3D printing method and 3D printing formed body
US11890812B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2022 |
| Grant date | Feb 6, 2024 |
| Priority date | — |
| Expiry date | Dec 1, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y70/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present disclosure provides a 3D printing method including: a resin providing step of providing a dual cure resin; a light curing step of irradiating the dual cure resin by an ultraviolet light to perform 3D printing so as to form an intermediate body having a predetermined lattice shape; a stretching step of applying a stress on the intermediate body in a stretching direction according to a stretching ratio of a predetermined size to stretch and form a stretched body; and a thermal curing step of heating the stretched body to perform thermal curing and shaping so as to form a 3D printing formed body. When the light curing step is performed, a size in a non-stretching direction of the intermediate body is correspondingly pre-compensated based on the stretching ratio. The present disclosure further provides a 3D printing formed body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.