How to choose drawing dies
| 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) | 15°±5° | 15°±5° |
| Exit angle (φ) | 50°±20° | 50°±20° |
| Wire Material | Size(m m) | Area Reducti on(%) | Relief Angle (°) | Reduction Angle(°) | Bearing Length( %) | Reduction Angle(°) | Bearing Length( %) | Drawing Speed(m/ min) | TC | ND(m ulriple ) | PCD( mulripl e) | Application |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ND | ND | PCD | PCD | |||||||||
| Nonferrous | ||||||||||||
| Copper | 0.05-1.60 | 18-21 | 15 | 16-20 | 30-50 | 16-20 | 15-35 | 600-3300 | 1 | 40-100 | 200-500 | Electrical wire,Magnet wire |
| Copper | 1.60-7.60 | 20-35 | 15 | 16-25 | 15-35 | 600-2500 | 1 | 200-500 | Cable | |||
| Aluminum | 0.20-1.60 | 15-22 | 15 | 18-22 | 15-35 | 18-22 | 15-35 | 600-2000 | 1 | 30-80 | 100-200 | Cable,Magnet wire |
| Aluminum | 1.60-7.60 | 18-30 | 15 | 16-25 | 15-35 | 600-1500 | 1 | 100-200 | Cable | |||
| Aluminium Magnesium Alloy | 2.00-5.00 | 18-22 | 15 | 16-20 | 20-40 | 350-650 | 1 | 100-200 | TC cable,Braided wire | |||
| Tin-Plated Copper(electroplated) | 0.20-1.60 | 15-26 | 20 | 18-22 | 10-30 | 18-22 | 20-40 | 300-1000 | 1 | 10-40 | 100-200 | Electron ray tube,Light |
| Nickel 200 | 0.30-1.60 | 20-30 | 5 | 16-20 | 30-50 | 16-20 | 20-40 | 200-500 | 1 | 50-80 | 100-200 | Electronic instrument,Welding wire |
| Tungsten | 0.10-1.00 | 18-22 | 5 | 12-16 | 40-60 | 12-16 | 20-40 | 30-80 | 1 | 50-80 | 100-200 | Light,Instruments |
| Molybdenum | 0.10-1.00 | 18-22 | 5 | 10-16 | 40-60 | 12-16 | 20-40 | 30-80 | 1 | 10-30 | 50-80 | Cut wire |
| Ferrous | ||||||||||||
| Galvanized High Carbon Steel | 0.20-1.50 | 15-20 | 5 | 10-14 | 40-60 | 10-14 | 25-45 | 400-800 | 1 | 5-25 | 30-50 | Screen,Spring, Rope |
| Brass-Plated High Carbon Steel | 0.15-0.50 | 18-21 | 5 | 10-16 | 40-60 | 10-16 | 25-45 | 600-1000 | 1 | 5-20 | 10-30 | Tire Cords |
| Stainless Steel 316 | 0.15-1.60 | 18-21 | 5 | 10-14 | 40-60 | 10-14 | 25-45 | 200-600 | 1 | 4-8 | 10-20 | Mesh,Welding wire |
| Stainless Steel 302 | 0.15-1.60 | 18-21 | 5 | 10-14 | 40-60 | 10-14 | 25-45 | 200-600 | 1 | 2-4 | 8-15 | Spring,Welding wire |
| Ni-Cr-Fe Alloy 60:15:25 | 0.20-1.20 | 18-26 | 5 | 10-14 | 40-60 | 10-14 | 25-45 | 200-600 | 1 | 5-20 | 30-50 | High temperature electric furnaces |
| Low Carbon Steel | 0.20-1.60 | 18-21 | 5 | 8-14 | 40-60 | 8-14 | 25-45 | 400-800 | 1 | 5-20 | 30-70 | Building wire,Welding wire,Rope |
Hard wire product
Stainless steel wire, copper plated steel wire, galvanized steel wire, brass plated steel wire tungsten wire ,. etc
Soft wire product
Copper wire, aluminum wire, brass wire gold wire ,. etc