Wednesday, February 27, 2013
Simply put, the process of die casting creates various manufactured shapes by putting molten metal into different mould shapes. For the most part, the mould will consist of complementing pieces of hardened steel that will combine to create a hollow space into which the molten metal will be forced. In general, you're going to avoid any metals with iron when making a die casting; some of the most common materials are lead, aluminum, copper, and zinc. The kind of metal you ultimately select is going to determine whether you work with a hot or a cold chamber.
Owing to the cost of setting up a die casting system, you won't usually find this process used unless the results are very high volume. On the other hand, the cost of producing any item on already existing die cast systems will be quite low, since the process is so incredibly simple. If you are looking to cast items in a rapid way, then you'll do best to choose die casting over any of the other types of casting that are available. When the casting is completed, you can usually recognize it by a very smooth metal finish and a consistent shape. Just visit this website to learn more about die casting.
The two parts of the steel mould are going to be typically referred to as the ejector and cover half. The middle ground between the two is typically though of as a parting segment. On the cover half, you're going to find an area through with molten metal will pass. The shot hole or the sprue are the two most common names for this space. To allow the metal to flow between the two halves, the ejector half will also contain a space called a runner, which is lined with ejector pins. The interchangeable dies are going to be attached to the die casting machine through the use of a platen, which will not move during the process. The great thing about die casting is that the dual halves of the die are easily switched out for a different shape, which permits many permeations of shapes.
When the casting is completed, the final piece will easily slip from the cover piece and remain in the lower half. This is where the ejector pins come into play, as they will push the casting out of its position in the die. There will be small marks left on the die casting, which means you must account for them in the design. To know more about die casting and its importance, just click here.