Abstract: A method of applying a plurality of energy beams in the additive manufacture of a component includes a) providing a first and a second energy beam, each set up for the irradiation of a layer of a powder bed, wherein the first beam scans over a first irradiation area and the second beam scans over a second irradiation area, wherein the first and second irradiation areas are substantially arranged adjacent to each other and form part of a manufacturing plane, and b) assigning a scan vector to be scanned in the first irradiation area by the second energy beam, when a melt pool generated by the second energy beam during the scan of the vector is expected to cause less overlap with a powder bed outside of the component's geometry than a melt pool generated by the first energy beam would cause during the scan of the vector.

Abstract: A method for the additive manufacturing of a component includes providing a powdered base material for a component, in particular a component for the hot gas path of a gas turbine, building up the component layer by layer on a building platform by fusing individual layers of the base material, and introducing an oxide dispersion strengthening into a region of the component to be additively manufactured by an oxidic additive, wherein the region is usually exposed to high thermomechanical loading during operation of the component.

Abstract: A method of applying a plurality of energy beams in the additive manufacture of a component includes a) providing a first and a second energy beam, each set up for the irradiation of a layer of a powder bed, wherein the first beam scans over a first irradiation area and the second beam scans over a second irradiation area, wherein the first and second irradiation areas are substantially arranged adjacent to each other and form part of a manufacturing plane, and b) assigning a scan vector to be scanned in the first irradiation area by the second energy beam, when a melt pool generated by the second energy beam during the scan of the vector is expected to cause less overlap with a powder bed outside of the component's geometry than a melt pool generated by the first energy beam would cause during the scan of the vector.

Abstract: A method of detecting malfunction in an additive powder-bed-fusion manufacturing process includes a) monitoring the additive manufacturing process and recording an acoustic incident when the incident is outside of a given tolerance range, wherein the incident is indicative for the malfunction, b) classifying the incident, and c) defining of a measure to counteract the malfunction. A corresponding method of additive manufacturing, a corresponding apparatus as well as an additive manufacturing device detect malfunctions.

Abstract: A seal segment for a turbine and an assembly for sealing the gaps between seal segments and stator vanes of a turbine. The seal segments have a plate-shaped wall, the first lateral surface of which faces the vane tips in the assembled state of the seal segments, is surrounded by a closed circumferential edge, and can be divided into four lateral wall sections, and the plate-shaped wall has a seal element which is arranged over the entire surface of the lateral surface. A number of seal lamellae which are secured on one side are provided on at least one of the lateral wall sections and/or on at least one of the seal lateral wall sections facing adjacent seal segments when the seal segments are assembled in a turbine so as to form a ring in order to reduce a flow along the corresponding lateral wall section.

Abstract: An alloy especially for additive manufacturing, which includes (in wt %): Boron (B) 0.01%-0.1%; Titanium (Ti) 0.15%-0.3%; Chromium (Cr) 22.5%-24.25%; Carbon (C) 0.55%-0.6%; Nickel (Ni) 10.0%-15.0%; Tantalum (Ta) 3.0%-4.0%; especially 3.5%; Iron (Fe) 1.0%-4.0%; Zirconium (Zr) 0.05%-0.6%; Tungsten (W) 6.5%-7.5%; optionally: Aluminum (Al) 0%-0.15%; Manganese (Mn)<0.1%, further optionally, but as low as possible Molybdenum (Mo), Niobium (Nb), Phosphor (P), Sulfur (S), Silicon (Si), Selenium (Se), Copper (Cu), Nitrogen (N), Oxygen (O), Hafnium (Hf), remainder Cobalt (Co).

Abstract: A seal segment for a turbine and an assembly for sealing the gaps between seal segments and stator vanes of a turbine. The seal segments have a plate-shaped wall, the first lateral surface of which faces the vane tips in the assembled state of the seal segments, is surrounded by a closed circumferential edge, and can be divided into four lateral wall sections, and the plate-shaped wall has a seal element which is arranged over the entire surface of the lateral surface. A number of seal lamellae which are secured on one side are provided on at least one of the lateral wall sections and/or on at least one of the seal lateral wall sections facing adjacent seal segments when the seal segments are assembled in a turbine so as to form a ring in order to reduce a flow along the corresponding lateral wall section.

Abstract: A method of processing a surface in additive manufacturing includes assembling a structure for a component by additive manufacturing out of a bed of a powdery base material, such that the structure is provided with an internal surface and a powdery base material covers at least a part of the internal surface, and actuating the base material relatively to the structure such that the internal surface is mechanically processed by the base material.

Abstract: A method for the additive manufacturing of a component includes providing a powdered base material for a component, in particular a component for the hot gas path of a gas turbine, building up the component layer by layer on a building platform by fusing individual layers of the base material, and introducing an oxide dispersion strengthening into a region of the component to be additively manufactured by an oxidic additive, wherein the region is usually exposed to high thermomechanical loading during operation of the component.

