Coining Process In Sheet Metal

And a brilliant surface finish.

Coining process in sheet metal.

Coining dies create the part s shape by squeezing the metal under extreme pressure. Metal coining is often a finishing process for manufactured products. Stamping is the process of placing flat sheet metal in either blank or coil form into a stamping press where a tool and die surface forms the metal into a net shape. For instance if you want to get a 45 degree angle you need a punch and a die with the exact same angle.

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. It can produce sharp crisp corners. Coining in bending gives similarly precise results. A simple round metal slug is placed into the die and forced to flow into a given shape by compressing it see figure 3.

During the coining process the material is put under enough pressure that the punch tip penetrates the material at the bottom of the bend and it begins to flow into the die. 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 its toughness and ductility. The term comes from the initial use of the process. The coins that you have in your pocket are a classic example of items made by coining.

Metal rolling metal extrusion metal drawing sheet metal powder processes metal coining metal coining is a forging process by which very fine and intricate details can be created on the surface of a work piece. Coins metal currency are created with the coining process. The metal is given the die s exact shape by applying great tonnage. Coining is a cold forming process where certain surface forms are produced with low material displacement.

Coining also can reduce the metal thickness. Coining may be used to control surface quality and detail on parts. Coining is a process in which the metal is compressed or squeezed into the desired shape or profile. Sheet metal coining process is explained in this video to demonstrate each step of how the product is manufactured in the metalworking industry.

Coining derives it name from coins as they have to be identical to make fake money distinguishable from the real one.