Coining Sheet Metal

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

Coining sheet metal.

Sheet metal coining marking stamping applications overview clinching eclinching riveting joining fastener insertion assembling punching coining pressing reference projects. Metal coining is often a finishing process for manufactured products. And a brilliant surface finish. One disadvantage is that it takes a great deal of force to coin metal.

Coining in bending gives similarly precise results. Special coining presses or knuckle presses are often used. The metal is given the die s exact shape by applying great tonnage. 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. A simple round metal slug is placed into the die and forced to flow into a given shape by compressing it see figure 3. For instance if you want to get a 45 degree angle you need a punch and a die with the exact same angle. We provide a range of metal processing services including tube and steel bending for los angeles california and surrounding areas.

Coining also can reduce the metal thickness. Both the punch tip and the punch actually penetrate into the metal past the neutral axis under a high amount of pressure. Coining may be used to control surface quality and detail on parts. This is a flashless precision forging.

Coins metal currency are created with the coining process. Metal coining is a forging process by which very fine and intricate details can be created on the surface of a work piece. 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. In coining the sheet metal is more than just bent it is actually thinned by the impact of the punch and die as it is compressed between them along the bending surfaces fig.

Coining has several advantages and disadvantages. Hansen steel is an expert in metal forming tube bending cutting and fabrication for various markets throughout california. Because coining uses compression to form the part tension failure is unlikely. Coining fabrication is a basic type of bending in which the workpiece is stamped between the punch and die.