(1) Based on the calculation module of AnyCasting, the material thermal property model and parameters of 7075 aluminum alloy wheel shaped squeeze casting were set, and the process parameters and boundary conditions were set according to the experimental data; the wheel shaped part was modeled, and the pre-processing of...
In the process of casting, there are many factors that affect the heat transfer coefficient of the casting mold interface: (1) Parameters related to casting properties, such as casting geometry, casting material, pouring temperature and solidification direction, etc. The heat transfer coefficient of casting die interface of Al Si...
In the process of squeeze casting experiment, the material of the casting is aluminum alloy and magnesium alloy. The shape and size of the casting and the installation of the measuring unit are shown in Figure 1. Among them, point a is the center position of the top surface...
The process of filling and solidification of 7075 aluminum alloy wheel parts in squeeze casting was simulated by AnyCasting software. The effects of filling speed, melt temperature and mold preheating temperature on the parts were analyzed. The causes of defects were analyzed, and the corresponding process improvement measures were...
Denis et al. Systematically studied the interface heat transfer behavior between aluminum alloy and mold shell in investment casting process, and studied the influence of various parameter errors on the calculation results of interface heat transfer coefficient. Shao Heng et al. Measured the temperature change of the mold shell...
With the solidification process, the interface pressure gradually decreases to zero at some positions. When the interface pressure is reduced to zero, it can not affect the interface heat transfer of squeeze casting die. At this time, solidification shrinkage becomes the main factor affecting the interface heat transfer. Therefore,...
In addition to the research on the interface heat transfer between casting and mold (die) in sand mold, metal mold, directional solidification, investment casting, die casting and other casting processes, there are also many researches on the interface heat transfer in thin strip continuous casting, twin roll casting and...
The heat transfer coefficient model of squeeze casting interface is not affected by various experimental conditions theoretically. However, in the part of micro heat transfer analysis, the coefficient function is difficult to be obtained by theoretical analysis, and can only be obtained by fitting the experimental data. The relationship...
Trovant et al. Found that the peak value of the heat transfer coefficient of the casting die interface appears when the liquid metal on the surface of the casting begins to solidify, that is, when the surface temperature of the casting drops to the liquidus, the heat transfer coefficient...
As the conformal surface moves down under certain pressure and contacts with the rigid surface, the interface spacing decreases. Some bumps contact with the rigid surface to form a real contact area, and some do not contact with the rigid surface to form a non-contact area, as shown in...