In this article, we try to introduce the difference and comparison between the casting processes via a table. We mainly introduce the sand casting, investment casting, shell mold casting, permernant mold casting and die casting. Hope they help you when you choose the suitable casting process for your custom casting parts.
| Items | Sand Casting | Permernant Mold Casting | Die Casting | Investment Casting | Shell Mold Casting |
| Typical dimensional tolerances, inches | ± .010" | ± .010 | ± .001" | ± .010" | ± .005 |
| ± .030 | ± .050 | ± .015" | ± .020" | ± .015 | |
| Relative cost in quantity | Low | Low | Lowest | Highest | Medium high |
| Relative cost for small number | Lowest | High | Highest | Medium | Medium High |
| Permissible weight of casting | Umlimited | 100 lbs. | 75 lbs. | Ounces to 100 lbs. | Shell ozs. To 250 lbs. no-bake 1/2 lb. - tons |
| Thinnest section castable, inches | 1/10" | 1/8" | 1/32" | 1/16" | 1/10" |
| Relative surface finish | Fair to good | Good | Best | Very Good | Shell good |
| Relative ease of casting complex design | Fair to good | Fair | Good | Best | Good |
| Relative ease of changing design in production | Best | Poor | Poorest | Fair | Fair |
| Range of alloys tht can be cast | unlimited | Aluminium and copper base preferable | Aluminum base prepferable | Unlimted | Unlimited |
Post time: Jan-20-2021