한국주조공학회지 (Journal of Korea Foundry Society)
- 제13권3호
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- Pages.268-275
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- 1993
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- 1598-706X(pISSN)
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- 2288-8381(eISSN)
자동차용 피스톤 주물의 3차원 응고해석
Three Dimensional Solidification Analysis in Automotive Cast Piston
- 김지준 (연세대학교 금속공학과) ;
- 김진수 (연세대학교 금속공학과) ;
-
류관호
(동양피스톤) ;
-
최정길
(생산기술연구원) ;
- 이진형 (한국과학기술원) ;
-
홍준표
(연세대학교 금속공학과)
- Kim, Ji-Joon (Dept. of Metallurgical Eng., Yonsei University) ;
- Kim, Jin-Soo (Dept. of Metallurgical Eng., Yonsei University) ;
-
Ryu, Gwan-Ho
(Dong Yang Piston Co. Ltd.) ;
-
Choi, Jeong-Kil
(Korea Academy of Industrial Technology) ;
- Lee, Zin-Hyoung (KAIST) ;
-
Hong, Chun-Pyo
(Dept. of Metallurgical Eng., Yonsei University)
- 발행 : 1993.06.20
초록
In gravity die casting, die cooling systems are frequently employed with water cooling to remove the heat of the solidifying metal. Thermal modeling is an important technique in mold design for improving the productivity of the process. Computer simulation system which consists of pre-processor, main solidification simulator and post-processor has been developed for three dimensional solidification analysis of cyclic gravity die casting. The pre-processor is used for mesh generation in a PC system. The modified finite difference method is adopted for the main solidification simulation algorithm during all the casting cycles. The post-processor graphically presents the simulation results. Several experiments in automotive cast piston were carried out. The temperature variations in casting and mold with time are measured experimentally, and the results are compared with calculation results. The effects of cycle number on solidification pattern are also studied. Several experimental results for the prediction of shrinkage defects are compared with calculated results.
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