1. Manufacturing process All the technologies described above have different advantages. In this study, selective laser sintering technology is mainly […]
In the process of industrial manufacturing, investment casting can play an important role and can be used to make parts
In the process of sand casting, the performance of sand mold is one of the key factors affecting the final
After analyzing the defects, another improvement scheme is made, as shown in the figure. In the original scheme, the investment
Unreasonable pouring speed setting of investment casting will also produce insufficient pouring defects. In order to determine the reasonable pouring
Another investment casting thin-walled steel casting of ZHY casting was under poured in the trial production process, and the defects
In the casting defect scheme, the actual pouring temperature is 1560 ℃, and the actual average pouring speed is 0.38
The support size of a thin-walled steel casting is 400 mm × 310 mm × 270 mm, minimum wall thickness
Because the exhaust rib is not set in the original scheme, the simulation shows that the gas pressure in the
In recent years, with the application of advanced technologies such as high-performance (steel, non-ferrous alloy, etc.) materials, CAE analysis and
For many years, castings and forgings have been used as the product parts of ZHY Casting excavator. The new technology
Through the testing of the original investment casting prototype, it is found that there are shallow cracks at the intersection
The blank size of coupler parts is large, and the outline is 594mm × 370mm × 350mm, which is a
The coupler casting scheme adopting the gating system of scheme B is trial cast. The appearance of the trial cast
After solidification of investment casting in scheme a, there is shrinkage tendency, as shown in Fig. 1 (a), which is
In the solidification process of investment casting, the appearance, thin shoulder and thin-wall area of investment casting in scheme a
During the mold filling process of investment castings in gating system scheme a, the metal liquid flows from the sprue
Coupler is the connecting device of rail vehicles. It needs to ensure that the connected carriages at both ends do
The chemical composition of molten metal is detected in front of the furnace, and the results are shown in Table
Wax loss casting, now known as investment casting, is a casting process with little or no cutting. It is an
The casting simulation software ProCAST can predict the casting defects such as shrinkage porosity, shrinkage cavity and slag inclusion in
The pyramid lattice sandwich structure with core member length L = 32mm, core and panel angle w = 60 °
Pouring temperature, shell preheating temperature, investment casting pouring speed and other process parameters are very important to the molding quality
There are many reasons for casting defects. Gating system, pouring temperature and flow speed of molten liquid, casting size and
As a material near net shape technology, investment casting has the characteristics of complex casting structure, high dimensional accuracy, wide
In the process of investment casting, solidification refers to the process that high-temperature liquid metal changes from liquid to solid
As shown in Figure 1: after the investment casting pouring starts, the liquid fills the main sprue in about t
The mechanical parts of topology design must have good manufacturability before the products have practical value. The product of topological
In the process of investment casting, although the movement of metal pouring fluid is very complex, it will strictly follow
Rapid investment casting (RIC) is a production process of indirect additive manufacturing (I-am) metal parts formed by the combination of
