Abstract: A method for texturing of selected surfaces on a spinal implant. The implant is pretreated with an EDM process by passing the implant by an electrode along an axis, at a predetermined speed, voltage and current. The implant is further conditioned by Al2O3 grit blasting followed by an acidic solution bath and process water rinse, which yields a surface porosity and topography conducive to osseointegration on the surface of the spinal implant.

Abstract: A method for electrical discharge machining (EDM) a workpiece by means of a train of machining pulses. During the machining time the machining pulses are applied to the working gap between workpiece and electrode. An open voltage is first applied, and it is increased to a second open voltage level if a discharge does not occur within a waiting time do, and further increased to a third open voltage level if a discharge does not occur within a second waiting time d1. The discharge electrical parameters can be adjusted according to the duration of d0 and d1.

Abstract: An electronic device housing, a manufacturing method thereof, and an electronic device are provided. The housing includes a bottom plate, and a middle frame connected to the bottom plate. The middle frame is made of glass, and the bottom plate is made of sapphire; or the bottom plate is made of glass, and the middle frame is made of sapphire. An interface-free continuous connection is provided between the bottom plate and the middle frame.

Abstract: A modular planar electrical wiring system for providing a planar electrical wiring according to a desired configuration includes a planar electrical distribution cable, at least one planar electrical appliance embedded in a planar sheet and connectable to the planar electrical distribution cable; and at least one planar connector for connecting a corresponding planar electrical appliance to the electrical distribution cable at any given location therealong according to the desired configuration, to thereby provide a modular planar electrical wiring system having a low height profile. There is also provided a modular power distribution system provided with a power source, an enclosure for a planar power distribution cable, a crimp connector including a control system, and power sources for a planar modular power distribution system.

Abstract: A machining device is provided with multiple translational and/or rotary machine axes for laser processing, grinding or electrical discharge machining of a workpiece into a tool. The machining device includes a machining unit comprising either a laser system with an optical system for generating, directing and/or moving a laser beam along an optical axis, a grinding tool rotatable around a tool axis, or an electrode tool for generating electrical discharge. The machining device also includes a workpiece support on which the workpiece is attached. The workpiece support is arranged movable about a second rotary machine axis, which is movable relative to a first rotary machine axis, perpendicular to the second rotary machine axis. A measuring system is positioned in a center of the first rotary machine axis and orientated towards a machine zero point defined by an intersection of the first rotary machine axis and the second rotary machine axis.

Abstract: A method of tokenization and use of assets, comprising: a) registering at least one asset on a distributed ledger; b) assigning the at least one asset a fungible or non-fungible token with a public key; c) reading information about the at least one asset using a reading device; d) verifying ownership of the at least one asset using a private key which matches the public key; and, e) performing a transaction with the at least one asset.

Abstract: Provided are a variable pulse width flat-top laser device and an operation method therefor. A variable pulse width flat-top laser device includes a light source unit including first and second laser light sources driven at different times to respectively emit pulse-type first and second laser beams, a beam shaping unit configured to shape the first and second laser beams emitted from the light source unit into flat-top laser beams, a combination/split unit located between the light source unit and the beam shaping unit, and including a first beam combination/split unit configured to combine optical paths of the first and second laser beams and split a combined optical path into at least two optical paths so that the split at least two optical paths are directed to different regions of an incident surface of the beam shaping unit, and an imaging optical system configured to time-sequentially overlay the flat-top laser beams shaped by the beam shaping unit on a target object to form an image.

Abstract: A nozzle includes a nozzle member includes a first passage, a second passage surrounding the first passage and configured to eject powder and fluid from an end portion, a diffusion room apart from the end portion and configured to supply the powder and the fluid to the second passage, and a supply path to supply the powder and the fluid to the diffusion room. A first inner surface of the nozzle member includes a first curved surface in a conical shape having a diameter decreasing toward the end portion. A second inner surface of the nozzle member includes a second curved surface in a conical shape having a diameter decreasing toward the end portion. The second passage is formed between the first curved surface and the second curved surface. The diffusion room is formed between the first inner surface and the second inner surface.

Abstract: In one form, the present disclosure is directed toward a method of controlling temperature of a heater including a resistive heating element. The method includes applying power to the resistive heating element at a variable ramp rate to decrease temperature of the heater to a desired temperature setpoint, where the variable ramp rate is set to a desired ramp rate. The method further includes monitoring the temperature of the heater to detect a runaway condition and adjusting the variable ramp rate from the desired ramp rate to a permitted ramp rate in response to the runaway condition being detected.

Abstract: An application tool, in particular a chisel or a drill bit, is disclosed. The application tool has a tool head. The application tool further has a shank region in which a main body is arranged, wherein the main body has a first hardness. The application tool further has a coating that has a second hardness greater than the first hardness. The coating includes a hard metal, which comprises a hard material and a metal matrix. Advantageously, the durability of the application tool can be increased as a result.

