Title:
DEVICE FOR REAL-TIME CHECKING AND CORRECTING PROCESS STATE OF THREE-DIMENSIONAL LAMINATION PROCESS, AND METHOD TO WHICH SAME IS APPLIED
Document Type and Number:
WIPO Patent Application WO/2018/216845
Kind Code:
A1
Abstract:
Proposed is a device for three-dimensional lamination process using metal as a raw material, wherein the device determines in real time whether a structure being manufactured by the device has abnormality, and performs a feedback control, so that the device can improve the quality of the structure and can manufacture the structure without additional defect checking. The present invention provides a device equipped with a function of real-time monitoring and correcting a process state of a three-dimensional lamination process, and a method therefor, the device having the functions of: measuring a melt pool signal to determine whether there is abnormality; vibrating a product of each stage at a resonance frequency of the product; calculating a resonance frequency of a product of each stage via finite element analysis; analyzing a collected signal and calculating a resonance frequency and a damping coefficient; comparing and analyzing reference data and measured data; and storing data of each stage. Therefore, the device can improve the quality of a three-dimensional lamination structure, establish a forming condition database, and improve productivity.
Inventors:
KANG LAE HYONG (KR)
HAN DAE HYUN (KR)
HAN DAE HYUN (KR)
Application Number:
PCT/KR2017/006945
Publication Date:
November 29, 2018
Filing Date:
June 30, 2017
Export Citation:
Assignee:
NAT UNIV CHONBUK IND COOP FOUND (KR)
International Classes:
B22F3/105; B33Y10/00; B33Y50/00
Domestic Patent References:
| WO2016198885A1 | 2016-12-15 |
Foreign References:
| KR20040012550A | 2004-02-11 | |||
| KR20160129871A | 2016-11-09 | |||
| KR20140057706A | 2014-05-14 | |||
| US20020144984A1 | 2002-10-10 |
Attorney, Agent or Firm:
NAM, Choong Woo (KR)
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