Abstract: A welding gun and a welding method with which it is possible to reduce, the wait time for loading a component and to decrease tact time. The welding gun is a welding gun for resistance-welding components to a workpiece successively, and comprises a first holding portion and a second holding portion for holding a component. The first holding portion and the second holding portion are each switchable to an abutment-enabling position for causing a component to abut against a workpiece, or to a loading-enabling position for loading the component. The first holding portion and the second holding portion are switchable such that when the first holding portion is in the abutment-enabling position, the second holding portion is in the loading-enabling position, and when the second holding portion is in the abutment-enabling position, the first holding portion is in the loading-enabling position.

Abstract: The invention relates to methods for laser welding a first and a second workpiece portion with a laser beam that is guided using a laser machining head along a joining gap formed between the workpiece portions, in which method the laser beam is focused and a filler is lined up with the joining gap. At least one gap width of the joining gap of the workpiece portions to be welded is detected and evaluated along the course of the joining gap and compared with at least a first and a second gap measurement. If a detected gap width is within the first gap measurement, the feeding of the filler to the joining gap is stopped and a beam profile of the laser beam is set with a point or annular focus, and if a detected gap width is within the second gap measurement, a feeding of the filler is actuated.

Abstract: An additive manufacturing system may include a build platform configured to receive a particulate, a particulate dispenser configured to deposit the particulate onto said build platform, a consolidation device configured to consolidate at least a portion of the particulate to form a component, a first actuator assembly configured to rotate said build platform about a rotation axis at a first speed, and a second actuator assembly configured to rotate said shaft about the rotation axis at a second speed different from the first speed.

Abstract: An additive manufactured workpiece includes one or more cavities having an inner surface. A dielectric interface is formed in the cavity, and conforms to the inner surface. The additive manufactured workpiece further includes an in-situ electrode in the cavities. The dielectric interface is interposed between the in-situ electrode and the inner surface of the workpiece.

Abstract: A laser processing system for micromachining a workpiece includes a laser source to generate laser pulses for processing a feature in a workpiece, a galvanometer-driven (galvo) subsystem to impart a first relative movement of a laser beam spot position along a processing trajectory with respect to the surface of the workpiece, and an acousto-optic deflector (AOD) subsystem to effectively widen a laser beam spot along a direction perpendicular to the processing trajectory. The AOD subsystem may include a combination of AODs and electro-optic deflectors. The AOD subsystem may vary an intensity profile of laser pulses as a function of deflection position along a dither direction to selectively shape the feature in the dither direction. The shaping may be used to intersect features on the workpiece. The AOD subsystem may also provide rastering, galvo error position correction, power modulation, and/or through-the-lens viewing of and alignment to the workpiece.

Abstract: A machining head is provided for a laser machining system configured to machine a workpiece using a laser beam. The machining head includes a housing having an opening for emitting the laser beam from the machining head; at least one reflective reference at the housing; and a measuring device configured to direct an optical measurement beam towards the opening and the at least one reflective reference. The measuring device is further configured to determine a distance (d1) between the end portion and the workpiece on the basis of a first reflection (A) of the optical measurement beam from the at least one reflective reference and a second reflection (B) of the optical measurement beam from the workpiece.

Abstract: A sandwich maker includes a base, a first hot-pressing module, a connecting rod set, a second hot-pressing module, a driving motor, and a control module. The first hot-pressing module is assembled to the base. The connecting rod set is pivotally disposed on the base and pivots between a standby position and a heating position. The second hot-pressing module is assembled to the connecting rod set, and is moved between the standby position and the heating position driven by the connecting rod set. At the standby position, the second hot-pressing module is far away from the first hot-pressing module. At the heating position, the second hot-pressing module correspondingly covers the first hot-pressing module. The driving motor is connected to and drives the connecting rod set. The control module is electrically connected to and controls the first hot-pressing module, the second hot-pressing module, and the driving motor.

Abstract: An electric heater includes a substrate; and a plane heating element disposed on one surface of the substrate, in which the plane heating element includes a pattern portion including a start point and an end point; and an electrode portion connected to the start point and the end point of the pattern portion, and a thickness of the electrode portion is thicker than a thickness of the pattern portion.

Abstract: The invention relates to a temperature control system for additive manufacturing and method for same. The temperature control system comprises: a cladding device configured to fuse a material and form a cladding layer, the cladding device comprising a first energy source; a micro-forging device coupled to the cladding device for forging the cladding layer; a detecting device; a control module; and an adjusting module coupled to at least one of the first energy source and the micro-forging device.

Abstract: A welding process involves a fixture for holding a workpiece and a welder, or welding electrode. The fixture imposes ultrasonic vibration on the workpiece. The welder vibrates during vibration, and is operable at a first voltage for welding and a second voltage for peening. The peening may occur while the weldmetal is crystallizing. The welding process may be a process of welding two part as together, or of filling a groove or other feature, or of applying or restoring a surface, or of applying a hard facing or ceramic to a parent metal or object. The weldmetal may be the same, or substantially the same, as the parent metal, or it may be different. The different material may be a ceramic material.

