What are the types of wire drawing machine molds?

What are the types of wire drawing machine molds?

The drawing machine mold can be roughly divided into the following four types:

1. Steel molds-steel molds are sufficient when pulling soft metals (such as gold and silver). There can be multiple holes with different diameters on the steel molds.
2. Carbide models-drawn steel wire (steel wire) generally adopts carbide die (Tungsten carbide nib), the typical structure of this die is a cylindrical (or slightly tapered) carbide die core It is embedded in a round steel case, and there are bell radius, entrance angel, approach angle, bearing and Back relief.

                                                                                                                        Steel model                                                                                                                                                                                      

                                         Carbide model                                                                         Polycrystalline mold     

Steel wire mold

3. Steel wire molds-drawing non-ferrous metal wire, such as copper and aluminum, also uses wire drawing mold similar to steel wire mold, the shape of inner hole is somewhat different.
4. Polycrystalline molds-polycrystalline molds (artificial diamonds) can be used for drawing thin wires, as well as drawing molds for natural diamonds.