An Application of Trapped-Air Analysis to Large Complex High-Pressure Magnesium Casting

Prindiville, J ; Lee, S ; Gokhale, A

Lawrence Livermore National Laboratory

关键词: Heat Transfer;    Casting;    Magnesium;    Shrinkage;    36 Materials Science;   

DOI  :  10.2172/15014382
RP-ID  :  UCRL-TR-205163
RP-ID  :  W-7405-ENG-48
RP-ID  :  15014382

美国|英语

来源: UNT Digital Library

【 摘 要 】

The usual method for simulating die-castings consists of a solidification analysis of the casting process - a computer calculation of heat transfer between the casting and the die components. The use of cyclic simulations, coupled with the geometric accuracy of the finite element method, has advanced this procedure to the point where it is routinely used for reliable prediction of shrinkage defects in die-castings. Filling analysis is also routinely used to get a glimpse of cavity filling and ensures that overflows are at their most effective location. When coupled with heat transfer, a filling analysis is also very effective in demonstrating the effects of heat loss in the fluid and how it consequentially can negatively affect filling.