A strongly scattering optoceramic converter material having a density of less than 97% is provided, as well as a method for producing such an optoceramic material. By appropriately choosing in particular the composition, blending method, and sintering conditions, the production method permits to produce converter materials with tailored properties.

An ink composition for use as a support ink in three dimensional (3D) printing processes comprises a dispersion of solid particles in liquid carder, compatible with an inkjet print head, wherein after removing the liquid carder, the solid particles serve as support material for a Three Dimensional (3D) printed object, wherein the support material is separable from the 3D printed object.

A method for making a three-dimensional object by means of layer-wise application and selective solidification of a pulverulent building material The method includes applying a layer of the pulverulent building material onto a build area by an application device The application device includes a recoating unit movable across the build area in an application direction. The method further includes solidification of the applied powder layer at positions corresponding to a cross-section of the object to be made, and repeating the steps of applying and selective solidification until the object is completed. The pulverulent building material to be applied onto the build area is heated locally by a radiant heater before being applied.

A bonded abrasive article includes elongate shaped abrasive particles. The elongate shaped abrasive particles comprise an elongate shaped ceramic body having opposed first and second ends joined to each other by at least two longitudinal sidewalls. At least one of the at least two longitudinal sidewalls is concave along its length. At least one of the first and second ends is a fractured surface.

Provided is a system, method, and apparatus for forming surface designs in hard-setting materials. The method includes depositing a hard-setting material mix to create a construction component, controlling a movable unit to manipulate a surface of the construction component with a first profile tool arranged on the movable unit based on surface design data before the hard-setting material mix sets, and controlling the movable unit or at least one other movable unit to manipulate the surface of the construction component with a second profile tool arranged on the movable unit or the at least one other movable unit based on the surface design data before the hard-setting material mix sets, wherein the second profile tool comprises a blade edge and a trowel edge.

A method of redefining an opening in a composite component comprises filling the opening with a filling material, where the opening is defined in a body of the composite component and opens onto a surface defined by the composite component, and redefining the opening such that the opening extends into the body. Some methods comprise removing an existing coating from the surface of the composite component prior to filling the opening with the filling material and applying a new coating to the surface prior to redefining the opening such that the opening extends through the new coating and into the body. An exemplary composite component comprises a body, a surface with a coating thereon, an original opening defined through the body and filled with a filling material, and a new opening defined through the coating into the body, which may be defined at a new location from the original opening.

A mounting adapter including a bearing for rotatably mounting a surface processing tool to a tool holder body. The bearing has a rotatable hub including an attachment in an upper portion thereof for non-rotatable attachment to the tool holder body. The mounting adapter includes a rubber flex pad having a periphery and a first aperture. The mounting adapter includes an element supporting the periphery of the rubber flex pad, the element having a second aperture in vertical registry with and beneath the first aperture. The mounting adapter includes an end plug within the second aperture for closing the first aperture. The end plug supports the flex pad from beneath the second aperture.

A bonded abrasive article includes elongate shaped abrasive particles. The elongate shaped abrasive particles comprise an elongate shaped ceramic body having opposed first and second ends joined to each other by at least two longitudinal sidewalls. At least one of the at least two longitudinal sidewalls is concave along its length. At least one of the first and second ends is a fractured surface.

Device for the additive production of three-dimensional components (2), namely a laser melting device or laser sintering device, in which a component (2) is produced by successive solidifying of individual layers (3) made from solidifiable construction material, by the effect of radiation (4), through melting of the construction material (5), wherein the dimensions and/or temperature of the melt area (6) generated by a point-shaped or line-shaped energy input can be captured by a sensor device (8) of a process monitoring system, and sensor values for evaluation of a component quality can be deduced therefrom, wherein the radiation (9) created by the melt area and used for the generation of the sensor values passes through the scanner used for the melt energy input, and is guided from there to the sensor device (8) of the process monitoring system, wherein an optical focus tracking device (20) is arranged in the radiation path used for generation of the sensor values between the scanner (10) and the sensor device (8) of the process monitoring system, which optical focus tracking device can be controlled by electronic machine data for focus tracking.

A method of detecting an air gap in a gypsum-based building board includes cooling a surface of a gypsum-based building board that has generated heat because of a hydration reaction of calcined gypsum by applying a cooling medium to the surface, and detecting a temperature distribution of the surface of the gypsum-based building board after completion of the cooling.