An NC device as a numerical control device controls an additive manufacturing apparatus for producing an object by layering, on a workpiece, a material melted by being irradiated with a beam. The NC device includes: a feature quantity extracting unit that extracts, from image data, a feature quantity for determining a welding state that is a state where a molten material is added to the workpiece; and a process map creating unit that creates a process map in which a shape of the object and a layering condition are associated with each other. The layering condition is selected from among a plurality of layering conditions on the basis of a result of determination of the welding state, and includes at least one of beam intensity and a supply amount of a material.

An NC device as a numerical control device controls an additive manufacturing apparatus for producing an object by layering, on a workpiece, a material melted by being irradiated with a beam. The NC device includes: a feature quantity extracting unit that extracts, from image data, a feature quantity for determining a welding state that is a state where a molten material is added to the workpiece; and a process map creating unit that creates a process map in which a shape of the object and a layering condition are associated with each other. The layering condition is selected from among a plurality of layering conditions on the basis of a result of determination of the welding state, and includes at least one of beam intensity and a supply amount of a material.

An assembly for calibrating a head system of a power radiation source of an additive manufacturing apparatus comprises: a calibration plate comprising a plurality of reference marks, and a firing medium made of at least one material that is sensitive to the radiation of the source, this medium leaving visible the reference marks of the calibration plate when it is in place on the latter, characterized in that the firing medium comprises a plurality of windows that are distributed so as to be superposed with the various reference marks of the calibration plate and to leave said marks visible when the firing medium is in place on the calibration plate. There is also a method for calibrating such a system.

An assembly for calibrating a head system of a power radiation source of an additive manufacturing apparatus comprises: a calibration plate comprising a plurality of reference marks, and a firing medium made of at least one material that is sensitive to the radiation of the source, this medium leaving visible the reference marks of the calibration plate when it is in place on the latter, characterized in that the firing medium comprises a plurality of windows that are distributed so as to be superposed with the various reference marks of the calibration plate and to leave said marks visible when the firing medium is in place on the calibration plate. There is also a method for calibrating such a system.

Disclosed are 3D printing equipment, a system, and a method for food design and production. The 3D printing equipment has a bipolar microwave heating antenna for focusing heating on a material in an extrusion nozzle. The extrusion nozzle is between the anode antenna and the cathode antenna of the bipolar microwave heating antenna. The anode antenna and the cathode antenna limit a microwave electric field between them, thereby implementing focused heating on the material.

The technology disclosed relates to high utilization of donor material in a writing process using Laser-Induced Forward Transfer. Specifically, the technology relates to reusing, or recycling, unused donor material by recoating target substrates with donor material after a writing process is performed with the target substrate. Further, the technology relates to target substrates including a pattern of discrete separated dots to be individually ejected from the target substrate using LIFT.

The technology disclosed relates to high utilization of donor material in a writing process using Laser-Induced Forward Transfer. Specifically, the technology relates to reusing, or recycling, unused donor material by recoating target substrates with donor material after a writing process is performed with the target substrate. Further, the technology relates to target substrates including a pattern of discrete separated dots to be individually ejected from the target substrate using LIFT.

Apparatuses for dynamically sensing infrared (IR) radiation in an electron beam powder bed fusion (EB-PBF) printer are provided. A radiation collector receives radiation from a surface of the powder bed. An IR-transparent material rejects one or more non-IR wavelengths, and a lens focuses the IR radiation onto an optical fiber. The IR radiation is carried from the vacuum chamber of the printer to a sensor, where IR information is determined based on the received IR radiation. The IR information may be received from the sensor and used by the print controller to modify one or more parameters, such as beam intensity or scanning rate, on the fly or during the next print cycle. An occlusion member can be used to selectively block or expose the radiation collector to protect the radiation collector from condensation of vapor from vaporization of particles at high temperatures.

Apparatuses for dynamically sensing infrared (IR) radiation in an electron beam powder bed fusion (EB-PBF) printer are provided. A radiation collector receives radiation from a surface of the powder bed. An IR-transparent material rejects one or more non-IR wavelengths, and a lens focuses the IR radiation onto an optical fiber. The IR radiation is carried from the vacuum chamber of the printer to a sensor, where IR information is determined based on the received IR radiation. The IR information may be received from the sensor and used by the print controller to modify one or more parameters, such as beam intensity or scanning rate, on the fly or during the next print cycle. An occlusion member can be used to selectively block or expose the radiation collector to protect the radiation collector from condensation of vapor from vaporization of particles at high temperatures.

Additive-manufacturing systems, surface-processing apparatuses, and methods of forming products using an additive-manufacturing head are provided. In one aspect, an additive-manufacturing system includes an additive-manufacturing head and a surface-processing device coupled to the additive-manufacturing head. In another aspect, a surface-processing apparatus for an additive-manufacturing head includes a housing configured to be coupled to the additive-manufacturing head and a surface-processing device coupled to the housing. In a further aspect, a method of forming a product using an additive-manufacturing head includes forming one or more layers of the product with the additive-manufacturing head and processing at least one of the one or more layers of the product with a surface-processing device coupled to the additive-manufacturing head.