The development of direct molding technology has changed the cost structure of investment casting
As one of the earliest processing methods of mankind, investment casting has been more than 5,000 years old. Today, millions of investment castings are produced every year, in a variety of alloys, shapes and sizes.
The operation is simple: a wax mold of a desired investment casting is dug in the pottery and then coated with a layer of sand that is not easily melted, which forms a ceramic shell. The ceramic shell is then heated and the wax mold is melted, thus forming a new usable ceramic shell that can be used to make the mold by casting. The ceramic shell should be hardened by heating, and then the raw material of the molten mold can be cast in. Once the liquid form of the material has solidified, the ceramic shell can fall off and expose the new casting.
Investment casting has many advantages over other material manufacturing processes. It produces very good surface finishes and can handle the fabrication of very complex molds that cannot be handled by other manufacturing methods. Not only that, but investment castings can be used in almost all alloys that can be made by castable methods.
This is a view of the top and bottom angles of the gimbal, paying attention to the complex internal structure of the part.
As with the injection molding process, some tools are necessary to make the casting. The wax type is manufactured by a mold, which is generally called a wax mold, which is very similar to an injection mold. Not only that, but also in the same place as injection molding, the cost and time required for processing are limited. For small-scale work tasks, low-cost processing methods can be applied.Next page
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