Prepare the sand mold: Mix the sand and binder, make the mold, and prepare the core if necessary.
Smelting metal: Heating metal to a molten state.
Pouring: Pour molten metal into a sand mold.
Cooling: The metal cools and solidifies in the mold.
Take out the casting: disassemble the sand mold and take out the casting.
Cleaning and dressing: remove sand and burrs and dress castings.
Inspection and Testing: Check the quality and dimensions of castings.