What is metal casting?

Metal casting is a technique of metal processing in which the molten metal is poured into a mold and left to set before it is removed to reveal a metal piece that can be completed by grinding, grinding and polishing before selling. This is one of the oldest metal processing techniques in the world, with evidence that pieces of castings occur in archaeological places around the world, sometimes show a very high level of skills. This technique continues to be used in a wide range of industries. The material must be strong enough and durable to withstand hot metal, and is sufficiently feasible to be carved or processed into a mold. Wood, limestone, plaster Paris and ceramics are used for molds and raw metal casting was made by pouring molten metal into molds made by excluding sand or clay. Repeatable forms for metal Casting Click together, holding the metal while setting and then falling apart.

Some forms are made by cutting the mold from wax, including a high level of detail, so the piece will be as finished as possible. The wax can be inserted into wet ceramics or plaster of the Paris bloc and then fired, so that the shape of the mold behind while the wax flows. This technique is known as "Lost Wax Casting" and is simple enough to teach in elementary school classes.

For metal cast people usually need access to the foundry, a device that was specially equipped for working with hot metals. The foundry includes a very hot furnace or fireplace known as Forge, which can be used to work with metal directly for blacksmithing or to melt metals for casting metals. Once the metal is molten, it can also be alloyed by other metals to bring the desired properties, and then carefully poured the into casting forms.

different metals require that they work with them a unique level of skills, as shown by the terms 'bronze era', 'iron time' and so on to different periods inHuman history. Some foundry are equipped to handle a number of metals, including metals that require a very high temperature for work, while others are coarser and designed to be used with softer metals that are easier to work. Metal casting can also be achieved by fine metals such as silver and gold to make jewelry.