%0 Journal Article
%T Study on Numerical Simulation of Mold Filling and Solidification Processes under Pressure Conditions
%A Shoumei XIONG
%A Baicheng LIU
%A Liangrong JIA
%A Xinghuo WEN
%A <br>ShoumeiXIONG
%A BaichengLIU
%J 材料科学技术学报
%D 2002
%I 
%X The mold filling and solidification simulation for the high pressure die casting (HPDC) and low pressure die casting (LPDC) processes were studied. A mathematical model considering the turbulent flow and heat transfer phenomenon during the HPDC process has been established and parallel computation technique was used for the mold filling simulation of the process. The laminar flow characteristics of the LPDC process were studied and a simplified model for the mold filling process of wheel castings has been developed. For the solidification simulation under pressure conditions, the cyclic characteristics and the complicated boundary conditions were considered and techniques to improve the computational efficiency are discussed. A new criterion for predicting shrinkage porosity of Al alloy under low pressure condition has been developed in the solidification simulation process.
%K Mold filling
%K Solidification
%K Numerical simulation
%K High pressure die casting
%K Low pressure die casting<br>高压熔模铸造
%K 低压熔模铸造
%K 凝固
%K 数值模拟
%K 模型装料
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=34FEF98F5BF1CAB736E8F015C46ED181&yid=C3ACC247184A22C1&vid=13553B2D12F347E8&iid=94C357A881DFC066&sid=09AA1448D1EAF9C1&eid=1FF3CD54EFC256A1&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=0