Abstract: A sintering furnace (1) for sintering dental workpieces (2), wherein the sintering furnace (1) has a heating element (3) with a receiving space (4) for receiving the workpiece (2) during sintering. The receiving space (4) is a portion of an interior space (5) within the heating element (3), and the heating element (3) comprises or consists of silicon carbide, wherein the heating element (3) is designed, at least in parts, as a slotted tube, and the slot (6) in the tube forming the heating element (3) has a helical configuration in a heating region (7), in which the heating element (3) encloses the receiving space (4).

Abstract: Embodiments reduce the draining of HF ignition energy via a data line for data transmission between a welding device and another part of a welding assembly. A decoupling apparatus is provided, in which a first data line portion of the data line is connected to a first coupling element and a second data line portion of the data line is connected to a second coupling element. The first coupling element and the second coupling element are interconnected via a wireless coupling path for galvanic separation of the data line, and a separate power supply is provided for each of the first coupling element and the second coupling element. The power supplies of the first coupling element and the second coupling element are decoupled from one another for a HF voltage on the data line as a result of the HF ignition voltage.

Abstract: A MIG welding method for carbon steels using an Ar shielding gas. The method includes short-circuiting a welding wire and a base material. The average short-circuiting frequency in welding is 20 Hz to 300 Hz and the maximum short-circuiting period is 1.5 s or less.

Abstract: An espresso press for forcing hot water through coffee grounds into a container rests on a support surface, and is comprised of a base, a stand projecting upwardly from the support surface, an arbor assembly, a brewhead that includes a brewhead mount fixed with the stand, and an espresso chamber adapted to receive filter baskets of various sizes. The arbor assembly is comprised of an arbor mount, and an arbor that includes a movable shaft the arbor aperture and a plunger slidably fixed with the shaft. The arbor assembly further includes a rack-and-pinion arrangement that includes a rack gear fixed with the shaft of the arbor, and a pinion gear partially projecting into the arbor aperture and adapted to engage the rack gear of the arbor when the arbor is fixed within the arbor aperture. The pinion gear is rotatable with a manual lever.

Abstract: We describe a device for calibrating an irradiation system of an apparatus for producing a three-dimensional workpiece, the irradiation system comprising an irradiation unit for selectively irradiating an irradiation beam onto an irradiation plane, wherein the device comprises: a control unit configured to control the irradiation system to irradiate the irradiation beam onto the irradiation plane, and an optical detection unit coupled to the control unit, wherein the optical detection unit comprises an optical detector and an objective lens for optically detecting a portion of the irradiation plane, wherein the optical detection unit is configured to detect a position of a spot of the irradiation beam on the irradiation plane, wherein the objective lens is adapted to be arranged, with respect to an irradiation beam path of the irradiation beam, between the optical detector and an irradiation beam scanner of the irradiation system, wherein the optical detection unit is configured to detect the position of the

Abstract: A composite roof panel of a vehicle disposed vertically above a passenger cabin of the vehicle includes: a first one or more layers of carbon fiber; a second one or more layers of carbon fiber; a binder material configured to bind the first and second one or more layers of carbon fiber; first and second electrical conductors that are: disposed between the first one or more layers of carbon fiber and the second one or more layers of carbon fiber; configured to be selectively electrically connected to a battery of the vehicle; and electrically connected to at least one of the first and second one or more layers of carbon fiber.

Abstract: A method and an irradiation device for locally melting a material are described, wherein an area of incidence of the energy beam on the material is moved. In the process, at least one first energy beam and one second energy beam are generated, the second energy beam is moved relative to the first energy beam and the first energy beam and the second energy beam are coupled in a common beam path into an energy beam movement unit in such a way that they are moved together over the material as a combination energy beam.

Abstract: Methods for detecting a working area of a generative manufacturing device and manufacturing devices for generatively manufacturing components from a powder material are disclosed. The methods include scanning of an optical working beam of the generative manufacturing device in the working area, detecting signal values of remitted light of the optical working beam traveling along an optical axis of the optical working beam in a location-dependent manner, wherein a signal value is assigned to each location of the scan of the optical working beam in the working area, and obtaining an image of the working area from the location-dependent detected signal values. The optical working beam for detecting the working area is operated with an optical output power that is reduced compared to a lower power limit for the optical output power of the optical working beam used during generative manufacturing.

Abstract: A machine for preparing a beverage (3) from a flavouring ingredient (2) has a beverage processing unit (10,20) with: a holder (10) delimiting a mixing chamber (11) in which the flavouring ingredient is received, held and mixed with water (4) during beverage preparation; and a water inlet (22) configured to guide water (4) into the mixing chamber (11) where it is mixed with the flavouring ingredient (2) to form the beverage (3). The machine (1) has a thermal conditioner (30) that has a body (31) with: a guide (32) for guiding the water (4) towards the beverage processing unit (10,20); and a thermal device (33) that is able to be powered to thermally conditioning the guide (32). The machine (1) has a liquid driving arrangement (5) with: a driving mode to drive the water (4); and a stationary mode.

