폴리카보네이트 사출성형에 따른 금형과 사출품에서 표면거칠기의 재현성 예측 = Reproducibility Prediction of Surface Roughness in Mold and Injected Parts through Polycarbonate Injection Molding

다국어 초록 (Multilingual Abstract)

In this study, we evaluated the surface roughness of mold and injected parts manufactured by polycarbonate (PC) injection molding. The mold surface was polished to produce six differentiated roughnesses with 12 areas using stones (#800, #1200), sandpapers (#800, #1200), and diamond compounds (#8000, #14000). Injected parts were created using 20mm/s injection speed, 80 bar holding pressure for 5 seconds, and 70℃ cooling water. Injected parts surface roughness (Sa) was measured randomly in 10 of 30 using an interferometer (NewView8000, zygo, USA). In the same way, mold surface was measured randomly 10 times on 12 polished areas. Surface roughness of molds and injected parts were compared, and a regression equation to predict mold surface roughness was proposed for specific injection molding parameters.

목차 (Table of Contents)

• ABSTRACT
• 1. 서론
• 2. 사출성형 실험장치 및 실험방법
• 3. 실험결과 및 고찰
• 4. 결론
• REFERENCES

참고문헌 (Reference)

1 강민규, "히트 스프레더를 적용한 150W급 고출력 투광등용 LED 광학엔진 연구" 한국조명.전기설비학회 31 (31): 26-34, 2017

2 권대규, "회전하는 알루미늄 환봉의 미세입자 분사가공시 통계적 방법에 의한 분사조건에 대한 연구" 한국기계가공학회 16 (16): 135-141, 2017

3 우상원, "플라스틱 마이크로 채널 기판 사출성형 시 보압의 영향" 한국생산제조학회 25 (25): 224-229, 2016

4 우정우, "투명 사출품에서 성형조건에 따른 복굴절 및 잔류응력의 분석" 한국고분자학회 40 (40): 175-180, 2016

5 최계광, "자동차 LED 전조등 방열판 형상에 따른 융합 연구" 한국융합학회 8 (8): 199-204, 2017

6 정지영, "열전소자 적용을 위한 LED 엔진 모듈 설계와 특성 분석" 한국조명.전기설비학회 30 (30): 32-40, 2016

7 배명일, "기계구조용 탄소강(SM45C)의 단속절삭시 절삭력예측을 위한 회귀방정식 도출" 한국기계가공학회 15 (15): 40-45, 2016

8 Wu, T., "Zygo interferometer for the precious measurement of tiny refractive index change of two laser crystals" 89 : 196-199, 2017

9 Ratnam, Ch., "Process monitoring and effects of process parameters on responses in turn-milling operations based on SN ratio and ANOVA" 94 : 221-232, 2016

10 Saladino M. L., "Preparation and characterisation of Ce:YAG -polycarbonate composites for white LED" 664 : 726-731, 2016

11 Heng Wu, "Modular design of a high-efficiency LED headlamp system based on freeform reflectors" 72 : 79-85, 2015

12 "Knowledge Roughness (3D) parameter"

13 Kang, S. H., "Frictional sensitivity and effect of surface roughness in boss and rib test" 112 : 108-116, 2017

14 Ohtani, H., "Extensional Rheology: New Dimension of Characterizing Automotive Fluids" 01 (01): 4271-4281, 2017