Abstract: A gas shielded arc welding method includes welding a steel sheet with a tensile strength of 780 MPa or more using a shielding gas containing Ar in an amount of 92 vol. % to 99.5 vol. %. In the gas shielded arc welding method, a value calculated from the following expression (1) is 0.20 or more: {?v/(D/2)2}×10?{(100?CAr)×I/v}×0.1 . . . (1), where CAr represents an Ar content (vol. %) in the shielding gas, D represents an inner diameter (mm) of a nozzle from which the shielding gas is supplied, v represents a welding speed (cm/min), and I represents a welding current (A).

Abstract: In order to create a laser tool, in particular for the structuring of cylinder running surfaces, that offers the possibility of adjusting the focal position of the laser beam with high process reliability and with high repeatability, it is provided that the laser tool has a laser source for producing laser beams, a collimator for producing a parallel course of the laser beams from the laser source, which are passed through a lens that is located within a rotatable spindle, wherein an optical device for deflecting the laser beams onto a material surface is attached to an end of the spindle facing away from the laser source, wherein the collimator is movable parallel to the laser beam by means of a drive.

Abstract: A welding quality detection system and a welding quality detection method are provided. A detection device applies a force to at least one weld point of a first welded object or a second welded object that are welded together. A displacement detector detects a displacement signal that varies with the force or time between the first welded object and the second welded object based on the force. A detection module receives or records the displacement signal and determines whether a gap exists between the first welded object and the second welded object based on a slope of the displacement signal, so as to detect the welding quality of the weld point quickly and precisely.

Abstract: An assembly, comprising a heat-dissipating first resistor, control device for controlling the first resistor, as well as a grounded component, which lies on a potential without direct relation to a control voltage. The first resistor is arranged in spatial vicinity of the grounded component and comprising a first and a second connection. The control device comprises a first switching device and a second switching device. The first switching device, first resistor and second switching device form a series connection. A compensation device is configured such that in the On-state of the first resistor a voltage is applied between the first and second connection, wherein the resistor in the off-state is held on an in-between potential that lies between the first and the second potential and/or the control device is configured to trigger the first resistor in a pulse width modulated fashion, such that the first as well as the second switching device are switched synchronously.

Abstract: A sheet includes a pseudo-sheet structure including a plurality of linear-bodies with a volume resistivity R of from 1.0×10?7 ?cm to 1.0×10?1 extending in one direction, aligned parallel to one another, and spaced apart from one another, satisfies the relation: L/D?3, wherein D represents the diameter of the linear-bodies, and L represents the spacing between adjacent ones of the linear-bodies, and also satisfies the relation: (D2/R)×(1/L)?0.003, wherein D represents the diameter of the linear-bodies, L represents the spacing between adjacent ones of the linear-bodies, R represents the volume resistivity of the linear-bodies, and D and L are in units of cm. A heating element and a heating device each include the sheet.

Abstract: A cooking system includes a housing defining a hollow chamber configured to receive food, a controller configured to operate the cooking system in a plurality of modes including a conductive cooking mode and a convective cooking mode, a first temperature sensor operable by the controller to detect temperature in the hollow chamber during the conductive cooking mode, and a second temperature sensor operable by the controller to detect temperature in the hollow chamber during the convective cooking mode. The controller is configured to receive an initial user input that initiates at least one of the conductive cooking mode and the convective cooking mode and switch between operation of the first temperature sensor and the second temperature sensor following the initial user input and without further user input.

Abstract: The invention relates generally to welding and, more specifically, to welding wires for arc welding, such as Gas Metal Arc Welding (GMAW) or Flux Core Arc Welding (FACW). In one embodiment, a tubular welding wire includes a sheath and a core, and the core comprises a rare earth silicide component (cerium, lanthanum, or a combination thereof). The core may also comprise an organic stabilizer component, a carbon component, and an agglomerate. The organic stabilizer component may comprise an organic molecule or organic polymer bound to one or more Group I or Group II metals. The carbon component may comprise graphite, graphene, carbon black, lamp black, carbon nanotubes, diamond, or a combination thereof. The agglomerate may comprise oxides of one or more Group I or Group II metals, titanium, and manganese.

Abstract: A plasma cutting method providing a plasma torch having an electrode disposed within a first nozzle with a first exit section facing an end of the electrode. The first gas source supplies a gas to the first nozzle. A second nozzle is arranged concentrically around the first nozzle and has a second exit section substantially facing the first exit section. A second gas source supplies the gas between the first nozzle and the second nozzle. The electrode is supplied with a current, and the first and second nozzles are supplied with the gas to form a plasma with the gas introduced into the first nozzle. The surrounding pressure around the plasma jet in the second nozzle at the exit of the first nozzle is controlled to be at least superior to the atmospheric pressure and inferior to the pressure in the first exit section.

Abstract: There is provided a method of manufacturing a heater assembly for an aerosol generating system, including providing a flexible wick; applying tension to the flexible wick; assembling a heating element around the flexible wick; and releasing the tension from the flexible wick.

Abstract: A laser tool, in particular for the structuring of cylinder running surfaces, that offers the possibility of guiding the laser beam of the laser tool with high process reliability, it is provided that the laser tool has a laser source for producing laser beams that are passed through a lens tube located in a hollow shaft, wherein a lens through which the laser beams are passed is attached to the lens tube, wherein the hollow shaft is designed to be rotatable as a hollow-shaft motor, wherein a spindle, to which is attached an optical device for deflecting the laser beam onto a workpiece surface, is attached to the hollow shaft, wherein the hollow shaft is rotatable independently of the lens.