Carbide Thread Mills vs Taps: Which to Choose

Introduction

Threading internal holes can be done with taps or thread mills. Both use carbide today, but each method has advantages depending on the application.

Tapping

Taps cut threads in one operation. They are fast and efficient for standard hole sizes in production. Carbide taps handle hard materials and abrasive workpieces better than HSS taps.

Thread Milling

Thread mills use helical interpolation to cut threads. They are more flexible, as one tool can cut various diameters and pitches. They also produce better chip control and are safer in tough materials.

When to Tap

Use taps for standard thread sizes in production, especially when machines have rigid tapping capability. Taps are faster and cheaper for high-volume standard threads.

When to Thread Mill

Use thread mills for large threads, difficult materials, blind holes, or when flexibility is needed. Thread milling reduces tool inventory and improves reliability in hard materials.

Tool Life

Carbide taps and thread mills both last far longer than HSS tools. The choice depends on the specific operation, machine capability, and production requirements.

Conclusion

Both carbide taps and thread mills have their place. Tapping is efficient for standard production; thread milling offers flexibility and reliability for challenging threading operations.

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."