1) Currency production method 2) Making lots of money 3) Making money 4) Metal forming 
[metalworking] Coining is a form of precision stamping in which a workpiece is subjected to a sufficiently high stress to induce plastic flow on the surface of the material. A beneficial feature is that in some metals, the plastic flow reduces surface grain size, and work hardens the surface, while the material deeper in the part retains it...[mint] In minting, coining or coinage is the process of manufacturing coins using a kind of stamping which is now generically known in metalworking as `coining`. This process is different from cast coinage, and can be classified in hammered coinage or hammering and milled coinage or milling. A coin die is one of the two metallic pieces that...
• (p. pr. & vb. n.) of Coin
(from the article `metallurgy`) Two closed-die forging operations given special names are upsetting and coining. Coining takes its name from the final stage of forming metal coins, ...
manufacturing forged coins (classed as *treason)
Type: Term Pronunciation: koyn′ing Definitions: 1. A form of traditional treatment in Southeast Asia in which the edge of a coin is rubbed on the skin to effect a cure.
A process of impressing images or characters of the die and punch onto a plane metal surface.The process of applying necessary pressure to all or some portion of the surface of a forging to obtain closer tolerances or smoother surfaces or to eliminate draft. Coining can be done while forgings are hot or cold and is usually performed on surfaces parallel to the parting of the forging.
1) A process of straightening and sizing casting by die pressing, 2) a process for shaping metal.
A process of impressing images or characters of the die and punch onto a plane metal surface.