Title:
3D PRINTER HAVING MICROHOLE PROCESSING FUNCTION, AND METHOD FOR PROCESSING MICROHOLE BY USING SAME
Document Type and Number:
WIPO Patent Application WO/2021/025307
Kind Code:
A1
Abstract:
A 3D printer having a microhole processing function, according to an embodiment of the present invention, comprises a bed, a first laser unit, and a second laser unit. The bed is arranged inside a liquid photopolymer contained in a water tank. The first laser unit is arranged above the water tank and the liquid photopolymer, and emits a first beam at the liquid photopolymer on the bed so as to cure the liquid photopolymer and stack same on the bed one layer at a time, thereby forming a structure. The second laser unit is arranged so as to be spaced from the first laser unit at a predetermined distance, and emits a second beam at the structure obtained by curing the liquid photopolymer and stacking same on the bed, thereby forming a microhole. The first beam is an ultraviolet laser beam for curing and the second beam is an ultraviolet solid-state laser beam having a laser drilling function. In a case in which a method for processing a microhole by using a 3D printer having a microhole processing function, according to embodiments of the present invention, is set to constantly process until the position of a microhole on an x-y plane of a structure to be outputted reaches a first point in the z-axis direction, the method comprises: a first step in which a first laser unit emits a first beam at a bed when a modeling file of the structure to be outputted is inputted into the 3D printer, and thus a liquid photopolymer contained in a water tank is cured and stacked one layer at a time so that a first structure is outputted up to the first point in the z-axis direction; and a second step in which a second laser unit emits a second beam at the first structure outputted up to the first point in the z-axis direction so as to form a first microhole in the first structure.
Inventors:
HONG JUNG-WUK (KR)
KO KWONHWAN (KR)
LEE SANGMIN (KR)
KO KWONHWAN (KR)
LEE SANGMIN (KR)
Application Number:
PCT/KR2020/008985
Publication Date:
February 11, 2021
Filing Date:
July 09, 2020
Export Citation:
Assignee:
KOREA ADVANCED INST SCI & TECH (KR)
International Classes:
B29C64/277; B29C64/106; B29C64/214; B29C64/245; B29C64/268; B33Y10/00
Foreign References:
| JP2003025453A | 2003-01-29 | |||
| JPH08244118A | 1996-09-24 | |||
| JP2005533172A | 2005-11-04 | |||
| JPH08238678A | 1996-09-17 | |||
| JPH1142714A | 1999-02-16 |
Attorney, Agent or Firm:
SON, Jae Yong (KR)
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