Abstract: A monitoring system (10) for a food preparation system (100, 200, 300) comprises a sensor unit 114; 214, 216, 222; 308, 312, 308a, 308b) having at least one sensor to determine current sensor data of food being loaded or unloaded to or from a food processing chamber (102; 236; 302) of the food preparation system (100, 200, 300); a processing unit (1820) to determine current feature data from current sensor data; a classification unit (1840) to determine characteristic data of food (228, 232) being present within the food processing chamber (102; 236; 302) from the current feature data; and a control unit (1860) to control at least on actuator adapt ed to inform or alert an user or to set processing parameters of the food preparation system (100, 200, 300) based on the determined characteristic data of food being present within the food processing chamber (102; 236; 302).

Abstract: A carbonation device for beverages includes a carbonation tank to receive a beverage to be carbonated and carbon dioxide so as to generate a carbonated beverage, carbonated with the carbon dioxide, and a dispensing device in fluid communication with the carbonation tank to dispense, through a duct, the carbonated beverage to a container for carbonated beverages, the carbonated beverage flowing along the duct in a flow direction. The carbonation device further includes a carbonation sensor associated with the duct and having a radiation source to generate a radiation which strikes the duct along an irradiation direction incident to the flow direction. The carbonation sensor also includes a first photodiode placed on the irradiation direction from a side opposite to the radiation source with respect to the duct, or as an alternative, a second photodiode placed along a diffusion direction substantially orthogonal to the irradiation direction.

Abstract: Methods are provided for processing a powdery material with an electron beam system for additive manufacturing of components, which solve the problem of electrostatic powder expulsion and significantly reduce process times. This effect is achieved by using acceleration voltages of 90 kV or greater in the preheating step and/or in the melting step.

Abstract: A towel heating barrel is provided and includes: a barrel body, having a receiving space to receive a to-be-heated object; a barrel cover, connected to the barrel body and capable of being disposed at a first position or a second position, wherein the first position is the barrel cover being closed with respect to the barrel body; the second position is the barrel cover being open with respect to the barrel body; a first detection assembly, configured to detect whether the object is received in the receiving space to obtain a first detection result; and a heating assembly, arranged on the barrel body to heat the barrel body to further heat the object received in the receiving space, wherein the heating assembly is configured to stop generating heat based on the first detection result.

Abstract: A method for operating a manufacturing device for additive manufacturing of a three-dimensional object includes irradiating a subregion of a build material within a building zone in which a beam of a beam source is directed onto the build material by a scanning unit. An amount of energy introduced is chosen such that the build material is solidified, so that a subregion of the three-dimensional object to be manufactured is formed. The method further includes controlling at least one irradiation parameter that characterizes the irradiation such that the irradiation parameter lies in a process window that changes location-dependently over an area of the building zone. The process window presets a relationship between a sensor signal detected by a sensor unit and permissible values for the irradiation parameter.

Abstract: There is provided a technique capable of shortening a temperature stabilization time in a process chamber by improving a heat insulation performance of a lower portion of the process chamber. A heat insulation structure is arranged in a vicinity of a furnace opening of a heat treatment furnace wherein a temperature gradient is formed at the vicinity of the furnace opening. The heat insulation structure includes a plurality of heat insulation plates with predetermined gaps therebetween. Each heat insulation plate includes a heat shield made of metal; and a seal made of quartz or ceramics and configured to cover a front surface and a rear surface of the heat shield. The heat shield is arranged in a vacuum cavity provided in the seal.

Abstract: Provided is a resistance spot welding method wherein main current passage includes two or more electrode force application steps including a first electrode force application step and a second electrode force application step following the first electrode force application step, an electrode force F1 in the first electrode force application step and an electrode force F2 in the second electrode force application step in the main current passage satisfy a relationship F1>F2, and an electrode force switching point Tf from the first electrode force application step to the second electrode force application step in the main current passage is set to satisfy predetermined relational formulas.

Abstract: The present disclosure describes a PTC heating device for, e.g., an air-conditioning system of a motor vehicle. The PTC heating device includes first and second PTC thermistors each having a first and second electrical contacting surface that lie opposite one another. The PTC thermistors are arranged sandwiched between a first and a second electrical insulation. A first electrical line path is arranged between the first PTC thermistors and the first electrical insulation. The first electrical line path is electrically connected to the first contacting surface of the first PTC thermistors. A second electrical line path is arranged between the second PTC thermistors and the first electrical insulation. The second electrical line path is electrically isolated from the first line path and electrically connected to the first contacting surface of the second electric PTC thermistors.

Abstract: A movable forming device (10) to fold a dough piece (P) by moving one end (PS) of the dough piece (P) onto the other end (PT) of the dough piece includes at least one suction tool (23) which holds the one end of the dough piece by suctioning and lifting the one end from its upside, and a supporting tool (33) including a support part (33a) which is movable below the suction tool. The one end of the dough piece is grasped between the suction tool and the supporting part by bringing the suction tool and the supporting part closer to each other.

Abstract: An additive manufacturing system includes a work region having a layer of metallic powder distributed across at least a portion of the work region. The system further includes a power source, a scanning and focusing system and a processor. The processor is configured to control the power source to emit a beam of energy at a power level and to manipulate the beam of energy across the work region in a plurality of build tracks to form a part from the fused metallic powder. The processor further determines a cooling rate at a termination of each of the plurality of build tracks and controls the power level of the power source in response to the determined cooling rate.

Abstract: Systems and methods for additive manufacturing are described. In some embodiments, a method of controlling the one or more laser energy sources of an additive manufacturing system may be based at least in part on a scan angle and/or desired energy density. Systems and methods for controlling melt pool spacing are also described.