中国铸造2007，Vol.4Issue(1)：5-9,5.
Study on interfacial heat transfer coefficient at metal/die interface during high pressure die casting process of AZ91D alloy
Study on interfacial heat transfer coefficient at metal/die interface during high pressure die casting process of AZ91D alloy
GUO Zhi-peng 1XIONG Shou-mei 1M. Murakami 2Y. Matsumoto 2S. Ikeda2
作者信息
- 1. Key Laboratory for Advanced Manufacturing by Materials Processing Technology, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
- 2. TOYO Machinery & Metal Co. Ltd, 674-0091 Japan
- 折叠
摘要
Abstract
The high pressure die casting (HPDC) process is one of the fastest growing and most efficient methods for the production of complex shape castings of magnesium and aluminum alloys in today's manufacturing industry.In this study, a high pressure die casting experiment using AZ91D magnesium alloy was conducted, and the temperature profiles inside the die were measured. By using a computer program based on solving the inverse heat problem, the metal/die interfacial heat transfer coefficient (IHTC) was calculated and studied. The results show that the IHTC between the metal and die increases right after the liquid metal is brought into the cavity by the plunger,and decreases as the solidification process of the liquid metal proceeds until the liquid metal is completely solidified,when the IHTC tends to be stable. The interfacial heat transfer coefficient shows different characteristics under different casting wall thicknesses and varies with the change of solidification behavior.关键词
high pressure die casting (HPDC)/magnesium alloy/interfacial heat transfer coefficient(IHTC)Key words
high pressure die casting (HPDC)/magnesium alloy/interfacial heat transfer coefficient(IHTC)分类
矿业与冶金引用本文复制引用
GUO Zhi-peng,XIONG Shou-mei,M. Murakami,Y. Matsumoto,S. Ikeda..Study on interfacial heat transfer coefficient at metal/die interface during high pressure die casting process of AZ91D alloy[J].中国铸造,2007,4(1):5-9,5.
