Earticle

초록

영어

This study proposes an optimal heat sink fin design for robot actuator housings under high-pressure die-casting (HPDC) constraints. Three fin geometries — straight, wave, and pin types — were evaluated using steady-state thermal analysis based on Newton's Law of Cooling. Wave-type fins achieved greater heat dissipation area than straight-type fins at equal thickness, enabling approximately 0.4 mm thinner fins and 9.4 g weight reduction under equal-area conditions. To further refine the wave geometry under manufacturability constraints, a Box-Behnken design with 26 cases was conducted across two fin-count groups (n=5, n=6). Multiple regression analysis identified fin thickness, fin count, and wavelength as factors with statistically meaningful effects on filling temperature, while fin count was the dominant factor governing thermal performance (=−2.83 °C, p<0.001). The results indicate that geometry-only optimization is insufficient to secure mass-production margin within current process conditions, and a combined adjustment of process parameters (melt superheat, gate area, injection velocity) is required.

목차

Abstract
1. 서론
2. 해석 조건 및 방법
2.1 기하학적 모델링
2.2 다이캐스팅 충진 해석 조건
2.3 격자 수렴성 검증
2.4 충진 임계 두께 규명
3. 형상 최적화
3.1 열해석 조건 및 방법
3.2 방열 해석 결과 분석
3.3 Wave 형상 최적화 실험계획법
3.4 Wave 형상 최적화 결과 분석
4. 결론
후기
References

키워드

저자

• 장윤석 [ Jang Yun Seok | Graduate School of Mechanical Engineering, Kongju National University ]
• 신동석 [ Shin Dong Seok | Graduate School of Mechanical Engineering, Kongju National University ]
• 전의식 [ Jeon Euy Sik | Member, Division of Mechanical & Automotive Engineering, Kongju National University ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국기계항공기술학회지(구 한국기계기술학회지) [Journal of the Korean Society of Mechanical and Aviation Technology ]

• 간기

  격월간

• pISSN

  1229-604X

• eISSN

  2508-3805

• 수록기간

  1999~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 550 DDC 620