| Coining is a type of metalworking which involves | | | | Otherwise, a more common system used is the |
| precision stamping. The process consists of the | | | | hydraulic press. Coining needs to be done in high |
| work piece being made to undergo a high level of | | | | levels on tonnage presses, much more than what |
| stress which makes the plastic flow inside | | | | is needed in the stamping procedure. Coining is |
| sufficiently on to the metal’s surface. In | | | | basically a manufacturing process that creates |
| certain kinds of metals, the plastic flow system | | | | various parts for different industries. |
| works to lessen the grains sizes on the surface, | | | | A coin is created by striking the sides of the |
| sometimes, resulting in hardening of the work | | | | metal coin-like piece with two metallic pieces, one |
| surface, and the metal inside the work piece | | | | of which is a coin die. The die will have the |
| remains ductile and tougher. The coining procedure | | | | reverse image that is to be produced on the coin, |
| is used basically to create coins, money, badges | | | | therefore when it is pressed against the coin; it |
| for the police, and buttons for fire fighters, | | | | rights itself into the desired picture. Today’s |
| springs with precision energy, and accurate parts | | | | dies are able to produce many coins before they |
| for small sized polished surfaces. | | | | have to be replaced, since they are made out of |
| The coining process is an ancient process involving | | | | hardened steel. The Coining dies are mainly of 3 |
| a cold working system, which requires a large | | | | types – the ancient coining dies, the medieval |
| amount of strength to re make the work piece | | | | coining dies and the modern coining dies. |
| plastically. It needs to conform with a die as well. | | | | Many treasure-seekers and artefact collector |
| The coining process can be conducted by a | | | | have gone looking for ancient coining dies, as they |
| gear-driven system or even a mechanical press. | | | | are invaluable in today’s world. |