Study On Effect Of Mechanical Vibration And Pressure On Aluminum Alloy Via Lost Foam Casting Organization And Property

The application of aluminum alloy in lost foam casting technology had obtained wide-spread attention in this industry. But lost foam casting still existed some parts that seriously affected the comprehensive performance of casting. Putting vibration and pressure at the process of filling and solidification in lost foam casting could effectively improve the mechanical properties: the vibration broke dendrites and it improved the strength of casting, the pressure increased the density of the casting solidification, thus it improved the refinement of the castings. So in this paper, the vibration and pressure on the properties of ZL104 in lost foam casting with the parallel test method were studied.In the case of without pressure, a series of vibration parameters was calculated by referencing to the relevant literature, the effect of vibration on aluminum alloy solidification and filling process was designed, and the influence of vibration on hydrogen in aluminum liquid was studied, the microstructure of castings was refined by vibration test, at the same time the filling capacity of molten metal was increased by using vibration method.Aluminum alloy in the casting foundry production needed low temperature compared to cast iron and cast steel, so its filling ability was poor, and it was easy to cause the cold shut, misrun and other casting defects. The pressurized manner was needed to solve these problems, and the production cost was reduced.In view of the influence of mechanical vibration and pressure casting, the changes and properties of aluminum casting with the action of mechanical vibration and pressure were systematically studied, the parameters from the experimental results was optimized, the vibration pressure composite field had became a mature application.This topic was from many domestic lost foam casting companies which hoped to confirm vibration and pressure parameters through the base theory study, and finally to ensure the casting comprehensive performance improvement.