Carbide Wire Drawing Dies: Sizing and Selection Guide

Introduction

Selecting the right wire drawing die is essential for efficient wire production. This guide covers die sizing, reduction ratios, and angle selection.

Die Bore Dimensions

The die bore determines the finished wire diameter. Dies are available in standard sizes with increments as small as 0.01 millimeters. Choose a bore that produces the exact wire diameter required.

Reduction Ratio

Each drawing pass should reduce the cross-sectional area by 15 to 30 percent. Too much reduction causes excessive die wear and wire breakage. Too little reduction wastes drawing passes.

Die Angles

The entry angle approaches 16 to 18 degrees, the bearing zone is straight, and the back relief angles outward. Proper angle design ensures smooth wire flow and uniform die wear.

Lubrication Zone

The die entry angle is designed to carry lubricant into the bearing zone. Proper lubrication is critical for die life and wire surface quality.

Conclusion

Correct die sizing and selection optimize wire drawing production. Consider reduction ratio, die angles, and lubrication requirements when choosing carbide drawing dies.

References

GB/T 7714: GUPTA R, SONG J. Powder metallurgy processing and mechanical properties of cemented tungsten carbide composites[J]. International Journal of Refractory Metals and Hard Materials, 2020, 91: 105246.

APA 7th: Gupta, R., & Song, J. (2020). Powder metallurgy processing and mechanical properties of cemented tungsten carbide composites.

MLA 9th: Gupta, R., and J. Song. "Powder Metallurgy Processing and Mechanical Properties of Cemented Tungsten Carbide Composites."