Coining Operation In Sheet Metal

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 operation in sheet metal.

Coining also can reduce the metal thickness. 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. The operation is carried out mostly for the purpose of stiffening flat panels the operation is also sometimes used for making decoration items like number plates or name plates jewelry etc. What you need to know about coining coining is a metalworking operation used to create raised surfaces and imprints in metal.

Embossing operation with two dies. Embossing is an operation in which sheet metal is drawn to shallow depths with male and female matching dies. Coining fabrication is a basic type of bending in which the workpiece is stamped between the punch and die. Coining dies create the part s shape by squeezing the metal under extreme pressure.

It is a cut in a straight line across a strip sheet or bar. The term coining comes from the idea that when it comes to money each metal coin is made exactly the same as the last despite being mass produced. Coining operation under. In this operation a sheet metal workpiece is placed or kept between two dies from one end.

And the punch is hit at the other end of the sheet producing a shearing effect. Both the punch tip and the punch actually penetrate into the metal past the neutral axis under a high amount of pressure. 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. Coins metal currency are created with the coining process.