The creation of jewellery has been around far longer than we can imagine. The process involved, however, has changed over time with the introduction of newer technologies. In most cases, the intricacy of the design and the kind of metal and stone involved are what determine just how thorough the process should be.
JewelCast Ltd shares more information on the subject of casting.
The Burnout Cycle
The burnout cycle is generally the most basic process in the lost wax jewellery casting. It involves the connecting the wax models to each other in order to form a treelike set-up. This allows the gold or whatever kind of metal ore is being used, to flow through the tree with very little resistance. Once done, it is suspended inside a metal flask that has plaster slurry. This is then subjected to the negative atmosphere in order to remove the bubbles.
Centrifugal Jewellery Casting
As the name suggests, centrifugal casting involves the pouring of the mould and spinning it along a vertical arm. The machine used in this process is typically inside a tub or drum in order to contain the hot metal within. The same process is sometimes also used in the glass industry in what is known as “spinning”.
Vacuum Casting
The process involved in a vacuum casting is quite similar to centrifugal jewellery casting in that the metal ore is forced into a mould. The difference lies in the fact that centrifugal casting makes use of centrifugal force while vacuum casting makes use of atmospheric pressure. Vacuum casting also makes use of a flask loaded into a sleeve within a chamber.
Precious Metal Casting
In this process, the metal ore is poured into the mould in order to take on the mould’s shape. This is typically used in creating intricate ornaments. It involves a number of key steps, starting with the creation of the image and the moulding of the rubber that would be used in order to create the desired object.
These are few of the techniques used in producing jewellery. Hopefully, learning more about the process satisfies your curiosity and makes you appreciate the jewellery you own even more.