· Técnicas de simulación avanzadas ·
S Oxley and P M Haigh
Castings Technology International
67th World Foundry Congress
A series of filling and solidification simulations have been carried out using
different simulation programs to evaluate the effectiveness of simulation
for precision castings.
A four casting geometry was designed to be a problematical system to
create a very poor filling pattern and with a feeding method which will
produce areas containing shrinkage defects. Results were determined
using six different commercially available software programs:
Thermophysical data sets for the aluminium LM25 alloy were used from
data obtained through the National Physical Laboratory in London. These
datasets have full traceability to measurement techniques and data
calculation methods.
The results are presented as snapshots at specific positions throughout
the simulations. Castings were also produced and inspected to assist with
the verification of the simulations carried out.
The paper reviews the results obtained.
