초록 ▼

In a method for producing a three-dimensional object wherein the object is produced layer by layer by applying a layer of a material which can be solidified by irradiation with electromagnetic radiation and subsequently solidifying the layer at the points corresponding to the object by irradiation t

In a method for producing a three-dimensional object wherein the object is produced layer by layer by applying a layer of a material which can be solidified by irradiation with electromagnetic radiation and subsequently solidifying the layer at the points corresponding to the object by irradiation the problem is encountered that the production process is considerably delayed by long heating and cooldown times within the apparatus used for the production. According to the invention this problem is solved by irradiating and thereby solidifying in each layer a region of the material surrounding the object so as to produce a container wall (26) for the material (21).

대표청구항 ▼

A method for producing a three-dimensional object by layerwise solidifying a powdered material which can be solidified by irradiation with an electromagnetic radiation, the method comprising the steps of: a) moving an elevation adjustable base at least partly into a cutout of a work table, said cuto

A method for producing a three-dimensional object by layerwise solidifying a powdered material which can be solidified by irradiation with an electromagnetic radiation, the method comprising the steps of: a) moving an elevation adjustable base at least partly into a cutout of a work table, said cutout having an inner defining surface closely surrounding said base; b) charging an amount of said powdered material corresponding to a predetermined thickness of a first layer into said cutout onto said base; c) irradiating a contour region of said first layer adjacent to said inner defining surface of said cutout; d) lowering said base by an amount corresponding to a layer thickness of a next layer; e) charging an amount of said powdered material corresponding to said layer thickness of said next layer into said first layer; f) irradiating regions of said next layer which correspond to said object to be formed and to said contour region adjacent to said inner surface of said cutout to form said object and a container having a wall surrounding said object; and g) repeating said steps d) to f) for a predetermined number of layers to form said object within said container made from said powdered material; wherein, before producing said object, solidifying a material layer over the entire area enclosed by the container wall so as to produce a closed bottom layer for said container.