1. Current situation description and cause analysis For the cylinder block developed by ZHY casting in the early stage, there were batch defects of local sintering and broken core at the bottom center of both ends of the water jacket (as shown in Figure 1), which seriously affected the...
ProCAST software is used as sand mold casting simulation software to solve the interface heat transfer coefficient, but there are still some deviations in the setting of many physical parameters, which also has a certain impact on the simulation results. For example, the permeability of sand box and the...
According to the design of sand core, riser and gating system, the general assembly drawing and explosion drawing of sand mold are shown in the figure. According to the analysis of the explosion diagram, the sand core design needs to consider the factors such as core head positioning and...
The reasonable gating system, riser, pouring temperature, pouring speed and other boundary conditions are optimized by using the criteria of mold filling and solidification time, solid rate distribution with time and shrinkage porosity percentage of sand castings. The specific results are as follows: Through ugnx8 The three-dimensional model of...
Through the research, a complete process route of rapid sand mold casting is obtained. ① ugnx8 0 software to establish the cylinder head model; ② Using the rapid sand mold casting process CAD system based on light curing prototype developed by the laboratory to design the casting process of...
According to the analysis of sand casting process, the design of three gating systems is put forward. The influence of the design of different gating systems on the sand casting results of cylinder head is shown in the figure. The bottom injection method has the best stability and performance,...
According to the sand mold casting process CAD system developed by the laboratory, the casting process design is carried out. It is developed by using Pro / E as the platform, VC + + 2005, Microsoft Access2003 and function library Pro / Toolkit as tools, and using key technologies...
With the development of economy, China’s automobile industry has developed rapidly, but it is facing the problems of unreasonable industrial structure, low technical level and weak independent R & D ability. One of them is the lack of rapid manufacturing capacity. Rapid prototyping technology, using the principle of material...
Ugnx8 0 software to model the three-dimensional model of sand casting engine cylinder head. UG NX is a new generation digital product developed by Siemens PLM Software in the United States. The most widely used and fully relevant integrated CAD / CAM / CAE application suite in global enterprises....
The casting blank of automobile engine cylinder head produced by sand mold gravity casting is shown in Figure 2-1. ZL105 aluminum alloy is selected as the material of sand casting, and the overall dimension of sand casting is 426mm × 200mm × 131mm, the volume is 4581cm3, and the...