FIELD: chemistry.
SUBSTANCE: invention relates to production of three-dimensional objects by additive production method. Proposed method comprises the steps of: a) feeding construction material and b) melting of construction material with light beam (2). At that, steps a) and b) are performed so that the object from molten building material is progressively made. At step b) beam (2) is projected onto construction material to create on primary material primary spot, and the beam is repeatedly scanned in two dimensions in accordance with the first scanning model in order to create effective spot (21) on the construction material. This effective spot has a two-dimensional energy distribution. Effective spot (21) is shifted relative to the manufactured object in order to progressively produce the object by melting the construction material.
EFFECT: technical result is higher speed and quality of fusion of construction material.
25 cl, 31 dwg
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