Coining Process In Sheet Metal

The metal is given the die s exact shape by applying great tonnage.

Coining process in sheet metal.

Sheet metal coining process is explained in this video to demonstrate each step of how the product is manufactured in the metalworking industry. Coining is a process in which the metal is compressed or squeezed into the desired shape or profile. It can produce sharp crisp corners. And a brilliant surface finish.

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. Coining may be used to control surface quality and detail on parts. 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. Coining dies create the part s shape by squeezing the metal under extreme pressure.

The term comes from the initial use of the process. A simple round metal slug is placed into the die and forced to flow into a given shape by compressing it see figure 3. Coining is a cold forming process where certain surface forms are produced with low material displacement. 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.

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 its toughness and ductility. Coining in bending gives similarly precise results. Stamping includes a variety of sheet metal forming manufacturing processes such as punching using a machine press or stamping press blanking embossing bending flanging and coining.

Coining derives it name from coins as they have to be identical to make fake money distinguishable from the real one. Coining also can reduce the metal thickness. Metal coining is often a finishing process for manufactured products. Because the sheet metal flows during the process of coining the bend radius formed by coining is always equal to that of the punch tip.

The coins that you have in your pocket are a classic example of items made by coining.