Basic characteristics and basic types of drawing die

The center of all wire drawing dies has a certain shape of holes, round, square, octagonal or other special shapes. As the metal is pulled through the die hole, the size becomes smaller and even the shape changes.

Basic types 1. Steel molds are sufficient when pulling soft metals (such as gold and silver). There are many holes with different pore sizes on the steel mold.
2, cemented carbide mold - drawn steel wire (steel wire) generally uses Tungsten carbide nib, the typical structure of this mold is a cylindrical (or slightly tapered) carbide mold core close The ground is embedded in a circular steel case with a bell radius, an entrance angel, an artificial angle, a bearing and a bearing. Back relief.
3, steel wire mold - pull colored metal wire, such as copper, aluminum, also more similar to the wire die similar to the wire mold, the shape of the inner hole is somewhat different.
4, polycrystalline mold - the thin wire can be used to polycrystalline mold (artificial diamond), as well as the use of natural diamond wire drawing die.