Abstract: A method for additive manufacturing deposits material on a part forming a substrate, wherein the part forming a substrate is made of a metal alloy. The method includes a step of low-energy deposition corresponding to a surface energy of less than 400 J/mm2, on a predefined surface to be deposited, in order to form a base layer. The method further includes a step of high-energy deposition, corresponding to a surface energy greater than 500 J/mm2, by depositing a wire on the base layer already formed.

Abstract: In a method for embodying a hotplate for a hob, at least one metallic layer and a further layer under the metallic layer are formed on an underside of the hotplate. After applying the at least one metallic layer and the further layer, at least one region of the metallic layer is changed by a laser light of a laser beam so that the further layer is recognized when viewing the hob on a topside.

Abstract: A system for shaping a beam and adjusting a beam energy density includes a laser source, a collimator mirror, a spatial light modulator, an X-direction mirror, a focusing assembly, and a Y-direction mirror. The spatial light modulator includes a binary grating and a mask which are disposed in sequence. A laser beam emitted by the laser source sequentially passes through the collimator mirror, the spatial light modulator, the X-direction mirror, the focusing assembly, and the Y-direction mirror, the laser beam is shaped by changing a diffraction period of the binary grating, an energy density distribution of the laser beam is changed by adjusting a grating density of the mask, and the X-direction mirror and the Y-direction mirror are used for a dynamic scanning movement of the laser beam.

Abstract: A plasma stove includes a carrier, an electric fire assembly, an electric control device, and an electrical connecting assembly. The carrier includes a housing and a support platform on the housing. The electric fire assembly includes a plasma needle, an electrode tip connected to the plasma needle, and an ignition head. The plasma needle and the ignition head are arranged on the housing and in the support platform. The electric control device in the housing includes a circuit board and a step-up transformer connected to the circuit board. The plasma needle and the ignition head are connected to the circuit board through the electrical connecting assembly. The electrical connecting assembly includes a conductive connector connected to the plasma needle and a flexible conductor. The flexible conductor includes a first connecting end detachably connected to the connector and a second connecting end detachably connected to the circuit board.

Abstract: The invention relates to a coated electrode comprising a central metal core being surrounded at least in part by an outer coating containing rutile and at least one lithium-based compound and being free of sodium feldspar and potassium feldspar. According to the invention, the electrode comprises at least one inner coating arranged between the outer coating and the central metal core, said inner coating containing at least one sodium-based compound and/or at least one potassium based compound. Associated process for welding stainless steel.

Abstract: A method of manufacturing a photothermal conversion element includes preparing a solid material and forming a processed region processed by irradiation of the solid material with a laser beam. The forming includes grain refining the solid material to blacken the processed region.

Abstract: Methods and apparatus to synergically control a welding-type output during a welding-type operation are disclosed. An example welding-type power supply includes a power conversion circuit configured to convert input power to welding-type power and to output the welding-type power to a welding-type torch; a communication circuit configured to receive a control signal from a remote control device during a welding-type operation; and a control circuit configured to synergically control at least two of a voltage of the welding-type power output by the power conversion circuitry, a current of the welding-type power, or a wire feed speed.

Abstract: A welding jig device is used for forming a part by welding a plurality of members together, and includes a jig on one side having a joint face on one side, which is adapted to contact one of faces exposed on the outer surface sides of the plurality of members overlaid one on top of the other, and an opening on one side corresponding to a portion of desired welded portions of a part; and a jig on another side having a joint face on the other side, which is adapted to contact another face of the faces exposed on the outer surface sides of the plurality of members W, and an opening on the other side corresponding to another portion of the desired welded portions of the part and not corresponding to the opening on the one side.

Abstract: A device is used for forming a part by welding a plurality of members together, and includes a jig on one side having a joint face on one side, which is adapted to contact one of faces exposed on the outer surface sides of the plurality of members overlaid one on top of the other, and an opening on one side corresponding to a portion of desired welded portions of the part; a jig on another side having a joint face on the other side, which is adapted to contact another face of the faces exposed on the outer surface sides of the plurality of members, and an opening on the other side corresponding to another portion of the desired welded portions of the part and not corresponding to the opening on one side; a laser welding machine on one side that is configured to emit a laser beam toward the opening on one side; and a laser welding machine on the other side that is configured to emit a laser beam toward the opening on the other side.

Abstract: An electrical discharge machining (EDM) assembly includes a mounting device that is configured to support an EDM electrode relative to a work piece. The electrode includes an axial opening that extends between opposed ends of the electrode, a first portion that includes one end and a second portion that includes the opposed end. The flexibility of the first portion is greater than that of the second portion. For example, the first portion may be a helical spring and the second portion may be a rigid tube. The mounting device includes a back plate, an upright portion that protrudes from the back plate and a curved sleeve disposed in a through hole that extends through the back plate and the upright portion. The electrode is movably disposed in the sleeve.