Sacrificial pyrolysis method for additively manufactured ceramics
AssigneeHRL Laboratories, LLC
InventorsScott M. Biesboer, Jacob M. Hundley, Zak C. Eckel
Life of this patent
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Abstract
A sacrificial substrate for use in stereolithography, having a first surface configured to be attached to a build platform, and a second surface of the sacrificial substrate configured to be attached to a photopolymer part. The sacrificial substrate physically separates the build platform and the photopolymer part, and serves as the deposition surface for the photopolymer part in place of the build platform. The sacrificial substrate may be separated from the build platform and then separated from the photopolymer part via pyrolysis, oxidation, or etching to thereby yield the free photopolymer part without subjecting the part to excess physical force or damage.
Claims20
A sacrificial substrate for utilization in stereolithography, the sacrificial substrate comprising a sacrificial substrate polymer, in which a first side of the sacrificial substrate is configured to be attached to a build platform, and a second side of the sacrificial substrate is configured to be attached to a photopolymer part.
A method of additively manufacturing a photopolymer part, the method comprising:
- attaching a sacrificial substrate to a build platform;
- forming a photopolymer part on the sacrificial substrate;
- separating the sacrificial substrate from the build platform;
- and
- removing the sacrificial substrate from the photopolymer part.
Dependencies are inferred from the claim text.