An electrophoretic device includes a fiber layer, an electrophoretic particle configured to migrate through a gap in the fiber layer, and a partition wall extended in a thickness direction of the fiber layer to separate the fiber layer into a plurality of migration cells. The partition wall includes a cured body of a curable resin, and the cured body includes a constriction part between both end portions of the fiber layer in the thickness direction.

In one example, a lighting device for an additive manufacturing machine includes an array of light sources each to emit monochromatic light within a band of wavelengths that includes a peak light absorption of a liquid coalescing agent to be dispensed on to a build material.

The technical solution relates to the field of processing polymers and can be used in various branches of the national economy for manufacturing hollow articles of the bodies-of-revolution type (tubes), and in particular for manufacturing semifinished biodegradable polymeric stents which are usable in medicine for replacing hollow organs, for example blood vessels. The apparatus for manufacturing thin-walled bodies of revolution comprises a heatable expander which is mounted rotatably about a longitudinal axis, and a feeder for supplying mouldable material, said feeder being mounted above the expander so as to be movable therealong, wherein the lower part of the feeder is heatable, the expander is hollow with a reflective internal surface, and the heater of the expander is in the form of a laser, the radiation of which is transported into the expander. The use of the apparatus will make it possible to reduce the thermal action on a polymer when producing semi-finished articles with defined geometrical dimensions from polymeric materials.

A method for manufacturing a rivet connection of a fiber composite component. The method includes positioning a first component which contains a fiber composite material in an overlap joint with a second component, laser-drilling a shared through-hole at least through the fiber composite material of the first component, inserting a rivet into the through-hole and fixing the rivet to the first and to the second component.

The disclosure relates to processing machines and methods for producing three-dimensional components by irradiating powder with a processing beam, the machines including a container with a moveable support for the powder, as well as an irradiating device with a scanner device for aligning the processing beam on a processing field at an opening of the container. The irradiating device includes a heating device that includes a heating radiation source for generating a heating beam for heating the powder from above and including a beam shaping optical unit configured to convert a first beam profile of the heating beam into a second beam profile, e.g., a ring-shaped beam profile, of the heating beam.

A three-dimensional selective repairing system, which is for selectively repairing an area of an unrepaired element by sintering, includes a scanning device, a comparing device, a spraying device and a sintering device. The scanning device is for scanning the area to obtain a repairing data. The comparing device is connected to the scanning device to receive the repairing data and produce a repairing parameter. The spraying device is controlled by the repairing parameter and includes an electrostatic generator which sprays a plurality of electrified pulverulent bodies through the electrostatic generator to form an electrified pulverulent film on a medium covered on the area. The sintering device is controlled by the repairing parameter to provide a power beam to selectively heat the electrified pulverulent film. The electrified pulverulent film melted or sintered to form a solid mass on the area.

In one example, an apparatus for generating a three-dimensional object includes an energy source to apply energy to a layer of build material to cause a first portion of the layer to coalesce and solidify, an agent distributor to selectively deliver a cooling agent onto a second portion of the layer, and a controller to control the energy source to apply energy to the layer to cause the first portion to coalesce and solidify in a first pattern and to control the agent distributor to selectively deliver the cooling agent onto the second portion of the layer in a second pattern independent of the first pattern.

In one example, a lighting device for an additive manufacturing machine includes first light sources each to emit monochromatic light within a first band of wavelengths that includes a peak light absorption of a liquid coalescing agent and second light sources each to emit monochromatic light within a second band of wavelengths different from the first band of wavelengths. Each of the first light sources or each of multiple groups of the first light sources is individually addressable to emit monochromatic light independent of any other of the first light sources or of any other group of the first light sources and each of the second light sources or each of multiple groups of the second light sources is individually addressable to emit monochromatic light independent of any other of the second light sources or of any other group of the second light sources.

Example embodiments relate to a device for control of a temperature of a mold for manufacturing a plastic part, the device including a heat exchange plate including at least one radiation head. A heat-conductive material of the heat exchange plate is in contact with a localized area of a wall of the mold. The at least one radiation head being configured to emit a beam of rays toward the heat exchange plate. Moreover, the invention relates to a method for controlling the temperature of a mold for manufacturing a plastic part.

A lamination molding apparatus including a chamber covering a molding region; a laser beam source to emit a laser beam for sintering a material powder supplied on the molding region to form a sintered layer; and a scan unit to scan the laser beam. The laser beam has one or more spot shapes including at least an elongated shape, and the scan unit is configured to scan the laser beam, of which the spot shape is an elongated shape, in a lateral direction of the elongated shape, is provided.