Gravity Die Casting of Motorcycle Components

Starting from the mathematical model supplied by the customer we carried out a four step analysis:

1. First we carried out a preliminary simulation of the solidification process in order to deduce the parameters to be used as guidelines for the design of the gating and feeding system.  The temperature distribution during the solidification phase was studied and the results provided the information needed to evaluate any massive zone and the computation of the corresponding thermal modules.
2. Next we carried out a steady state simulation where the temperature and velocity of the filling phase were monitored, using the gating system and mold parts which were designed taking into account the deductions made from the preliminary simulation. We obtained information regarding the potential presence of cold shots, the effects of turbulence and entrapped air and the time it takes to solidify, and as a result made a number of modifications both to the casting geometry as well as the process parameters to improve the final quality of the cast.
3. A further simulation was carried out to verify the changes made to the design and a general improvement of the critical areas established in the first simulation was observed.
4. All of the data from the above steps were then used as input to produce the physical mold. The resulting mold was put through the first casting. The results from the simulation were then compared to those obtained from the first casting and the two sets of results were found to be consistent with each other.