For the shrinkage porosity defect, it is opened at the defect position, as shown in the figure. It is found that the shrinkage porosity defects are distributed on the side far away from the cold iron in the thickness direction, and the depth is about 12mm. Due to the...
When the pressure difference is enough (35kpa), the influence of chill thickness and casting thickness on defect formation is discussed. Firstly, simulation is carried out, and the results are shown in Fig. 1. The simulation results show that when the holding pressure is 35 kPa, when the casting thickness...
The research adopts the flat plate structure, the gap gating system and the low pressure pouring. The design of plate test piece and gating system is shown in Fig. 1a. In Figure 1b, six plates (1-6) are arranged in sequence, which are divided into gating and riser system and...
Lightweight design of aerospace components is an important research direction in this field. Reducing the mass of aerospace components can not only reduce the launch cost of the vehicle, but also improve the maneuverability of the vehicle. The density of aluminum alloy is about 2.7g/cm3, with high specific strength...