Abstract: An induction hob device includes at least one cooktop, at least one first coil, at least one second coil, and a control unit. The first coil and the second coil are displaced relative to each other at least in a direction perpendicular to the cooktop. In order to improve an efficiency, the control unit is configured to at least temporarily operate the first coil and the second coil simultaneously.

Abstract: A laser processing device for processing shielded conductors includes a processing chamber configured to process an end portion of a shielded conductor disposed therein using laser radiation. The processing chamber has a housing defining an opening. In a processing position of the laser processing device, the end portion of the shielded conductor is inserted along an insertion axis into the opening and extends into the processing chamber. A gripping device is configured to fix the shielded conductor in the opening in the processing position of the laser processing device. In the processing position of the laser processing device, the gripping device is positioned at the housing without contact therebetween. The gripping device includes a first projection portion which extends at least partially into the opening along the insertion axis in the processing position of the laser processing device.

Abstract: A mechanism for detecting the inside of a workpiece includes a wavelength delaying unit for outputting each pulse of a pulsed laser beam emitted from a laser oscillator with time differences imparted to respective wavelengths, and a ring generating unit for generating a ring-shaped pulsed laser beam from the pulsed laser beam with the time differences imparted to the respective wavelengths and diffracting the ring-shaped pulsed laser beam into ring-shaped laser beams ranging from small to large at the respective wavelengths. When the ring-shaped laser beams with the time differences imparted to the respective wavelengths are applied to the workpiece, they produce an interference wave of ultrasonic waves in the workpiece, and vibrations are produced at a position where the interference wave of the ultrasonic waves is converged. A laser beam is applied to an upper surface of the workpiece at a position aligned with the center of the vibrations.

Abstract: A laser welding apparatus (1) includes a laser welding head (5) configured to irradiate a workpiece (10) with laser light, a welding filler feeding mechanism (6) configured to supply a welding material to a position on which laser welding is performed, and a hollow structural moving mechanism (100) configured to move a welding unit (50) including the laser welding head and the welding filler feeding mechanism. The hollow structural moving mechanism has an insertion portion (3a) through which an optical cable (41) of the laser welding head and a wire material (62) of the welding filler feeding mechanism are inserted.

Abstract: A rotating magnet heater for metal products, such as aluminum strip, can include permanent magnet rotors arranged above and below a moving metal strip to induce moving or time varying magnetic fields through the metal strip. The changing magnetic fields can create currents (e.g., eddy currents) within the metal strip, thus heating the metal strip. A magnetic rotor set can include a pair of matched magnetic rotors on opposite sides of a metal strip that rotate at the same speed. Each magnetic rotor of a set can be positioned equidistance from the metal strip to avoid pulling the metal strip away from the passline. A downstream magnetic rotor set can be used in close proximity to an upstream magnetic rotor set to offset tension induced by the upstream magnetic rotor set.

Abstract: An annular hollow offset-focus laser cladding device, including a housing, a conical reflector arranged in the housing, an annular off-axis parabolic focusing mirror opposite to and arranged coaxially with the conical reflector, a nozzle installed below the conical reflector and a powder-spraying tube connected to a lower end of the nozzle. A top of the housing is provided with a light entrance; the conical reflector faces the light entrance; The powder-spraying tube is coaxial with the annular hollow offset-focusing light reflected by the annular off-axis parabolic focusing mirror; a collimating protective gas jacket is arranged on a periphery of the powder-spraying tube, and the collimating protective gas jacket is located between the annular hollow offset-focused light and the powder-spraying tube; the annular off-axis parabolic focusing mirror is configured to create a horizontally offset of parent parabola focus.

Abstract: A heater (1a) includes a support (10) made of an organic polymer and having a sheet shape, a heating element (20), and at least one pair of power supply electrodes (30) in contact with the heating element (20). The heating element (20) is a transparent conductive film made of a polycrystalline material containing indium oxide as a main component. In the heater (1a), the heating element (20) has a specific resistance of 1.4×10?4 ?·cm to 3×10?4 ?·cm. The heating element (20) has a thickness of more than 20 nm and not more than 100 nm.

Abstract: A laser engraving machine with a three-point suspension system and an inverted X-Y axis support system wherein the X-axis beam is to and mounted below the Y-axis beams and the Y-axis beams are mounted inwardly of the outer ends of the X-axis beam and are structurally integrated with the machine housing. In addition, a counterweight in the form of a second, independently activatable laser is added to the drive belt to reduce or eliminate vibration during rapid reciprocal movement of the tool during an engraving process.

Abstract: A method of welding a first metal plate and a second metal plate that is thicker than the first plate, by a laser beam. The first plate and the second plate are disposed to overlap one another in a thickness direction. In a first laser irradiation step, the laser beam is emitted at the first plate, to form an initial nugget including a front-side nugget portion in the first plate, a back-side nugget portion in the second plate and having a diameter smaller than a diameter of the front-side nugget portion, and an annular flat surface portion existing between the front-side nugget portion and the back-side nugget portion. In a subsequent laser irradiation step, the laser beam is emitted again at the initial nugget after the initial nugget is solidified, thereby increasing the diameter of the back-side nugget portion.

Abstract: An arrangement, comprising a heat-emitting resistor, a control device for switching the resistor and a component that is at a potential without direct reference to a drive voltage. The resistor is arranged in spatial proximity to the component, and has a first and a second partial resistor connected in series. The control device includes at least one switching device for switching the heat-emitting resistor. The first partial resistor, the switching device and the second partial resistor are connected in series in the stated order and form a series connection. The first partial resistor and the component form a first partial capacitance and the second resistor and the component form a second partial capacitance. The partial capacitances are formed in such a way that upon the switching of the resistor a current flowing in the first partial capacitance is at least partly taken up by the second partial capacitance, or vice versa.

