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I've always found these machine fascinating, never seen one in person though. I am surprised the molds are aluminum instead of steel. Typically aluminum molds
by hahamrfunnyguy 9y ago
I've always found these machine fascinating, never seen one in person though. I am surprised the molds are aluminum instead of steel. Typically aluminum molds are considered suitable for smaller runs only. If they do 100 parts a day that's 36.5K cycles per year.
- anfractuosity 9y agoWhy is aluminium considered suitable for smaller runs only out of interest?
- mcphage 9y agoAluminum is softer than steel, so the mold wears out quicker—the models lose details.
- RyJones 9y agoand it's much cheaper to work. If you're only doing a couple thousand moldings, you don't care as much about mold life
- anfractuosity 9y agoAh cheers that makes sense. One thing I was wondering would they use stainless steel for moulds, to prevent them rusting?
- TylerE 9y agoNope, "real" molds are made out of tool steel. Corrosion isn't really a problem since machines are typically stored indoors.
- JKCalhoun 9y agoThe casting material is so soft, I suspect the molds are barely perturbed. Might the thermal properties of aluminum make it a better choice for these quick turnaround castings? Quick to heat, quick to cool.