What is casting? Isn’t that the process of assigning roles for a play or a movie?
When used in the context of the manufacturing industry, the word refers to a process wherein liquid (molten) metal is poured into a mold containing a cavity in the shape of the desired finished product. After the material cools, the solidified part, known as a casting, is broken out of or ejected from the mold.
So what is sand casting, then? Sand casting is both the most widely used and oldest known casting process. It dates back to earlier than 1000 B.C., and although the technology has, of course, changed and improved, the basics remain the same as they were when ancient casters employed the process.
Note: sand is not the material being cast into a shape. That’s usually metal, but in sand casting, the molds are made from compressed or compacted sand. Sand is less expensive and more expendable than many other materials, and since the mold has to be destroyed in order to remove the casting, sand makes an economical choice for mold material. If you’re wondering what type of sand is used for casting, it’s usually silica sand mixed with a binder that helps the mold maintain its shape and hold up during the pouring process.
What is the process of sand casting? There actually are several steps to the process:
Now that you have a basic understanding of what sand casting is, you might be asking “What is sand casting used to make?”
Sand casting is good for making use of many different types of alloys. The most common materials used are aluminum alloys, brass alloys, and cast iron and steel. This process also is good for casting with metals such as nickel, steel, and titanium that have high melting temperatures.
As to the actual types of products sand casting can produce, here are several:
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The answer to ‘What is binder jetting?” is the same as that to “What is binder jetting 3D printing? Binder jetting, also known as binder jet
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