A study on machining conditions on surface roughness in EPS End-milling

EPS 엔드밀 가공 시 표면 거칠기에 미치는 가공조건에 관한 연구

  • Seo, Keum-Hee (Korea Institute of Industrial Technology, Molds&Dies Technology R&D Group) ;
  • Son, Min-Kyu (Korea Institute of Industrial Technology, Molds&Dies Technology R&D Group) ;
  • Yoon, Gil-Sang (Korea Institute of Industrial Technology, Molds&Dies Technology R&D Group) ;
  • Ko, Young-Bae (Korea Institute of Industrial Technology, Molds&Dies Technology R&D Group)
  • 서금희 (한국생산기술연구원 금형기술그룹) ;
  • 손민규 (한국생산기술연구원 금형기술그룹) ;
  • 윤길상 (한국생산기술연구원 금형기술그룹) ;
  • 고영배 (한국생산기술연구원 금형기술그룹)
  • Received : 2017.07.05
  • Accepted : 2017.08.01
  • Published : 2017.08.01

Abstract

EPS used in lost foam casting elastic modulus is extremely low. So it is necessary to derive machining conditions for effective cutting. Therefore this study were analyzed end-milling machining conditions to affecting the surface roughness of EPS foam. The machining conditions were set to depth, feed, and RPM at 3-level. And 18experimental conditions were derived using mixed orthogonal array. The most important condition for surface roughness is RPM. In addition, RPM machining condition range test that can realize surface roughness less than $10{\mu}m$ was performed. he range of RPM conditions is more than 15,000. However the range of RPM conditions is a condition that is difficult to use in actual field. In the future variance analysis and experiments are needed to derive the range of machining conditions available.

Keywords

References

  1. 김한섭, 박규열 "발포 스티로폴의 절삭기구 및 특성", 한국공작기계학회 최계학술대회 논문집, pp. 158-163, 1998.
  2. 홍도관, 안찬우, 백황순, 최석창, 박일수 "실험계획법을 이용한 엔드밀 가공 시 최대가공온도와 표면조도에 미치는 가공조건에 관한 연구", 한국기계가공학회지, vol. 8, No. 3, pp. 46-53, 2009
  3. 조명무, 김상진, 박희상, 배명일 "마이크로 엔드밀 가공시 가공인자가 표면거칠기 향상에 미치는 영향", 한국생산제조시스템학회지, pp.71-76, 2008.
  4. P. Lim, and G. E. Yang "Optimization of Finish Cutting Condition of impeller with Five-Axis machine by Response Surface Method", Trans. KSME, Vol. 31A, No. 9, pp. 924-933. 2007.
  5. Y. Altintas, I. Yellowley "In-Process Detection of Tool Failure in Milling Using Force models", Trans. of ASME, J. of Eng. for Ind, Vol. 111, pp. 149-157, 1989.
  6. Hong, D. K., Kim, D. Y., and Ahn, C. W. "The Study on the Optimal Working Condition for Vibration, Surface Roughness and Cutting Temperature in End Milling", Trans. of KSNVE, Vol. 14, No. 12, pp. 1322-1329, 2004. https://doi.org/10.5050/KSNVN.2004.14.12.1322