A method for manufacturing a mechanical component by additive manufacturing which includes at least one layering sequence of depositing a powder material and locally melting and resolidifying the powder material. In each layering sequence, a solid layer of solidified material is formed, wherein the solid layers jointly form a solid body. An annealing sequence subsequent to at least one layering sequence includes, locally heating at least a region of the solid body in effecting a local heat input to the immediately beforehand manufactured solid layer which was formed by the immediately precedent layering sequence, with temperature being is maintained below a melting temperature of the material.

Provided is a manufacturing method of a three-dimensional object for manufacturing a three-dimensional object by laminating unit layers using a fluid constituent material. The manufacturing method includes a unit layer formation step of forming the unit layer of one layer by forming a first unit layer in which first layers each having a first thickness are laminated and then forming a second unit layer formed of a second layer having a second thickness greater than the first thickness to adjoin the first unit layer. By executing such a manufacturing method of the three-dimensional object, it is possible to manufacture a highly dense three-dimensional object in a short time.

Provided is a manufacturing method of a three-dimensional object for manufacturing a three-dimensional object by laminating unit layers using a fluid constituent material. The manufacturing method includes a unit layer formation step of forming the unit layer of one layer by forming a first unit layer in which first layers each having a first thickness are laminated and then forming a second unit layer formed of a second layer having a second thickness greater than the first thickness to adjoin the first unit layer. By executing such a manufacturing method of the three-dimensional object, it is possible to manufacture a highly dense three-dimensional object in a short time.

An additive manufacturing system includes a plate, a build support device, at least one electromagnetic energy source, and one or more processors. The plate is at least semitransparent. The build support device is movable relative to the plate to move an object into and out of contact with a stratum of a powder distributed on a first side of the plate. The powder includes metal particles. The one or more processors control the at least one electromagnetic energy source to emit one or more energy beams that penetrate through the plate and impinge upon a selected portion of the powder in the stratum upon exiting the plate to form a layer of the object.

An additive manufacturing system includes a plate, a build support device, at least one electromagnetic energy source, and one or more processors. The plate is at least semitransparent. The build support device is movable relative to the plate to move an object into and out of contact with a stratum of a powder distributed on a first side of the plate. The powder includes metal particles. The one or more processors control the at least one electromagnetic energy source to emit one or more energy beams that penetrate through the plate and impinge upon a selected portion of the powder in the stratum upon exiting the plate to form a layer of the object.

In an example, a method comprises providing a layer of build material on a support, and applying energy to the layer of build material using an energy source. The method may further comprise reducing a spacing between the energy source and the support and following the reduction of the spacing, applying energy to the layer of build material using the energy source to cause fusion in at least part of the layer of build material.

In an example, a method comprises providing a layer of build material on a support, and applying energy to the layer of build material using an energy source. The method may further comprise reducing a spacing between the energy source and the support and following the reduction of the spacing, applying energy to the layer of build material using the energy source to cause fusion in at least part of the layer of build material.

A manufacturing method for a three-dimensional molded object includes repeating formation of a material layer and formation of a solidified layer, the material layer being formed by spreading a metal material on a base plate and the solidified layer being formed by irradiating the material layer with a laser beam or an electron beam, thereby molding a solidified body which is a laminated solidified layer on the base plate; and subjecting the base plate and the solidified body after molding to a heat treatment.

A manufacturing method for a three-dimensional molded object includes repeating formation of a material layer and formation of a solidified layer, the material layer being formed by spreading a metal material on a base plate and the solidified layer being formed by irradiating the material layer with a laser beam or an electron beam, thereby molding a solidified body which is a laminated solidified layer on the base plate; and subjecting the base plate and the solidified body after molding to a heat treatment.

The invention relates to a printhead (1) for a 3D printer, particularly a metal printer, comprising a housing (3), a device (28) for supplying a metal (14), a reservoir (7, 27), a nozzle device (2) and a piston (5), the nozzle device (2) comprising a guide sleeve (11), a nozzle plate (9) provided with an outlet (10), and a clamping device (4). The nozzle plate (9) and the guide sleeve (11) are mutually elastically braced by means of the clamping device (4), and the guide sleeve (11) and the reservoir (7, 27) are mutually elastically braced by means of the clamping device (4).