail arrangement so that the follower assembly engages each guide rail for movement there-along. The weld head carriage is positioned adjacent the target surface, feedstock material is deposited onto the target surface, and the sonotrode is extended to engage the deposited feedstock material and apply a welding force to the feedstock material and the target. Relative movement between the carriage and the guide rail arrangement is initiated and ultrasonic vibrations are conducted into the feedstock material and the target, thereby welding the feedstock material to the target surface.