Abstract: A device for guiding a protective gas over a powder bed for the purpose of additive production. The device includes a gas inlet for introducing the protective gas to the powder bed and a stationary gas outlet for removing the protective gas, wherein the device is furthermore designed to guide the protective gas over the powder bed in a laminar manner, and wherein the device furthermore has an outlet opening, configured parallel to a powder bed plane, for suctioning the protective gas out of a construction chamber during additive production of a component. A method for guiding a protective gas flow over a powder bed for the purpose of additive production is provided.

Abstract: A method of processing a surface in additive manufacturing includes assembling a structure for a component by additive manufacturing out of a bed of a powdery base material, such that the structure is provided with an internal surface and a powdery base material covers at least a part of the internal surface, and actuating the base material relatively to the structure such that the internal surface is mechanically processed by the base material.

Abstract: An apparatus for a facility for additively manufacturing a component having a base forming a manufacturing surface, wherein the base includes a plurality of portions, and a plurality of temperature sensors being arranged in or below the manufacturing surface. At least one temperature sensor is further arranged in each portion and the temperature sensors are configured such that a temperature of each of the portions can be measured individually by the temperature sensors.

Abstract: A turbine blade for a turbomachine, having a blade airfoil with a blade tip region and a sealing region which has an auxetic material and is arranged and designed such that, when transitioning from a rest state to an operating state of the turbine blade, the blade tip region of the turbine blade expands in a first direction perpendicular to a longitudinal axis of the blade airfoil. An auxetic material is used for a turbine blade for sealing a gas path during operation of a turbomachine.

Abstract: A method for relieving mechanical stress in an additively built component includes providing a setup of an as-built component bonded to a build plate, applying an embrittlement agent at an interface between the component and the build plate, heating the setup of the component and the build plate to a predetermined temperature (Tp), such that the embrittlement agent diffuses into the setup at the interface, and inducing a crack separation of the plate and the component due to the embrittled interface during a cooling of the setup. A corresponding additively manufactured component is made by the method.

Abstract: A method for modifying the processing capabilities of a container. The method includes providing a container that defines a cavity and comprises a wall. The wall defines at least a portion of the cavity and has thermal energy transfer characteristics. At least one of the thermal energy transfer characteristics comprises a first value. Changing the first value of the one thermal energy transfer characteristic to a second value for at least a first portion of the wall, the second value being different from the first value.

Abstract: An engine coolant pump drive system for a vehicle having an engine, an engine coolant system, and at least one sensor for sensing at least one operational condition of the vehicle is disclosed. The pump drive system includes a magnetorheological fluid (MRF) clutch, and a coolant pump. The MRF clutch includes a torque input section coupled to a torque output section via a MRF, the torque input section being configured to receive a torque input from the engine. The coolant pump is configured for operable communication with the torque output section of the MRF clutch. In response to a signal from the at least one sensor, the MRF clutch is configured to provide a continuously variable torque transfer from the torque input section to the torque output section, thereby providing for variable coolant flow in the engine coolant system via the coolant pump capable of a continuously variable speed.

Abstract: A damper assembly is provided including a linear to rotary motion conversion mechanism having an outer tube member. An inner tube member is reciprocally movable and at least partially disposed within the outer tube member. The inner tube member is adapted for linear translation in a first and a second direction. A rotatable shaft is disposed within the inner tube member. The translation of the inner tube member produces a rotation of the shaft. Also included within the damper assembly is a damping mechanism having a rotor fixed to the shaft. A coil is configured to generate an electromagnetic field in response to an applied current. A magneto-rheological fluid is in contact with the rotor, and has a variable viscosity in the presence of the electromagnetic field that, in turn, provides variable resistance to rotation of the rotor and translation of the inner tube member within the outer tube member.

Abstract: A vehicle steering control system for a vehicle/trailer combination that provides rear-wheel steering assist to improve the vehicle/trailer combination stability and handling performance. The control system provides an open-loop feed-forward control signal based on hand-wheel angle and vehicle speed. The control system includes a vehicle yaw rate command interpreter that provides a vehicle closed-loop feedback control signal based on the yaw rate of the vehicle, a trailer yaw rate command interpreter that provides a trailer closed-loop feedback control signal based on the yaw rate of the trailer, and a vehicle lateral acceleration command interpreter that provides a closed-loop feedback control signal based on the lateral acceleration of the vehicle. The closed-loop feedback signals are added together and then combined with the open-loop feed-forward control signal to provide the rear-wheel steering assist.

Abstract: The invention encompasses a temperature regulating system that includes a shell configured to be received over an outer circumferential portion of a container. The shell has dimensions to form a cavity between the outer circumferential portion of the container and the shell. A material is provided in sealing engagement between the shell and the outer circumferential portion of the container to seal the cavity from the environment. A heat exchanger is provide in fluid communication with the cavity.

Abstract: The invention provides a mold for use in a compression molding apparatus that has a frame part (41) with a hole through its center; a bottom plunger (42); and a top plunger (43); wherein the plungers are fabricated to fit substantially snugly in the hole in the frame part, and wherein at least one plunger comprises at least one low-thermal conductivity insert (44, 44?). The mold is useful in compression molding processes used in the preparation of unitized membrane electrodes.