Casting (metalworking)
Sand casting also allows most metals to be cast depending on the type of sand used for the molds. Sand casting requires a lead time of days, or even weeks sometimes, for production at high output rates (1–20 pieces/hrmold) and is unsurpassed for largepart production. Green (moist) sand, which is black in color, has almost no part weight limit, whereas dry sand has a practical part mass ...