A method of manufacturing a three-dimensional object through layer-by-layer material application

摘要

The present invention relates to a method for manufacturing a three-dimensional mold and a three-dimensional shaped object (1) through layer-by-layer material application, geometric data for the shaped object (1), the three-dimensional shaped object (1) A support (2) having a base surface (3) for supporting a first material (4) and a second material (5) capable of being solidified are provided. In the solidified state, the second material 5 has a greater strength than the solidified first material 4 . The solidified first material 4 may be dissolved in a solvent. For the formation of the negatively shaped layer 12, the negatively shaped layer 12 has a negatively shaped cavity 13 of the material layer of the shaped object 1 to be manufactured, the cavity is The material parts of the flowable first material 4 are positioned on the base surface 3 and/or on this surface according to the geometric data so as to have the negative shape of the material layer of the shaped object 1 to be manufactured. It is applied to the solidified material layer of the three-dimensional shape object (1). The negative shape layer 12 is solidified. For the formation of the shaped object layer 16 , the cavity 13 is filled with the second material 5 , after which the second material 5 is solidified. Regions of the solidified negatively shaped layer 12 and/or the solidified negatively shaped object layer 16 that protrude beyond a plane disposed at a predetermined distance from the base surface 3 are susceptible to machining material removal. is removed by The above steps are repeated at least once. The negatively shaped layers 12 are contacted with the solvent so that the solidified first material 4 is dissolved in the solvent.