Abstract: An additive manufacturing machine includes a laser light source, a beam entry window, a recoater, a plurality of light sources attached to the recoater, a photosensor, and a controller. The laser light source emits laser light to selectively melt one or more portions of a working layer of a powder bed during additive manufacturing of a part. The beam entry window is positioned between the powder bed and the laser light source. The recoater moves across the powder bed to spread the working layer. The photo sensor senses intensity of light emitted by each of the plurality of light sources through the beam entry window. The controller correlates sensed intensity of the light emitted by each of the plurality of light sources through the beam entry window to corresponding positions on the beam entry window based on locations of each of the plurality of light sources.

Abstract: A system for mixing and dispensing a beverage is provided including a disposable pod containing a solute therein, inflow puncturing cap defining a plurality of spikes extending therefrom, an outflow puncturing cap defining a plurality of puncturing spikes extending therefrom and a translation mechanism for receiving the pod, translating the inflow puncturing cap towards the pod to puncture the pod upper surface and seat the pod proximate the outflow cap spikes. Heated, pressurized solvent fluid is injected into the pod, wherein the solvent and solute mix, causing the pod lower surface to expand against, and be punctured by the outflow puncturing cap spikes. The pod material, and pod thickness may be selected to allow puncture of the pod lower surface after a preferred brewing period has occurred.

Abstract: A fixture assembly for supporting a plurality of blanks during a welding operation. The fixture assembly includes a frame. A plurality of electromagnets are positioned on the frame for supporting the blanks and for drawing the blanks toward the electromagnets to secure the blanks into a desired position. A plurality of intensifiers are moveably connected to the frame for selectively overlying the top face of one of the electromagnets for clamping the blank against the electromagnet to intensify a magnetic force provided by the electromagnet. A plurality of electromagnet adjusters are each coupled with the frame and with at least one of the electromagnets for moving the electromagnets relative to the frame. A plurality of adjusting pins are each connected to the frame and moveable relative to the frame for adjusting a position of the blanks.

Abstract: A method for producing a component by brazing and a related component are disclosed. The component may include a first part, a second part and a third part, wherein the first part includes a first junction part, the second part includes a second junction part and a cross junction part, and the third part includes a third junction part, and wherein the third junction part has a part and a remaining part. In an embodiment the method includes coupling the first part and the second part to each other by performing a preceding weld in a state of overlapping a part of the first junction part and the second junction part and, after performing the preceding weld, coupling the first part, the second part, and the third part to each other by performing a following weld.

Abstract: Laser ablation processing method for debris-free and efficient removal of materials comprises the step of using a refrigeration device to condense the water vapor and form a thin frost layer on the materials at temperatures below the freezing point. The residual debris produced during the ablation process deposits on the frost layer that covers the material, which is easily removed when the frost layer melts. At the same time, the frost layer in the laser irradiation area melts to a liquid layer, which can effectively reduce the deposition of debris on the inner wall of the groove and thus improve the efficiency and quality of laser ablation. The method is applicable to debris-free laser processing on an arbitrary curved surface.

Abstract: A joint body includes first and second metal members and a joint portion including a welded portion where the first and second metal members are joined together, the welded portion having a line shape. The joint portion includes first and second longitudinal portions and a plurality of connecting portions. The first longitudinal portion has first intersecting portions arranged in a first direction and extends in the first direction. The second longitudinal portion has second intersecting portions arranged in the first direction and extends in the first direction. The welded portion intersects itself at the first and second intersecting portions. The connecting portions are arranged in the first direction. The connecting portions extend in a first direction and connect the first and second longitudinal portions.

Abstract: The present disclosure is directed to a tubular welding electrode with a sheath encapsulating a flux core, where the sheath comprises a number of added pores. The added pores may provide escape paths for the outgassing of moisture and hydrocarbons from the flux core when the tubular welding electrode is baked. In addition, the added pores may be used to hold a liquid, such as a lubricant. The added pores may be introduced using a process such as laser drilling or chemical etching, and may be added to a strip of sheath material prior to forming the strip into a tubular welding electrode.

Abstract: A method of manufacturing a cutting member include cutting a first metal material to form a first portion of the cutting member; cutting second metal material to form a second portion of the cutting member, wherein a first edge of the second portion has at least two line segments, a curve formed by the at least two line segments being mathematically continuously differentiable; welding the first portion and the second portion together; raising the cutting member blank to a first temperature at a first rate and holding raising the cutting member blank from the first temperature to a second temperature at a second rate lower than the first rate and holding, and raising the cutting member blank from the second temperature to a third temperature at a third rate not higher than the second rate and holding.

Abstract: A laser processing device and a laser processing method are provided. The laser processing device includes: at least two lasers each configured to generate a laser beam; focusing members corresponding to the at least two lasers respectively and configured to adjust focus positions of at least two laser beams generated by the at least two lasers; and a beam combination member configured to receive the at least two laser beams whose focus positions have been adjusted, and output the at least two laser beams coaxially.

Abstract: A stage for cutting a substrate includes: a body member; a plurality of first discharging members, each including a first suction portion in the body member and a first partition wall portion connected to the first suction portion and protruding from a top surface of the body member, each of the first discharging members defining a first space connected to an outside; a plurality of second discharging members, each including a second suction portion in the body member and a second partition wall portion connected to the second suction portion and protruding from the top surface of the body member, each of the second discharging members defining a second space connected to the outside; a plurality of connecting pipes each connected to the first partition wall portion and the second partition wall portion; and a plurality of supply pipes connected to the connecting pipes.

