Analysis of investment casting process for turbine guide
According to the structure and size requirements of turbine guide and the characteristics of K438 alloy, vacuum investment casting is […]
According to the structure and size requirements of turbine guide and the characteristics of K438 alloy, vacuum investment casting is […]
The investment casting material K438 of turbine guide is a nickel-base superalloy widely used in aerospace and has excellent high-temperature
In the past 20 years, China has vigorously developed advanced aerospace manufacturing technology, and the design structure of parts is
1. Process Status Grid fin surface structure for CZ-2D and CZ-4B carrier rocketsAs shown in Figure 1, the rudder surface
The investment casting process is used to produce 100 rod-shaped titanium alloy castings in batches. The cast titanium alloy castings
The wax mold is made with medium-temperature wax, the gating system scheme is the optimized investment casting process scheme for
Through the simulation analysis of two investment casting process schemes, it is determined that the theoretical scheme of proportional solidification
Figure 1 shows the mold filling and solidification of the investment casting process plan. It can be seen from Figure
Figure 1 shows the mold filling and solidification of the investment casting process plan. From Figure 1, it can be
1 Advantages and limitations of the investment casting process 1.1 Pros 1) The dimensional accuracy of investment castings is high
The density of titanium alloy is small, and the static head of feeding in the mold during vacuum casting is
Titanium alloy has low density, high strength and good corrosion resistance, and is widely used in aerospace, naval and other
With the upgrading and continuous development of aerospace military equipment, civil aviation and commercial aerospace products, higher requirements are put
Metal Injection Molding (MIM) is a new powder metallurgy forming technology developed on the basis of plastic injection molding. It
Semisolid forming (SF) was proposed and founded by Professor Flemings of Massachusetts Institute of Technology and his scientific research team
Additive manufacturing technology has become one of the key supports to improve the technical level in the aerospace field. At
In recent years, a lot of new processes and technologies have emerged, which have formed a strong competition for investment
At present, the investment casting process of magnesium alloy in China mainly adopts dry sand molding process and gypsum molding
As a metal structural material, the density of magnesium alloy is only 1.74g/cm3, about 2/3 of aluminum and 2/5 of
Aluminum alloy investment castings have been widely used in aerospace engines, airframe structures and airborne equipment. The mechanical properties can
Up to now, the titanium alloy casting shell materials used and currently used in the titanium casting industry mainly include:
In the 1960s, the United States began to research the investment casting technology of titanium alloy, and successively completed the
The core technology of investment casting of superalloy is the optimization and preparation process of core and shell material system.
The British aero-engine giant Rolls · Royce has been focusing on the design and manufacturing technology of wall cooling and
In recent years, developed countries such as Europe, America and Japan have continuously carried out research on new processes, new
Integrated lightweight design, low-cost batch manufacturing and increasingly complex structural characteristics have become the unified trend of the development of
Permanent mold casting, also known as gravity die casting, is a casting method that involves the use of reusable molds
According to the 2022 data report of the (Manufacturing) Resabining Initiative, employment announcements for reshoring and foreign direct investment FDI
1. Surface quality and dimensional tolerance After cleaning, grinding and sandblasting, the impeller investment casting is free of micro-cracks, cold
Titanium alloys have high chemical activity in the molten state, and react with almost all oxide refractories. Therefore, in the