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What Are the Advantages of Precision Casting?

Understanding of Precision Casting

Precision casting is one of the casting methods that is different from the traditional casting process. It is a special casting method that can obtain relatively accurate shape and higher casting accuracy.

Precision casting refers to the general process of obtaining accurate size castings. Compared with traditional sand casting process, precision casting can obtain more accurate casting size and better surface finish. It includes: investment casting, ceramic mold casting, metal mold casting, die casting, and lost foam casting.

The more common method is to first design and make a mold (with little or no allowance) according to the product requirements, and then cast wax using the casting method to obtain the original wax mold. Repeat coating and polishing on the wax mold, harden the shell and dry it. Then melt the wax inside the wax mold to remove the wax and obtain the cavity. Bake the shell to obtain sufficient strength and permeability for the metal material required for precision casting. After de-shell, clean the sand to obtain high-precision finished products. Heat treatment and cold processing can be carried out according to product requirements. Below we will introduce the advantages of precision casting.

Learn about the advantages of precision casting

  • Precision casting has a wide range of applications and is not limited by the size, thickness, and complexity of the casting. The production process is convenient.

  • Precision casting can use a variety of materials, including steel, iron, aluminum, copper, gold, silver, etc., and their alloys can also be cast. Compared with ordinary forging methods, it consumes less.

  • The casting has a certain dimensional accuracy, small machining allowance, and saves machining time and metal materials.

  • Low cost, good overall economic benefits, low energy consumption, and less consumables.

  • Precision casting can cast high-temperature alloy castings, such as jet engine blades, streamlined contours, and cooling chambers, which are difficult to form by mechanical processing technology. However, using precision casting technology can not only realize mass production and ensure casting consistency, but also avoid residual tool marks after processing.

  • Precision casting has high dimensional accuracy and surface finish, which can reduce machining workload. Parts with low demand only need a small amount of machining allowance. Even some castings can be processed without mechanical processing, leaving only polishing and polishing allowances. It can be seen that precision casting can save a lot of machine tools and machining time, and greatly save metal raw materials.

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