Shaped dies are used in both drawing and extrusion machines.
Since 1997, MN started to custom design a seried of dies to make the required shape and tolerance from original shape gradually.
· Blanks(Nibs) material
The shaped dies can be made with tool steels, tungsten carbide(TC) , polycrystalline diamond(PCD) , Synthetic Mono crystalline Diamond(SMCD) and Natural diamond(ND)
· Case material
Stainless steel and cold rolled steel.
· Typical Markets
Aluminum wire, copper wire, stainless steel wire, steel wire, spiral wire and Trolley wire
· Spiral steel wire dies
MN Dies can design and manufacture TC spiral dies for drawing spiral steel wire.
| Shaped Profile Die Specification | TC Shape Die | PCD Shape Die | SSCD/ND Shape Die |
| Sandard size range(1) | >=0.6mm | >=0.1mm | >=0.1mm |
| Standard tolerance(2) | +0/-0.015mm | +0/-0.015mm | +0/-0.015mm |
| Available angles | 8-28o | 8-28o | 8-28o |
| Standard angle tolerance | +-2o | +-2o | +-2o |
| Blank (nib) material | Tungsten Carbide(TC) | Polycrystalline Diamond(PCD) | Synthetic/Natural Single Crystal Diamond(SSCD/ND) |
| Virtually any Shpaes | Available | Available | Available |
| Blend and radius | depend on required shape | depend on required shape | depend on required shape |
(1).Measured diagonallly (2).Tighter toalerances are available an request
| Item | Soft wire product | Hard wire product |
| Bell angle (α) | 70°±20° | 60°±20° |
| Approach angle (β) | 35°±5° | 30°±5° |
| Reduction angle (γ) | 18°±2° | 12°±2° |
| Bearing length (D) | 20-50 | 40-60 |
| Back relief angle(θ) | 20-50 | 15°±5° |
| Exit angle (φ) | 50°±20° | 50°±20° |
For nonferrous metals wire, such as copper and aluminum, is best drawn with polycrystalline diamond dies (PCD) ,Not only maintain high wear resistance, but also get a good wire surface quality.
For steel wire, tungsten carbide dies is better, if need variety production,low cost,sample wire making or other applications.
