FIELD: process engineering.
SUBSTANCE: invention relates to powder metallurgy, particularly, to materials intended for production of 3D structures from powder materials. Powder material is hardened by irradiating it by high-energy electron beam. Note here that quantity of ions present in immediate proximity to the electron beam irradiation point is controlled. Control is carried out to ensure neutralisation of powder charged particle cloud formed around said irradiation point. Said ions can be fed into vacuum chamber or formed at irradiation of extra gas fed into vacuum chamber by high-energy electron beam.
EFFECT: controlled fusion of powder and higher quality of finished product.
20 cl, 4 dwg
