which of the following qualifies as a precision casting process_sheet metal stamping suppliers

4. Surface Finish With appropriate sand selection and mold design, sand casting can produce components with satisfactory surface finishes. For applications where aesthetics matter, sand casting can produce parts that require only minimal post-casting finishing.

2. Cooling Time The cooling phase is essential for ensuring that the part solidifies adequately before ejection. Cooling time can be estimated using the thickness of the part and the thermal conductivity of the material. A common approximation for cooling time (\(t_{cool}\)) is given by