FIELD: powder metallurgy; production of metal powder for additive manufacturing.
SUBSTANCE: can be used in automotive, aviation, aerospace industries. Metal powder is obtained by scanning a layer of powder with an infrared laser beam. The powder is treated which has a reflectivity in the optical region of more than 70% for a wavelength in the range from 800 to 1500 nm. The processing of the specified powder is carried out with the provision of physical and/or chemical modification of the surface of the particles of the specified powder to reduce the reflectivity in the optical region at a given wavelength. The particles after treatment have a median grain size d50 from 5 to 50 mcm.
EFFECT: facilitating the melting of the powder during laser processing and the possibility of forming products from powders that are difficult to process with a laser.
14 cl, 10 dwg
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