The hole in the casting is slightly smaller. Do you need to modify the mold?

If the hole in the casting is slightly smaller, it is usually not necessary to modify the mold. This is because in the casting process, molten metal will flow into the casting through the holes in the mold, forming holes. If the hole is slightly smaller, molten metal can still flow in, but the hole will become smaller. Therefore, if the size of the hole changes slightly, the mold usually does not need to be modified. However, if the size of holes varies greatly, or the number of holes needs to be increased or decreased, the mold needs to be modified.

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