목차

차 례
1. 서론 ·················································································································· 1
1.1 연구 배경 ·············································································································· 1
1.1.1 규칙적 다공성 소재 ····················································································· 1
1.1.2 금속 3D 프린팅 제조 공정 ········································································ 2
1.1.3 금속 3D 프린팅 공정에 의한 규칙적 다공성 소재 ······························ 3
1.2 연구 목적 및 내용 ······························································································ 4
2. SLM 공정 기초 연구 ····················································································· 5
2.1 SLM 공정 조건 설계 ··························································································· 5
2.2 SLM 공정 조건에 따른 조형체 특성 분석 ····················································· 6
2.2.1 조형체의 상대밀도 ······················································································· 6
2.2.2 조형체의 경도 ······························································································· 7
2.2.3 조형체의 미세조직 ······················································································· 7
2.2.4 SLM 공정 조건 결정 ···················································································· 8
3. 타원 셀 허니컴 설계 및 해석 ···································································· 9
3.1 타원 셀 허니컴 단위셀 설계 ································································ 9
3.2 타원 셀 허니컴 유한요소해석 ···························································· 10
3.2.1 유동응력 ····································································································· 10
3.2.2 유한요소해석 조건 결정 ········································································· 11
3.2.2.1 요소밀도의 영향 ···················································································· 11
3.2.2.1 단위 셀 배열의 영향 ············································································ 11
3.3 설계변수에 따른 압축특성 해석 ···································································· 12
4. SLM 공정을 이용한 타원셀 허니컴 제작 및 특성평가 ····················· 14
4.1 SLM을 이용한 타원셀 허니컴 제작 ······························································ 14
4.2 타원 셀 허니컴 형상 비교 ·············································································· 14
4.3 타원 셀 허니컴 압축특성 평가 ······································································ 15
4.3.1 압축특성 평가 방법 ··················································································· 15
4.3.2 타원의 장·단축비 영향 ·············································································· 16
4.3.3 상대밀도의 영향 ························································································· 18
5. 결 론 ·············································································································· 20
참고문헌 ············································································································· 22
Abstract ·············································································································· 67