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When considering a casting process, this chart will help you determine which may be the best one for your application. This is only a starting point. To find out which is the BEST process for your product call
L A Aluminum Casting Company today 1-800-635-8720.
On this quick and easy to use chart, each issue is rated from 1 to 3 (3 being the best or most economical solution).
CASTING METHODS TO CONSIDER |
Issues to Address |
Permanent Mold |
Sand Casting |
Die Casting |
Investment |
Strength |
3 |
1 |
2 |
1 |
Surface Finish |
2 |
1 |
3 |
2.5 |
Complex Shapes |
2 |
1 |
3 |
3 |
Dimensional Accuracy |
2 |
1 |
3 |
2.5 |
Tooling or mold costs |
3 |
3 |
1 |
1 |
Cost per part |
3 |
2 |
3 |
1 |
Permanent Mold is often thought of as the process somewhere in between sand castings and die casting.
Sand Castings typically have higher costs associated with piece price, but lower tooling costs.
Die Casting tooling can be very expensive initially, but the piece price is low. Investment Casting can be best used if complex shapes are needed.
L A Aluminum utilizes the scale below to measure porosity in castings. The chart demonstrates controlled test samples that are generally comparable to manufactured castings. The actual porosity of a casting is dependent on outside variables such as, but not limited to: temperatures, mold surface finish, tool design, coring and riser capacity. On average, L A Aluminum permanent mold aluminum castings range from #1 and #2 in porosity.
The chart below is courtesy of American Foundry Society.
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