Systems and methods of adapting the geometrical shape of a laser beam in laser-based powder-bed fusion (PBF) are provided. An apparatus for laser-based powder-bed fusion includes a depositor that deposits a plurality of layers of a powder material. The apparatus further includes a laser beam source that generates a laser beam having a variable beam geometry. A laser application component applies the laser beam in one of a plurality of beam geometries to fuse the powder material to construct a build piece.

An additive manufacturing apparatus including a platform and a dispenser configured to deliver successive layers of feed material onto the platform. One or more light sources generate multiple light beams to selectively fuse feed material in a layer on the platform and multiple optical assemblies receive the multiple light beams, where each respective optical assembly transmits a respective light beam along a respective optical path through the optical assembly. Each light beam is directed to a scan spot on the layer of feed material on the platform to scan the light beam to sweep the scan spot along a controllable path across the layer of feed material on the platform. An optical multiplexer selectively transmits the return light emitted or reflected from the respective scan spot from a respective optical path of a selected respective optical assembly of the multiple optical assemblies to the measurement device.

Exposure device (6) for an apparatus (1) for the additive production of three-dimensional objects (2), comprising: —at least one energy beam generating device (7), which is configured in order to generate an energy beam (4), —at least one light-guide fibre (8), which is optically couplable or coupled to the energy beam generating device (7) and is configured in order to guide at least one energy beam (4), introduced into it, between an input region (8a) of the light-guide fibre (8) and an output region (8b) of the light-guide fibre (8), the light-guide fibre (8) comprising a plurality of fibre cores (15), at least one energy beam (4) being introducible or introduced into each fibre core (15).

Provided are a systems and methods for manufacturing objects by solid freeform fabrication, especially titanium and titanium alloy objects, wherein the deposition rate is increased by using two separate heat sources, one heat source for heating the deposition area on the base material and one heat source for heating and melting a metallic material, such as a metal wire or a powdered metallic material.

An additive manufacturing device performs preliminary heating of a powder material laid and leveled in an irradiation region of an electron beam by irradiating the powder material with the electron beam and manufacturing an additively manufactured article thereafter by irradiating the powder material with the electron beam and melting the powder material. The additive manufacturing device includes a beam emitting unit emitting the electron beam and irradiating the powder material with the electron beam. When the preliminary heating is performed, the beam emitting unit performs irradiation with the electron beam along an irradiation path in a first direction and performs irradiation with the electron beam thereafter along an irradiation path in a second direction set at a jump distance from the irradiation path in the first direction as a direction opposite to the first direction.

An additive manufacturing device performs preliminary heating of a powder material laid and leveled in an irradiation region of an electron beam by irradiating the powder material with the electron beam and manufacturing an additively manufactured article thereafter by irradiating the powder material with the electron beam and melting the powder material. The additive manufacturing device includes a beam emitting unit emitting the electron beam and irradiating the powder material with the electron beam. When the preliminary heating is performed, the beam emitting unit performs irradiation with the electron beam along an irradiation path in a first direction and performs irradiation with the electron beam thereafter along an irradiation path in a second direction set at a jump distance from the irradiation path in the first direction as a direction opposite to the first direction.

An additive manufacturing device performs preliminary heating of a powder material laid and leveled in an irradiation region of an electron beam by irradiating the powder material with the electron beam and manufacturing an additively manufactured article thereafter by irradiating the powder material with the electron beam and melting the powder material. The additive manufacturing device includes a beam emitting unit emitting the electron beam and irradiating the powder material with the electron beam. When the preliminary heating is performed, the beam emitting unit performs irradiation with the electron beam along an irradiation path in a first direction and performs irradiation with the electron beam thereafter along an irradiation path in a second direction set at a jump distance from the irradiation path in the first direction as a direction opposite to the first direction.

A shaping apparatus is equipped with: a beam shaping system having a beam irradiation section that includes a condensing optical system which emits a beam and a material processing section which supplies a shaping material irradiated by the beam from the beam irradiation section; and a controller which, on the basis of 3D data of a three-dimensional shaped object to be formed on a target surface, controls a workpiece movement system and the beam shaping system such that a target portion on the target surface is shaped by supplying the shaping material from the material processing section while moving the beam from the beam irradiation section and the target surface on a workpiece (or a table) relative to each other. Further the intensity distribution of the beam in the shaping plane facing the emitting surface of the condensing optical system can be modified.

A device for the making of a three-dimensional object by means of layer by layer consolidation of a powderlike construction material by electromagnetic radiation or particle beam has a control unit that controls an irradiation device such that the powder particles of the construction material are bonded together at the sites where the radiation impinges on the construction material. A selective heating device is designed so that any given partial surface of the construction field can be heated before and/or after to a plateau temperature, which is significantly higher than the temperature of at least a portion of the construction field outside the partial surface. The control unit actuates the selective heating device such that the partial surface has a predefined minimum distance from the edge of the construction field.

A device for the making of a three-dimensional object by means of layer by layer consolidation of a powderlike construction material by electromagnetic radiation or particle beam has a control unit that controls an irradiation device such that the powder particles of the construction material are bonded together at the sites where the radiation impinges on the construction material. A selective heating device is designed so that any given partial surface of the construction field can be heated before and/or after to a plateau temperature, which is significantly higher than the temperature of at least a portion of the construction field outside the partial surface. The control unit actuates the selective heating device such that the partial surface has a predefined minimum distance from the edge of the construction field.