Method for manufacturing a part from powder

A method of manufacturing a part from a powder, the method comprising:

• placing the powder with a particle size of maximum 1 mm in an air, gas, liquid or solid transit medium in an operating chamber;
• creating a microwave field within the operating chamber with a microwave radiation power of 100 W to 150 MW and a frequency of 1 GHz to 10 THz, depending on physical properties of the powder, dimensions, degree of accuracy and complexity of geometric shapes of the part to be manufactured;
• and
• developing, in the created microwave field, zones with an increased intensity of microwave radiation to develop heating zones of the powder corresponding to the zones with the increased intensity of microwave radiation, wherein the zones with the increased intensity of microwave radiation have shapes that follow a point, or a flat section or a spatial pattern of the part to be manufactured, wherein the increased intensity of microwave radiation results in a release of thermal energy sufficient to heat the powder to a sintering temperature of the powder in the heating zones, taking into account an initial temperature of the powder, and thereby sinter or melt the powder in the heating zones to produce the part;
• wherein:
• the thermal energy sufficient to heat the powder to the sintering temperature in the heating zones is released as a result of microwave radiation absorption in the zones of the increased intensity of microwave radiation;
• and
• locations of the zones of the increased intensity of microwave radiation correspond to a volumetric holographic image of the part to be manufactured and are determined by an interference matrix comprising an irradiated microwave radiation plate with a programmed holographic interference image of the part to be manufactured and placed in the operating chamber relative to a microwave radiation source so that microwave radiation passes through the interference matrix.