A method for the computer-aided provision of control instructions for pulsed irradiation in the additive production of a component structure includes establishing process parameters, including a pulse frequency, a pulse width, a scan speed, and an irradiation power; defining the pulse frequency and scan speed as process constants; and determining parameter values of the pulse width and of the irradiation power from the process constants which have been defined. A corresponding computer program product, a method for bed-based additive production, and a corresponding control device are adapted for pulsed irradiation in the additive production of a component structure.

A method for the computer-aided provision of control instructions for pulsed irradiation in the additive production of a component structure includes establishing process parameters, including a pulse frequency, a pulse width, a scan speed, and an irradiation power; defining the pulse frequency and scan speed as process constants; and determining parameter values of the pulse width and of the irradiation power from the process constants which have been defined. A corresponding computer program product, a method for bed-based additive production, and a corresponding control device are adapted for pulsed irradiation in the additive production of a component structure.

A three-dimensional shaped object using a plurality of materials can be shaped, and replenishment of the materials is implemented during shaping without stopping an apparatus. A three-dimensional laminating and shaping apparatus includes a shaping chamber in which a three-dimensional laminated and shaped object is shaped, at least two material spreaders that are provided in the shaping chamber and spread materials of the three-dimensional laminated and shaped object, at least two material suppliers that supply the materials to the material spreaders, a controller that controls movements of the material spreaders and the material suppliers, and a beam irradiator that irradiates the materials with a beam. The material spreaders and the material suppliers are respectively paired, and the controller controls the movements of the material spreaders and the material suppliers so that each of the material spreaders is supplied, at a predetermined timing, with the material from a paired one of the material suppliers.

Aspects of the disclosure are directed to additively manufacturing a three-dimensional structure. As may be implemented in accordance with one or more embodiments, a plurality of stacked layers are deposited, and for one or more respective layers of the plurality of stacked layers, pores are formed within the layer by applying pulsed energy to the layer. The pulsed energy is used to create a space sealed within the layer and having an inner surface defined by material of the layer.

Aspects of the disclosure are directed to additively manufacturing a three-dimensional structure. As may be implemented in accordance with one or more embodiments, a plurality of stacked layers are deposited, and for one or more respective layers of the plurality of stacked layers, pores are formed within the layer by applying pulsed energy to the layer. The pulsed energy is used to create a space sealed within the layer and having an inner surface defined by material of the layer.

Aspects of the disclosure are directed to additively manufacturing a three-dimensional structure. As may be implemented in accordance with one or more embodiments, a plurality of stacked layers are deposited, and for one or more respective layers of the plurality of stacked layers, pores are formed within the layer by applying pulsed energy to the layer. The pulsed energy is used to create a space sealed within the layer and having an inner surface defined by material of the layer.

An additive manufacturing system can include at least one laser source and a speckle reduction system that receives light from the at least one laser source. The speckle reduction system provides laser light to an optical homogenizer that increases uniformity of laser light and can provide the light to an area patterning system.

An additive manufacturing system can include at least one laser source and a speckle reduction system that receives light from the at least one laser source. The speckle reduction system provides laser light to an optical homogenizer that increases uniformity of laser light and can provide the light to an area patterning system.

An apparatus for manufacturing a composite article from a composite material. The apparatus comprising: a pulsed broadband radiation source comprising a flashlamp and a light guide adapted to guide light emitted by the pulsed broadband radiation source to a target area. The light guide comprises at least a portion ahead of the pulsed broadband radiation source, relative to the target area, comprising a light transmitting material.

An additive manufacturing system configured to additively build an article can include an energy applicator, a build platform, and a powder nozzle configured to eject powder toward the build platform to be acted on by the energy applicator. The system can include a control module configured to control the energy applicator to create an amorphous structure forming at least a portion of the article.