When it comes to casting, there are primarily two popular methods. Pressure casting, which uses gas or air pressure to help facilitate the flow of material into the casting and gravity fed casting uses the natural force of gravity to help the material flow where it needs to. Castings are all around you and are not as hard to make as you would think.
The gravity fed casting method can be broken down into primarily three steps. First, the heated mold is coated with a releasing agent that will help the final product come out of the mold at the end. It also helps cool the mold after the previous part was added. After that, the molten metal is poured into the mold and nature takes its course. Once the molten metal has spread to where it needs to in the mold and the part has sufficiently cooled, it is removed from the mold and the process is repeated until the order is filled.
Gravity fed casting has a lot of benefits. For starters, this method has a much smoother cast surface finish compared to sand casting. Because of that, it requires less machining and thus should lower the cost of your project. Gravity fed casting also allows you to create thinner walls and has a much faster production time compared to other casting methods. The process is very repeatable and offers good dimensional accuracy too.
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