Title:
METHOD FOR REPAIRING ULTRA-THIN STRUCTURE BY MEANS OF ADDITIVE MANUFACTURING
Document Type and Number:
WIPO Patent Application WO/2022/179205
Kind Code:
A1
Abstract:
The present invention relates to a method for repairing an ultra-thin structure by means of additive manufacturing. The method comprises the following steps: removing a damaged region of an ultra-thin structure by means of machining; acquiring a three-dimensional model of a region to be repaired of the ultra-thin structure; processing the three-dimensional model of the region to be repaired; constructing a powder carrying device on the periphery of the bottom of the region to be repaired, and allowing powder in the powder carrying device to be filled until flush with or tangent to the surface of the bottom of the region to be repaired; melting, sintering or curing the powder in the powder carrying device around the outer contour of the ultra-thin structure by means of a high-energy beam or an auxiliary heating device, and combining the powder with the outer contour of the ultra-thin structure to form an outer contour thickened structure so as to form a flexible fixture; and repairing the region to be repaired by means of additive manufacturing technology according to a planned path obtained from the model processing. The present invention has the following beneficial technical effect: an ultra-thin structure can be repaired without requiring an extra-small-spot high-energy beam apparatus or a thickened fixture.
Inventors:
JIAO ZONGGE (CN)
FU JUN (CN)
FU XIN (CN)
LEI LIMING (CN)
YAN XUE (CN)
FU JUN (CN)
FU XIN (CN)
LEI LIMING (CN)
YAN XUE (CN)
Application Number:
PCT/CN2021/131426
Publication Date:
September 01, 2022
Filing Date:
November 18, 2021
Export Citation:
Assignee:
AECC SHANGHAI COMMERCIAL AIRCRAFT ENGINE MFG CO LTD (CN)
AECC COMMERCIAL AIRCRAFT ENGINE CO LTD (CN)
AECC COMMERCIAL AIRCRAFT ENGINE CO LTD (CN)
International Classes:
B22F3/105; B22F7/08; B22F10/60; B23P6/00; B33Y40/00
Foreign References:
| CN112548106A | 2021-03-26 | |||
| CN112077310A | 2020-12-15 | |||
| CN104588649A | 2015-05-06 | |||
| CN112045186A | 2020-12-08 | |||
| CN110893464A | 2020-03-20 | |||
| CN112195468A | 2021-01-08 | |||
| CN110328848A | 2019-10-15 | |||
| US20160069184A1 | 2016-03-10 | |||
| CN103624259A | 2014-03-12 | |||
| CN109551081A | 2019-04-02 | |||
| CN108372298A | 2018-08-07 | |||
| CN110202158A | 2019-09-06 |
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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