Abstract: This paper investigates the impeller investment casting process utilizing FDM 3D printing additive manufacturing technology and numerical simulation software. […]
Abstract: This paper focuses on the impeller casting process design and optimization using the AnyCasting software. The impeller, made of
1. Introduction Investment casting, also known as lost-wax casting, is a precision casting process that has been widely used for
Abstract:This research focuses on the casting process of a double-suction impeller made from C95820 aluminum bronze, a material characterized by
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
The wax pattern is made by 3D printing, and its linear shrinkage ratio is 1.0%~2.0%. Due to the long distance
Titanium alloy has the characteristics of low density, high specific strength, good corrosion resistance, low thermal conductivity, low linear expansion
Although adopting the horizontal casting process scheme can greatly reduce the production cost and improve the production efficiency, it is
1.Horizontal and vertical pouring process plan The horizontal and vertical pouring process scheme is shown in Figure 1 (a). The
1.Experimental materials QT450-12 is selected as the impeller material, and the overall dimension of the casting is 1450mm × 850
The impeller is the core component of the fan. It is assembled on the cylinder block to do work through
Mix gypsum and water in a ratio of 100:45, stir thoroughly until all bubbles in the gypsum slurry are exhausted,
1. Design of pouring system scheme Based on the design principles of component structure and investment casting gating system, three
Investment casting is a special type of casting in the field of casting and molding, usually used to make precision
ZHK400 vacuum consumable electrode arc shelling furnace is used for melting. The consumable electrode uses the secondary ingot bar produced
The impeller in question is made of ZTC4 titanium alloy, and its chemical composition should meet the requirements of Cast
The material grade of titanium alloy fan impeller produced by a factory is ZTC4, with a diameter of 1.3m. It
The core pulling molding sand casting technology commonly used in the production of cast impeller and the assembly and welding
According to the technical requirements, the mechanical properties test mainly includes hardness and tensile properties. 1. Hardness test After solution
a) Metallographic observation of casting state Etchant: aqua regia solution Magnification: 100X The as cast structure of zg1crl8ni9ti is shown
Adjustment of scanning speed: when adjusting the baseline with 1:1, the method is the same as above. Turn the [coarse
Turn the [coarse depth adjustment] knob to 250mm. Adjustment of scanning speed: align the longitudinal wave straight head with the
The chemical composition inspection methods of impeller castings include chemical analysis and spectral analysis. Chemical analysis has high precision and
In order to improve the mechanical properties of zg1cr18ni9ti stainless steel impeller investment casting sand casting, reduce segregation and improve
a. Gas cutting process parameters The gas cutting equipment of impeller investment casting sand casting pouring and riser adopts g01-300
Due to the low plasticity and work hardening of investment casting sand casting stainless steel impeller, it is difficult to
Because it is a composite mold of molten model shell and sodium silicate sand mold, the sand dropping process of
The process of pouring the liquid metal of impeller sand mold into the mold is called pouring. The purpose of
When the mold shell of impeller investment casting sand casting part and the sand mold of wheel hub and spoke