Abstract: The invention relates to a device (2) for working a surface (4) of a workpiece (6) by means of a laser beam (8), comprising a laser system (12) for providing the laser beam (8) and a plasma nozzle (14), which is designed to produce an atmospheric plasma jet (16), wherein the plasma nozzle (14) has a nozzle opening (24, 24?), from which a plasma jet (8) produced in the plasma nozzle (24, 24?) exits during operation, wherein the laser system (12) and the plasma nozzle (14) are arranged in relation to each other and designed in such a way that, during operation, the laser beam (8) exits from the nozzle opening (24, 24?) of the plasma nozzle (14) together with the plasma jet (16). The invention further relates to an assembly (100) having such a device and to a method for operating said device (2).

Abstract: A laser welding system for welding a component and reducing defects in the weld by ensuring uniform, laminar gas flow over a process area of the system. The laser welding system comprises a laser for welding the component, a platform for supporting the component, an enclosure surrounding the platform, a first actuatable barrier, a second actuatable barrier, an actuator, and a controller. The enclosure includes a plurality of walls, one of the walls having an inlet and another wall having an outlet. The inlet and outlet each having an opening having a cross-sectional area for letting gas flow through. The first and second barriers are configured to modify the cross-sectional areas of the openings when actuated.

Abstract: In a method of manufacturing an electrothermal heater mat, a heater element is deposited on a first one of the dielectric layers of the heater mat by using a laser blown powder process.

Abstract: A laser hole drilling system. The system includes a laser source that generates a laser beam along an optical axis, a cylindrical lens along the optical axis downstream of the laser source, and a spherical lens downstream of the cylindrical lens, the spherical lens offset from the optical axis to provide an anamorphic optical train to generate an asymmetric teardrop shaped energy distribution at a focal plane.

Abstract: Provided is an apparatus and method for a digital power supply that can provide independent power control for two or more electrical loads. Some disclosed embodiments provide continuous, variable power and other disclosed embodiments provide discrete power levels. Disclosed embodiments may reduce the magnitude of harmonic currents and/or flicker introduced into a power system. Embodiments include a microprocessor that delivers power to electric loads using phase-controlled AC current. In some embodiments, the microprocessor may calculate a power array corresponding to a requested power for each electric load. Logic is provided for populating the power array in a pattern that reduces the magnitude of harmonic currents and flicker. Portions of the disclosure include a band controller for delivering power to achieve and maintain a desired target temperature, and a wireless controller for controlling temperature from a remote device.

Abstract: A cooking unit includes a cooktop, a hood assembly, a duct assembly, and a fan. The cooktop defines a slot at least partially extending along a peripheral edge of the cooktop. The hood assembly includes a hood support extending upward from the cooktop and a hood coupled to the hood support. The hood support defines a conduit. The hood defines an intake and a hood chamber connecting the intake to the conduit of the hood support. The duct assembly includes ducting extending beneath the cooktop. The ducting connects the conduit to the slot. The fan is positioned to drive air into the intake, through the hood chamber, through the conduit, through the ducting, and out of the slot. At least a portion of the air exiting the slot returns to the intake such that an air curtain is generated between the slot and the intake.

Abstract: A manufacturing method and a manufacturing apparatus for a separator layer-coated electrode are provided capable of shortening the time required to cut out a separator layer-coated electrode with a laser beam. In a cutting process, a laser beam is irradiated to a laser irradiation target portion of a strip-shaped separator layer-coated electrode from a front-side separator layer side to cut a strip-shaped separator layer-coated electrode. Prior to the cutting process, a preheating process is conducted to preheat the front-side separator layer in the laser irradiation target portion.

Abstract: There is provided a method of determining whether or not a result of a processing process of a laser processing apparatus is acceptable including a laser processing step of applying a laser beam to predetermined processing regions of a workpiece held on a chuck table, thereby performing a piercing process on the workpiece, an image capturing step of capturing images of all the processing regions while moving the image capturing unit and the workpiece relatively to each other, a detecting step of detecting regions where light is not transmitted through the workpiece among the processing regions in the image captured in the image capturing step, and a determining step of determining that the laser processing apparatus needs to be readjusted if the regions where light is not transmitted through the workpiece is equal to or more than the predetermined quantity.

Abstract: A processing device to form a pattern on a surface of an object to be processed using diffraction of a laser beam emitted from a laser source, the device including: a main body providing a space to process the object using the laser beam emitted from the laser source; a laser transmission unit formed at a first portion of the main body, and configured to diffract the laser beam so that a diffracted laser beam is emitted toward the object; an actuator formed at a second portion of the main body, and connected to the laser transmission unit so as to change an emission pattern of the diffracted laser beam while rotating the laser transmission unit vertically/horizontally or in a set radius; and a controller provided at a third portion of the main body, and connected to the actuator to control an operation of the actuator.

Abstract: A cooking apparatus includes a base, a cover with a hot air system, an inner pot, an upper temperature sensor located in the lid, and a lower temperature sensor located in the base. A processor is configured to operate in one of multiple cooking modes, and for each of the cooking modes the processor is configured to measure an upper and a lower temperature using the upper and the lower temperature sensor, respectively; compare the upper and the lower temperature to an upper and a lower temperature sensor setting, respectively; when the upper temperature differs from the upper temperature sensor setting, adjust power to the hot air heating element such that the upper temperature approaches the upper temperature sensor setting; and when the lower temperature differs from the lower temperature sensor setting, adjust power to the heating plate such that the lower temperature approaches the lower temperature sensor setting.