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Tungsten Carbide Stamping Dies
Application
At present, the majority of tungsten carbide stamping dies using WC-Co alloy . This tungsten carbide has high hardness, high melting point, stable, suitable for making the mold material. Because lubricity of WC is better than Co, and with high solubility at high temperatures; at normal temperature, WC solubility ratio of Co is small, so it can maintain a certain toughness. WC-Co cemented carbide is currently the most widely used, the largest output of carbide.Thanks to the combination of WC and Co properties,they have excellent performance
Tungsten carbide stamping dies mainly processing of bolts, nuts, steel wall nails, wood screws and rivets and other common parts in industrial production.Conventional bolt cold forming process can be divided into expected, upsetting head, accumulate, forming, gaining five steps. Stamping advantage are the high material utilization, metal consumption, high production efficiency, high degree of automation. In the course of the stamping dies working ,it had to bear a huge impact, unit pressure up 200MPa, and therefore requires a mold material with high hardness, high wear resistance, high impact strength and fatigue sufficient toughness.
Tungsten carbide Stamping dies material has the following characteristics
1. High wear resistance. Tungsten carbide stamping dies material high wear resistance, tensile modulus can be guaranteed long-term work in any degree of deformation, ensuring standard size unchanged.
2. Excellent in polishing. Carbide has a good polishing, can be processed into the die hole mirror light, ensuring high quality standard surface.
3. Adhesion to metal is small. In the tungsten carbide stamping process, ferrous metal material adhesion small carbide tooling materials, ensuring a high tungsten carbide stamping die life.
4. The friction coefficient and energy consumption is small.
5. High thermal conductivity. Since the thermal conductivity of the tungsten carbide die is high, heat generated during the stamping can quickly conducted away to improve the durability of the mold.
6. Good corrosion resistance.
Grade List
| Grade | ISO Code | Chemical Composition(%) | Physical Mechanical Properties (≥) | Application | ||||
| WC | Co | Density g/cm3 | Hardness(HRA) | T.R.S N/mm2 | ||||
| YG3 | K01 | 97 | 3 | 14.90 | 91.00 | 1180 | Suitable for finishing of cast iron,non-ferrous metals,alloys and non-metallic materials,and semi-finishing vehicles for intermittent cutting. | |
| YG6 | K10 | 94 | 6 | 15.10 | 92.00 | 1420 | Finishing of chilled hard alloy cast iron and heat resistant alloy steel and ordinary cast iron. | |
| YG6X | K20 | 94 | 6 | 15.10 | 91.00 | 1600 | Cast iron, non-ferrous metals and alloys, non-metallic materials, medium to cutting, semi-finishing and finishing. | |
| YG8 | K20-K30 | 92 | 8 | 14.90 | 90.00 | 1600 | Suitable for casting of cast iron, non-ferrous metals and their alloys and non-metallic materials, roughing of sections and rough cutting. | |
| YG10 | K40 | 90 | 10 | 14.70 | 89.00 | 1900 | Suitable for the production of drawing dies, wear parts and stamping parts and cores for hard alloy automatic presses. | |
| YG10X | K40 | 89 | 10 | 14.70 | 89.50 | 2200 | Suitable for small diameter micro drills, end mills, rotary boring tools, etc. | |
| YG15 | K30 | 85 | 15 | 14.70 | 87.00 | 2100 | Forging, perforating and stamping tools for steel bars and steel tubes with high compression ratios and working under large stresses. | |
| YG20 | K30 | 80 | 20 | 13.70 | 85.50 | 2500 | Stamping die, stamping watch parts, musical instrument spring piece. | |
| YG20C | K40 | 80 | 20 | 13.70 | 82.00 | 2200 | punching battery case, toothpaste skin mold, small size steel ball, screw, nut stamping die, hot rolling twist drill bit plate. | |
| YG30 | G60 | 70 | 30 | 12.80 | 82.00 | 2750 | Production of standard parts, bearings, tools and other industries for cold heading, cold punching, cold pressing die. | |
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