FIELD: powder metallurgy. SUBSTANCE: bounds of required part cross-sections are obtained in advance or calculated by computer. Laser beam scans a powder layer and sinters it within bounds specified by cross-section limits. Powder layers are applied and progressively sintered up to forming finished part. Powder may be made of plastic, metal, ceramic or polymer substance. When laser moving continuous raster scanning is used to aim beam at target inside cross-section bounds. Laser is switched on as beam is aimed at a proper cross-section generated currently. There is a drum to spread and level powder across target area. The drum travels horizontally over target area and turns in the opposite direction as to one of its travel. Air flow of adjustable temperature comes through target area to decrease powder temperature in the course of its sintering. EFFECT: production of items within close tolerances. 27 cl, 11 dwg
