Seems like a lot of the information is just good general design information - but the ribs and draft definitely seem to be a good thing to mention with castings
Shrinkage is impacted by geometry of the casting, cooling rate, pouring temperature, etc. So for all our mold designs, we use a simulation software that predicts shrinkage for that custom model. You can find a general shrinkage % for each aluminum alloy online, but know that the exact amount depends on design and foundry practices.
Curious to see your guy's info - just about to try and get into starting a small foundry & machine shop
Seems like a lot of the information is just good general design information - but the ribs and draft definitely seem to be a good thing to mention with castings
What is the value of the calculated shrinkage that you use for the mold design?
Shrinkage is impacted by geometry of the casting, cooling rate, pouring temperature, etc. So for all our mold designs, we use a simulation software that predicts shrinkage for that custom model.
You can find a general shrinkage % for each aluminum alloy online, but know that the exact amount depends on design and foundry practices.