Abstract: Method and device for solid structure formation by localized microwaves for additive fabrication of solid bodies by use of localized microwave radiation applied to a source material, in the form of a powder, wire or other solid form, so as to generate a hotspot in a thermal-runaway process or through plasma breakdown, and melt a small portion of it (with at least one dimension smaller than the microwave wavelength) thereby consolidating small pieces of the molten source material in a stepwise manner to construct the entire body.

Abstract: Device and apparatus for selective deposition of molten plastic material and method of manufacture by selective deposition. The device and the apparatus include a melting chamber communicated with a portion of a sonotrode of an ultrasonic transducer, a passage for feeding plastic material, and at least one outlet opening for supplying molten plastic material dropwise or continuously. A feeding of plastic material to the melting chamber is provided. The method includes feeding plastic material to the melting chamber configured in a device for selective deposition installed in a head of a piece of industrial manufacturing equipment, which is moved according to a strategy of its path defined by numerical control on a deposition area, and pouring plastic material melted by ultrasound through the outlet opening.

Abstract: Device and apparatus for selective deposition of molten plastic material and method of manufacture by selective deposition. The device and the apparatus include a melting chamber communicated with a portion of a sonotrode of an ultrasonic transducer, a passage for feeding plastic material, and at least one outlet opening for supplying molten plastic material dropwise or continuously. A feeding of plastic material to the melting chamber is provided. The method includes feeding plastic material to the melting chamber configured in a device for selective deposition installed in a head of a piece of industrial manufacturing equipment, which is moved according to a strategy of its path defined by numerical control on a deposition area, and pouring plastic material melted by ultrasound through the outlet opening.