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US 12,668,022 B2Granted
Three-dimensional printing
AssigneePeridot Print LLC
InventorsEmre Hiro Discekici, Graciela E Negri Jimenez, Shannon Reuben Woodruff, Alay Yemane, Mark H. Kowalski
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Abstract
In an example of a surface treatment method, a three-dimensionally printed polyamide object is used. In the surface treatment method, the three-dimensionally printed polyamide object is first exposed to benzyl alcohol. In the surface treatment method, the three-dimensionally printed polyamide object is exposed to microwave irradiation after the benzyl alcohol exposure.
Claims17
A surface treatment method, comprising:
- exposing a final three-dimensionally printed polyamide object to benzyl alcohol, wherein the final three-dimensionally printed polyamide object is formed from a solid polyamide build material composition;
- and
- exposing the three-dimensionally printed polyamide object to microwave irradiation after the benzyl alcohol exposure, thereby reducing a surface roughness of the final three-dimensionally printed polyamide object;
- wherein exposing the three-dimensionally printed polyamide object to the benzyl alcohol involves soaking the three-dimensionally printed polyamide object in the benzyl alcohol;
- and
- wherein the soaking is performed for a time period ranging from about 1 hour to about 25 hours;
- wherein the surface treatment method is a post-print finishing technique.
4 more elements
A method, comprising:
- forming a final 3D printed polyamide object by:
- iteratively applying a solid polyamide build material composition to form respective build material layers;
- based on a 3D object model, selectively applying a fusing agent on the respective build material layers to form respective patterned portions;
- and
- exposing the respective build material layers to electromagnetic radiation to selectively coalesce the patterned portions and form the final 3D printed polyamide object;
- exposing the final 3D printed polyamide object to benzyl alcohol;
- and
- exposing the 3D printed polyamide object to microwave irradiation after the benzyl alcohol exposure, thereby reducing a surface roughness of the final 3D printed polyamide object;
- wherein exposing the 3D printed polyamide object to the benzyl alcohol involves soaking the 3D printed polyamide object in the benzyl alcohol;
- and
- wherein the soaking is performed for a time period ranging from about 1 hour to about 25 hours;
- wherein the exposing to benzyl alcohol and to microwave irradiation is a post-print finishing technique.
9 more elements
Dependencies are inferred from the claim text.