Herstellung von dreidimensionalen Gegenständen durch kontrollierte Photohärtung

摘要

A process for forming three-dimensional objects layer-by-layer from a photocurable medium uses differential curing of the photocurable medium to form cured solid regions with discrete mechanical properties at selected locations to tailor a part's properties to individual needs. A stereolithographic process and apparatus building objects in a container 21 (vat) of liquid photocurable medium (22) is described in which a UV laser light source (26) is selectively applied to a surface of the medium (22) in accord with object-defining data (19). The laser (26) can be controlled in accord with different build styles to produce parts having different mechanical properties, particularly relating to high temperature resistance and durability.