Abstract: The disclosure relates to methods and systems for joining at least two workpieces, including forming a weld joint by moving a machining beam, e.g., a laser beam, and the at least two workpieces relative to one another along a feed direction, wherein the movement of the machining beam and the two workpieces relative to one another is superimposed with a periodic movement in a movement path, e.g., a two-dimensional movement path, which extends in a transverse direction perpendicularly to the feed direction and, e.g., additionally in the feed direction. The movement path has, between two reversal points in the transverse direction, at least one stop point at which a speed component of the periodic movement in the transverse direction is zero. The invention also relates to computer program products and systems for carrying out the methods.

Abstract: A process for the continuous production of thin-walled, radially closed hollow profiles which are composed of nonferrous metals and have a small cross section comprises supply of a flat strip of the nonferrous metal to a forming apparatus (212) at a first supply speed, where the thickness of the strip corresponds to the wall thickness of the hollow profile. The forming apparatus (212) is configured for continuous forming of the flat strip supplied into a shape corresponding to the hollow profile. After forming, two opposite edges of the flat strip rest flush against one another in a contact region. A welding apparatus (216) continuously welds the edges which rest flush against one another by means of a laser which emits light having a wavelength of less than 600 nm. The laser heats a point in a welding region which has a diameter which is less than 20% of the cross-sectional dimension of the hollow profile.

Abstract: Devices for laser welding using welding wire have a welding head, a wire guide for the welding wire, and a wire feed drive. The welding wire can be moved by the wire feed drive during a welding process with a feed movement in a feed direction, guided by the wire guide. A positioning device has a positioning drive, by which the welding wire is moved in an oscillating manner in the longitudinal direction of the welding wire, when a wire end of the welding wire is arranged in a welding readiness position. Methods for laser welding using a welding wire as added material are carried out using the devices. A control program controls the devices. The devices for laser welding can be provided as a part of a welding robot.

Abstract: A method for identifying joining positions of workpieces includes capturing images of a joint by a camera, determining measurement data for the joining positions associated with a course of the joint from the images of the joint, determining a mathematical model of the joint course from a part of the measurement data, providing a curve based on the mathematical model for positioning a welding laser during a laser welding process along the curve.

Abstract: A method for cutting workpieces of different thicknesses includes providing at least one unprocessed laser beam, selectively forming a processing laser beam from the at least one unprocessed laser beam in accordance with a thickness of the workpiece, and cutting the workpiece with the processing laser beam. Forming the processing laser beam includes selectively coupling one or more unprocessed laser beams into one or more of a plurality of parallel, non-concentric fibers of a compound fiber, the plurality of fibers of the compound fiber having different cross-sectional shapes. A laser beam characteristic of the processing laser beam exiting the compound fiber differs depending upon which fibers of the compound fiber receive the at least one unprocessed laser beam, the laser beam characteristic of the processing laser beam differing depending on the thickness.

Abstract: A plurality of values measured are relatively compared to determine an optical axis deviation direction in which an optical axis of a measurement beam S deviates from a laser beam L. In performing laser welding in the optical axis deviation direction, an irradiation position of the measurement beam S is changed so that the irradiation position of the measurement beam S is moved to a rear side of the center of the optical axis of the laser beam L in the welding direction.

Abstract: An arc welding method is described where pulse arc welding is performed with a welding wire being fed in a forward direction during a first period and short-circuit transfer arc welding is performed with the welding wire being fed in the forward direction and a reverse direction during a second period. The arc welding method alternately switches between the first period and the second period, where the switching of the first period to the second period is performed during a peak period of the pulse arc welding.

Abstract: Heating apparatus and methods for thermally processing a part including improved control of temperature. A thermal management system is coupled to a back surface of a table thermally coupled to an inductive heating circuit. The thermal management system includes a chamber defining an interior space, at least one cooling fin disposed within the chamber, an inlet extending through the chamber and fluidly communicating with the interior space, and an outlet extending through the chamber and fluidly communicating with the interior space. In some applications, an air source fluidly communicates with the inlet and is selectively operable to generate an air flow through the chamber, so that the thermal management system may be selectively operated in an insulator mode and a cooling mode.

Abstract: A method for identifying a cooking level of a food load in an electromagnetic cooking device is disclosed. The method includes controlling a frequency and a phase of a first RF signal and a second RF signal and amplifying the first RF signal and the second RF signal thereby generating a first RF feed and a second RF feed. The method further includes emitting the first RF feed and the second RF feed into an enclosed cavity to heat a food load and measuring at least one reflection signal. The method further includes calculating a Q-factor for the enclosed cavity based on the reflection signal, monitoring the Q-factor, and identifying a change in the Q-factor exceeding a predetermined change threshold. In response to identifying the change exceeding the predetermined change threshold, a cooking level for the food load is identified.

Abstract: An optical module for a machine for machining workpieces and/or for producing molded bodies by way of location-selective solidification of material powder into contiguous regions by a laser beam includes a housing for releasably fastening the optical module to the machine and a collimation optics changer releasably arranged in the housing, having at least two collimation optics which can be moved into a beam path of the laser beam for collimating the laser beam. The collimation optics changer has a mechanism for automatically changing the collimation optics.