High Precision Castings And Forgings Complex Shape Excellent Surface Quality

High Precision, Complex Shape, Excellent Surface Quality Castings And Forgings

1. Investment casting, also known as lost wax casting, wax casting or precision investment casting, is a casting process for manufacturing complex shapes and high-precision parts. The process typically includes the following steps:

(1) Mold manufacturing: First make molds according to product design requirements. Molds can be made of metal materials (such as aluminum alloy, steel, etc.) or refractory materials (such as gypsum, ceramics, etc.). Molds are used to make wax molds.

(2) Wax mold injection mold: melted wax material is injected into the mold to fill the mold cavity and form a wax mold similar to the final product.

(3) Wax mold assembly: a number of wax molds are assembled together to form a complete mold assembly, including feeding system, pouring system, etc.

(4) Vacuum dewaxing: the wax mold is placed in the vacuum dewaxing equipment, and the wax material in the wax mold is melted and evaporated by heating and vacuuming, so that the internal cavity of the wax mold becomes a cavity.

(5) Smelting metal: smelting appropriate metal alloys, usually using electric arc furnaces, induction furnaces or argon arc furnaces and other equipment for smelting.

(6) Casting injection: the preheated mold assembly is placed in the casting equipment, and the molten metal is injected into the mold cavity to fill the entire internal cavity of the wax mold.

(7) Cooling curing: After the metal is cooled and cured, the mold assembly is removed from the casting equipment.

(8) Mold crushing: the cooling solidified metal parts are separated from the mold, and the mold is often broken by mechanical or chemical methods to obtain the final casting.

(9) Finishing processing: finishing, removing residual material, deburring and other processing processes on the casting to obtain the final product that meets the requirements.

Investment casting process is suitable for the manufacture of complex, high-precision, high-quality parts, commonly used in aerospace, aviation engines, automobiles, medical equipment, electronics and other fields. It enables the production of parts with complex shapes, small structures and precise dimensions.

2. Investment casting has the following main advantages:

(1) Complex shape: Investment casting can manufacture very complex shapes and structures, including internal cavities, thin-walled structures, internal and external threads, etc. Investment casting enables a higher degree of freedom and design flexibility than traditional casting processes.

(2) High precision: investment casting can obtain very high dimensional accuracy and surface quality, and usually can achieve high linear tolerances and surface finish requirements. This is due to the precision of the wax mold and the low thermal shrinkage and almost no porosity during the investment casting process.

(3) Excellent material properties: investment casting can choose a variety of metal alloys, including high temperature alloys, corrosion resistant alloys and high strength alloys. This allows investment cast parts to have excellent mechanical properties, wear resistance, corrosion resistance and high temperature properties.

(4) No processing: investment casting can directly obtain parts close to the final shape and size, reducing subsequent machining processes and material losses. This helps to reduce production costs and improve production efficiency.

(5) Mass production: Investment casting is suitable for mass production and can produce a large number of the same or similar parts in a relatively short time. This makes investment casting more economical and expandable in industrial production.

Overall, investment casting is a casting process suitable for complex shapes, high precision requirements and excellent material properties. It provides more design freedom, can meet the needs of different industries for high-quality parts, and has significant advantages in improving production efficiency and reducing costs.

High Precision, Complex Shape, Excellent Surface Quality Castings And Forgings

High Precision, Complex Shape, Excellent Surface Quality Castings And Forgings

3. Table examples of common parameters of die casting products:

High Precision, Complex Shape, Excellent Surface Quality Casting And Forgings

High Precision, Complex Shape, Excellent Surface Quality Castings And Forgings