RISS 검색 - 학위논문 상세보기

다국어 초록 (Multilingual Abstract)

AM technology is a technology that irradiates a laser or an electric beam on one layer according to CAD data input by a user, and creates a three-dimensional shape by repeating this. AM technology can reduce cost, reduce weight, and produce objects in a shape that goes beyond the limitations of existing manufacturing methods through the lamination process. Because of the many advantages of AM technology, many studies have been conducted to apply it to the manufacturing of aircraft parts. However, various defects occurred in the AM process, and many studies were conducted to reduce these defects. The results were mainly verified through specimens. When these results are applied to actual aircraft parts of various shapes, there is a high possibility that unsuitable parts will be produced due to deformation of the shape even if the mechanical properties are satisfied.
In this paper, deformation during the AM fabrication process of actually aircraft parts was studied, and deformation control methods and results were presented to confirm suitability for aircraft part application. In order to check the suitability of the product to be applied to the aircraft, the inspection and test were implemented. Also, the mechanical properties were tested by fabricating a specimen using AlSi10Mg and Ti6Al4V powder materials. The suitability of aircraft application was reviewed by comparing the mechanical properties with aircraft manufacturers and similar materials.

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목차 (Table of Contents)

1. 서론 1
1.1 연구 배경 2
1.2 연구 필요성 9
1.3 연구 목적 12
1.4 논문 개요 14

1. 서론 1
1.1 연구 배경 2
1.2 연구 필요성 9
1.3 연구 목적 12
1.4 논문 개요 14
2. 문헌 조사 17
2.1 문헌 조사 배경 17
2.2 AM 공법 검토 17
2.3 DMLS 공정 검토 24
3. AM 적용 대상품 연구 33
3.1 AlSi10Mg 대상품 33
3.2 Ti6Al4V 대상품 48
3.3 Build parameters 검증을 위한 시편 제작 50
3.4 시편 시험 51
4. 대상품 제작 및 시험 78
4.1 AlSi10Mg 대상품 변형 개선 연구 78
4.2 Ti6Al4V 대상품 변형 개선 연구 86
4.3 Build model 분석 86
4.4 대상품 시험 92
5. 결론 99
5.1 연구 결과 개요 99
5.2 향후 연구 계획 103
REFERENCE 104
APPENDIX 시편 도면 111

참고문헌 (Reference)

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6 P. P. Dey, R. K. Shah, "Process parameter optimization of dmls process to produce AlSi10Mg components", 1240 012011, 2019

7 C. Sche, T. H. Becker, M. Beck, "Microstructure and mechanical properties of direct metal laser sintered Ti6Al4V", Vol 26(1), pp 1-10, 2015

8 Avik Sarker, Tobias Maconachie, Omar Faruque, Milan Brandt, Martin Leary, "Mechanical and thermal characterisation of AlSi10Mg SLM block support structures", 183 108138, 2019

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10 Juntong Xi, Xiangzhi Wei, Xianda Li, Ruiliang Feng, Lin Zhu, "Design of lightweight tree-shaped internal support structures for 3D printed shell models", 25/9 1552–1564, 2019