1. Structure description of sand casting coupling parts Based on the above reasons, this topic adds the working condition mechanical property analysis of parts to the sand casting process design, and puts this part before the specific sand casting process design, hoping to analyze the weak areas of parts,...
When liquid metal is poured into the mold, it will produce volume shrinkage during cooling and solidification. This shrinkage may lead to defects in the last solidified part of the axle housing – shrinkage cavity or porosity. Common casting alloys with large volume shrinkage, such as cast steel, malleable...
The casting system of sand casting axle housing is simulated and analyzed by using ProCAST simulation software. The solidification sequence and shrinkage cavity position of each part of the axle housing are determined according to the change of temperature field. By adding riser for feeding, the “sequential solidification” is...
As a key part of tractor, the main contents of sand casting axle housing are as follows: firstly, the structural manufacturability of sand casting tractor axle housing is analyzed, the reasonable process parameters are set, so as to determine the gating system, and the influence of different gating systems...
Shrinkage cavity in sand casting is a common casting defect, which is basically a volume loss defect. According to the causes, it can be divided into the following types: hot joint shrinkage, riser neck shrinkage, ingate shrinkage, axis dispersion shrinkage and concave corner shrinkage. Hot shrinkage cavity in sand...
For sand casting, in order to realize sand molding, mold taking, setting pouring riser and installing sand core, the sand mold should be composed of two or more parts. The division or assembly surface of the sand mold is called parting surface. Proper selection of parting surface in sand...
Since the 21st century, solidification numerical simulation technology has been developing continuously, and is now in the stage of optimization design. The numerical analysis of flow field and temperature field in the process of filling and solidification of axle housing has been relatively mature, and the simulation analysis technology...
The structural types of axle housing can be roughly divided into three types: disconnected type, integral type and combined type. This paper mainly studies the broken sand mold casting axle housing. The feature of the split axle housing is that the whole axle housing is divided into several parts...
In foreign countries, the analysis unit of “heat and mass flow analyzer” of Columbia University was first used in sand casting simulation technology. Prosenjit DAS and others used regression analysis and Taguchi method to optimize the process of ordinary sand mold pouring of aluminum alloy materials, and obtained the...
Sand mold aluminum alloy has been widely used in modern aviation, aircraft manufacturing, automobile, tractor, instrument, electric power and other industries because of its advantages of low density and high specific strength. However, aluminum alloy has many process difficulties in sand mold casting because of its light weight, small...