Methods and apparatus to control hot-start weld current for arc ignition are disclosed. An example welding-type power supply includes a power converter to output welding-type current, a temperature monitor to determine a temperature of an electrode using at least one of a temperature measurement or a thermal model, and a current controller to control a hot-start weld current output by the power converter based on the temperature of the electrode.

Methods and apparatus to control hot-start weld current for arc ignition are disclosed. An example welding-type power supply includes a power converter to output welding-type current, a temperature monitor to determine a temperature of an electrode using at least one of a temperature measurement or a thermal model, and a current controller to control a hot-start weld current output by the power converter based on the temperature of the electrode.

A thermally conductive base member and a method of assembly are provided. The thermally conductive base member includes first and second metal base members, and a top plate. The first metal base member has a first bottom plate, first and second female coupling portions, and first and second rib portions. The second metal base member has a second bottom plate, a first male coupling portion, and first and second rib portions. The first male coupling portion is disposed in and coupled to the first female coupling portion. The top plate is coupled to a top surface of the first female coupling portion, a top surface of the second female coupling portion, and the first and second rib portions of the first metal base member such that a first flow channel is defined between the first and second rib portions of the first metal base member and the top plate.

A thermally conductive base member and a method of assembly are provided. The thermally conductive base member includes first and second metal base members, and a top plate. The first metal base member has a first bottom plate, first and second female coupling portions, and first and second rib portions. The second metal base member has a second bottom plate, a first male coupling portion, and first and second rib portions. The first male coupling portion is disposed in and coupled to the first female coupling portion. The top plate is coupled to a top surface of the first female coupling portion, a top surface of the second female coupling portion, and the first and second rib portions of the first metal base member such that a first flow channel is defined between the first and second rib portions of the first metal base member and the top plate.

A system for joining at least two components by welding includes a magnetic base for receiving the components for welding and a flexible magnetic member configurable to correspond to a weld path defining a weld joining the components. The flexible magnetic member exerts a retention force on the components in response to a magnetic field produced by selective activation of the magnetic base. The system can include a magnetic locating element positioned adjacent a perimeter edge of the component to be welded, for generating a repulsive magnetic force between the flexible magnetic member and the magnetic locating element to locate the flexible magnetic member relative to the perimeter edge and provide clearance for a welding device to access a continuous weld path defined by the perimeter edge, such that the welding device can form a continuous weld along the weld path. A welding method using the system is provided.

A system for joining at least two components by welding includes a magnetic base for receiving the components for welding and a flexible magnetic member configurable to correspond to a weld path defining a weld joining the components. The flexible magnetic member exerts a retention force on the components in response to a magnetic field produced by selective activation of the magnetic base. The system can include a magnetic locating element positioned adjacent a perimeter edge of the component to be welded, for generating a repulsive magnetic force between the flexible magnetic member and the magnetic locating element to locate the flexible magnetic member relative to the perimeter edge and provide clearance for a welding device to access a continuous weld path defined by the perimeter edge, such that the welding device can form a continuous weld along the weld path. A welding method using the system is provided.

Second member 20 includes a material that is difficult to weld to first member 10. In first member 10, recess 11 is formed by press molding such that a lower surface of first member 10 opposite to second member 20 protrudes.

Third member 30 is arc-welded toward at least a bottom of recess 11 via penetrating part 21 of second member 20. Second member 20 is compressed by flange 31 and first member 10 by solidification contraction of third member 30, and second member 20 is therefore fixed between flange 31 of third member 30 and first member 10.

Second member 20 includes a material that is difficult to weld to first member 10. In first member 10, recess 11 is formed by press molding such that a lower surface of first member 10 opposite to second member 20 protrudes.

Third member 30 is arc-welded toward at least a bottom of recess 11 via penetrating part 21 of second member 20. Second member 20 is compressed by flange 31 and first member 10 by solidification contraction of third member 30, and second member 20 is therefore fixed between flange 31 of third member 30 and first member 10.

An electrodeless side-mounted LED string light, a method and an apparatus for manufacturing the same are provided by the disclosure. The electrodeless side-mounted LED string light includes: a first wire and a second wire, a plurality of LED units and a plurality of encapsulants. Each LED unit includes a first surface-mounted LED and a second surface-mounted LED. Luminous surfaces of the first and second surface-mounted LEDs are opposite to each other. The luminous surfaces of the first and second surface-mounted LEDs are perpendicular to an axial direction of the first and second wires. The plurality of encapsulants respectively encapsulants the first and second surface-mounted LEDs therein. With the electrodeless side-mounted LED string light of the disclosure, the utilization rate of the lighting wire of the string light is improved, the utilization rates of raw materials and apparatus are improved, the product quality and manufacturing efficiency are improved.

An electrodeless side-mounted LED string light, a method and an apparatus for manufacturing the same are provided by the disclosure. The electrodeless side-mounted LED string light includes: a first wire and a second wire, a plurality of LED units and a plurality of encapsulants. Each LED unit includes a first surface-mounted LED and a second surface-mounted LED. Luminous surfaces of the first and second surface-mounted LEDs are opposite to each other. The luminous surfaces of the first and second surface-mounted LEDs are perpendicular to an axial direction of the first and second wires. The plurality of encapsulants respectively encapsulants the first and second surface-mounted LEDs therein. With the electrodeless side-mounted LED string light of the disclosure, the utilization rate of the lighting wire of the string light is improved, the utilization rates of raw materials and apparatus are improved, the product quality and manufacturing efficiency are improved.