Source International – Precision Sand Casting
CNC Machining Is One Of Our Core Capabilities
Precision Sand Casting From Source International
Precision Sand Casting has been used to form metal products for thousands of years. It is still widely used today for many different industries. Source has been providing Sand Casting products for golf cart industry, material handling industry and machine tool industries for the last 20 years. Grey Iron, Ductile Iron, Cast Steel, Cast Aluminum and Bronze are most commonly produced at our sand casting factories.
Precision Sand Casting Molds
The mold is mainly made of sand with certain percentage of clay mixed, so the initial set-up cost is relatively low, and the lead time of product development and first production launch is relatively short, comparing to other processes. A Pattern is required to put in sand to create a mold, after the pattern is removed a mold cavity is form and molten metal can then be filled into the cavity then a metal casting part is formed after it is removed from the sand mold. A core may be needed to create more special/complex feature (i.e. inner hole), this is created separated first (usually sand-molded) and then inserted into the casting box after removing the pattern.
SAND CAST MOLDS
CNC FLAT GRINDING
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HAND FILLING MOLDS
Finishing Process
Precision Sand Casting parts generally require secondary processes to remove the parting line, smooth roughness and achieve tight dimension tolerance. Sand Blasting/Shot Blasting, Machining (lathing, milling, etc.) are generally used. Sand Casting can produce large parts with weight of thousands of pounds. Surface Finish such as black oxide (for Iron/Steel Iron only), powder coating or wet painting could be applied to the casting part to achieve better corrosion resistance.
SAND CAST MOLDS