The more common method is to first make the electrode with the required blank (with very small margin or no margin), and then use the electrode to corrode the mold body to form a cavity. Then use the casting method to cast wax to obtain the original wax mold. Brush layer by layer with high-temperature-resistant liquid sand on the wax mold. After obtaining sufficient thickness, dry it, and then heat it to melt the wax mold inside to obtain a cavity consistent with the required blank. Then cast molten iron in the cavity, peel off the shell after solidification, you can get a precision-manufactured finished product!
Precision casting is also called investment casting. Compared with other casting methods and parts forming methods, investment casting has the following characteristics:
The dimensional accuracy of the casting is high, the surface roughness value is fine, the dimensional accuracy of the casting can reach 4-6, and the surface roughness can reach 0.4-3.2μm, which can greatly reduce the machining allowance of the casting, and realize no-surplus manufacturing and reduce production cost.
It can cast castings with complex shapes and difficult to process by other methods. The outline size of the castings is as small as a few millimeters to thousands of millimeters, the thickness of the thinnest is 0.5mm, and the smallest hole diameter is less than 1.0mm.
Alloy materials are not restricted: such as carbon steel, stainless steel, alloy steel, copper alloys, aluminum alloys, high-temperature alloys, titanium alloys, and precious metals can all be produced by precision casting. For alloy materials that are difficult to forge, weld and cut, it is even more important. Especially suitable for precision casting production.
High production flexibility, strong adaptability. It can be used for mass production, but also suitable for small batch or even single piece production.More about:Aluminum die casting parts Factory