Coining Bending Sheet Metal

The slack between the wipe die and the punch plays an important role in getting a good result.

Coining bending sheet metal. In sheet metal fabrication parts are formed from metal sheets by punching cutting stamping and bending. The tonnage required by coining is 5 8 times higher than bottom bending. It does however very large tonnages compared to air bending. Coining sheet metal coining fabrication is a basic type of bending in which the workpiece is stamped between the punch and die.

It is important to make sure that the sheet is properly pushed onto the wipe die. The outside bend radius is in tension or being stretched. Coining is a very basic type of bending in which the work piece is stamped between the punch and die. The coining not only featured high accuracy but also very small ir of the workpiece.

Both the punch tip and the punch actually penetrate into the metal past the neutral axis under a high amount of pressure. Coining fabrication is a basic type of bending in which the workpiece is stamped between the punch and die. 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. Both the punch tip and the punch actually penetrate into the metal past the neutral axis under a high amount of pressure.

The material is put under enough pressure that the punch tip penetrates the material and it begins to flow into the die. Wipe bending or edge bending is another way to bend sheet metal edges. 3d cad files are created using a host of different cad packages and then converted into. As a result the wipe die also determines the bend s inner radius.

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. The inside radius of the bent metal is in compression or being squeezed together. Excellent accuracy and repeatability.