Precision casting is a casting method relative to traditional casting process. It can obtain relatively accurate shapes and high casting accuracy.
The more common practice is: first make an electrode for the required blank (very small or no margin can be left), and then use the electrode to corrode the mold body to form a cavity. Then cast wax by casting to obtain the original wax mold. Brush high-temperature resistant liquid sand on the wax mold layer by layer.
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