Disclosed is a portable spot welder. The spot welder includes a control board; a battery connected to the control board; an analog-to-digital converter (ADC) detection module connected to the control board; a power metal oxide semiconductor (MOS) module connected to the battery; an optical-coupler isolation driving module connected to the power MOS module and the control board; a battery protection module connected to the battery and the control board; a power supply module connected to the battery protection module and the control board; and a soldering iron module connected to the battery protection module and provided with spot welding pen interfaces. The spot welder can be connected to an external spot welding pen for use or used as an emergency power bank. A safety coefficient is improved, risks of overheating, overcurrent and a short circuit of a portable spot welder body are reduced, and a size is reduced.

A joining system (100) of the present invention is for joining a joining target (W) including first, second, and third members (W1), (W2), (W3), and includes a welder (101), a friction stir welding machine (102), and a controller (110) that: (A) causes the welder (101) to weld the second and third members (W2), (W3); (B), after (A), causes the joining target (W) to be placed at the friction stir welding machine (102) so that the first member (W1) is opposed to a distal end of a tool (10); and (C), after (B), controls a linear motion driver (7) and a rotation driver (8) so as to, while pressing the distal end of the tool (10) to the joining target (W), rotate the tool (10) around an axis, so that the softened second and third members (W2), (W3) intrude into the softened first member (W1), thus joining the joining target (W).

A fusion welding device includes: a robot arm; a fusion welding hand attached to the robot arm and including a fusion welding head for fusing and joining together workpieces while being separated from the workpieces; a support provided to the fusion welding hand and abutting on the workpieces; a force sensor for detecting a force and a moment exerted, through the support, by the workpieces; and a control section configured to control motion of the robot arm in accordance with parameters calculated from a signal outputted from the force sensor.

A metal cutting device, including a main body, a plurality of legs pivotally disposed on at least a portion of the main body to suspend the main body over a surface, a handle assembly removably connected to at least a portion of the main body to facilitate gripping thereof, and a torch removably connected within at least a portion of the main body to cut the surface in response to contact with the surface.

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.

In various examples, a computer-implemented method of generating instructions for a welding robot. The computer-implemented method comprises identifying an expected position of a candidate seam on a part to be welded based on a Computer Aided Design (CAD) model of the part, scanning a workspace containing the part to produce a representation of the part, identifying the candidate seam on the part based on the representation of the part and the expected position of the candidate seam, determining an actual position of the candidate seam, and generating welding instructions for the welding robot based at least in part on the actual position of the candidate seam.

Moving unit for moving two soldering assemblies connected by means of a coupling device, soldering system for selective wave soldering of circuit boards with such a moving unit, and associated method.

A robotic shear stud welding system includes a stud feeder, a ferrule feeder, at least one work zone, a robot, and a welding gun. The stud feeder is configured to hold a plurality of studs and feed a single stud therefrom. The ferrule feeder is configured to hold a plurality of ferrules and feed a single ferrule therefrom. The robot has a controllable arm that is configured to accurately move between the stud feeder, the ferrule feeder, and each of the at least one work zones. The welding gun is attached to the distal end of the controllable arm. The welding gun is configured to pick up the single stud from the stud feeder, pick up the single ferrule from the ferrule feeder and position the single ferrule at a bottom of the single stud, and shoot the single stud to a workpiece in one of the at least one work zones.

A portable advanced process module system includes, for example, a welding power source, an portable advanced process module, and a wire feeder. The portable advanced process module and the wire feeder are separately enclosed in suitcase style enclosures with disconnectable power and communication means between the portable advanced process module and the wire feeder. The processing unit includes power electronics to enable advanced weld processes that can be delivered to the wire feeder and a welding work piece. The portable advanced process module is powered by a DC bus that can be supplied by a welding power source. Connecting the portable advanced process module between the welding power source and the wire feeder enables advanced welding processes to be accomplished at great distances from the main welding power source. Separating the power electronics into the portable advanced process module and maintaining a standard suitcase wire feeder form factor keeps the welding equipment used in the working area envelope small, light, and portable.

A portable advanced process module system includes, for example, a welding power source, an portable advanced process module, and a wire feeder. The portable advanced process module and the wire feeder are separately enclosed in suitcase style enclosures with disconnectable power and communication means between the portable advanced process module and the wire feeder. The processing unit includes power electronics to enable advanced weld processes that can be delivered to the wire feeder and a welding work piece. The portable advanced process module is powered by a DC bus that can be supplied by a welding power source. Connecting the portable advanced process module between the welding power source and the wire feeder enables advanced welding processes to be accomplished at great distances from the main welding power source. Separating the power electronics into the portable advanced process module and maintaining a standard suitcase wire feeder form factor keeps the welding equipment used in the working area envelope small, light, and portable.