· Técnicas de simulación avanzadas ·
Jürgen Bast / Abdulkader Kadauw
Technical University Bergakademie Freiberg, Germany.66th World Foundry Congress
Clay-bonded mould sand is widely used in the foundry industry due to its
environmental and financial advantages. Sand compaction plays an important role
for the quality of the mould and therefore for the quality of the casting. The
determination of optimal compaction parameters is often carried out by trial-and-
error-method, which is expensive and time consuming. To improve this situation,
the process of compaction is modelled here by several different 3D mathematical
models and calculated using the finite element method. For the simulation of the squeeze process software is currently being developed to spatially model various compaction parameters. A comparison of first results with experimental data
shows good agreement. The distribution of density in the mould was measured by computer tomography methods and graphically enhanced pictures for the first time provide insight into the spatial distribution of stress, strain and the density of
moulding material.
