Akademik Veri Yönetim Sistemi
Gumushane Universitesi Fen Bilimleri Dergisi, cilt.12, sa.1, ss.283-300, 2022 (Scopus, TRDizin)
In the pressure casting, the casting-mold interface heat transfer coefficient (IHTC) is a significant element affecting the solidification rate with the structural changes occurring in the mold and the part being cast. IHTC varies depending on many factors such as heat transfer between molten metal and mold, solidification rate, casting and mold temperatures, casting, and mold material. In this study, the time-dependent variety of IHTC of casting for a conventional cooling channel metal mold and an original cooling channel metal mold in the pressure casting process was numerically investigated. In the pressure casting process, IHTC for metal molds using Al6061 aluminum alloy as casting material was compared in terms of temperature distribution and heat transfer. The IHTC and temperatures between these molds and the molten metal were calculated in the analyzes made in the 0.5-10 s time interval. In the original cooling channel mold, the temperature drop was 1.33 times better than the conventional cooling channel mold. It has been calculated that the original cooling channel mold has a 2.23 times better heat transfer coefficient compared to the conventional cooling channel mold. As a result, it was observed that IHTC, temperature distribution and heat transfer were better in the original cooling channel mold.