| 摘要 |
PURPOSE:To obtain a molded product which is superior in formal accuracy and free from an aged deformation and deterioration in strength due to residual stress, by a method wherein at the time of formation of a three-dimensional form by piling up cured layers of photosetting resin, the whole is not cured finally at a tiling, a part of which is passed through a semi-cured state and then the whole of the semi-cured part is cured finally. CONSTITUTION:A three-dimensional form-forming device is provided with a resin solution tank 1 and molding rest 5, the molding rest 5 is supported by an elevating arm 50 and the same is provided with a generating device of a light beam 3 and a condensing lens 30. A photosetting resin solution 3 is cured by applying a light beam 3 to a part between the molding rest 5 and the surface and a photo-cured layer 40 of a fixed pattern is formed by shifting the light beam 3. Then the molding rest 5 is lowered, a process forming the photo-cured layer 40 is repeated and a molded product 4 in a three dimensional form where the photo-cured layers 40 are piled up is formed. In this instance, a final curing part 4a which is cured up to the final stage and a semi-curing part 4b which is cured up to a stage on the way are formed through division by changing a curing action of the light beam 3 to be applied to the same. Then light is applied to the molded product 4 taken out through the resin solution tank 1 with a xenon lamp and the whole of the semi-cured part 4b is cured up to the same final stage as the final curing part 4a. |
