Continuous generative process for producing a...

Details Continuous generative process for producing a... Continuous generative process for producing a...

2011-02-22

2011-02-22

Tentoni, Leo B (Department: 1742)

Plastic and nonmetallic article shaping or treating: processes

Stereolithographic shaping from liquid precursor

Reexamination Certificate

active

07892474

ABSTRACT:
The invention describes a process and a device for producing at least one three-dimensional object, a photo-polymerizable material is solidified by means of simultaneous or almost simultaneous exposure of a build area or partial build area in a building plane via electromagnetic radiation, wherein a distance between a support plate, at which the object to be generated is built, and the building plane is changed during at least one exposure phase.It is possible according to the invention to solidify the three-dimensional object in a main direction during a radiation phase exceeding a current prescribed hardening depth, without interrupting supply of electromagnetic energy during the irradiation phase. Further, it is possible to control a current hardening depth of the photopolymerizable material during a building phase. Embodiments of suitable devices are also described.

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