Tungsten Carbide Blanks: Types and Selection

Introduction

Tungsten carbide blanks are semi-finished products that tool makers machine into finished tools and dies. Understanding available blank types helps select the most cost-effective starting material.

Round Blanks

Round rods and tubes are the most common carbide blanks. They are used to make drills, punches, nozzles, and seal rings. Standard diameters are available from stock.

Rectangular Blanks

Plates, blocks, and square bars are used for stamping dies, wear plates, and custom tooling. They can be supplied ground or as-sintered depending on required tolerances.

Custom Preforms

Near-net-shape preforms reduce machining time and material waste. Custom pressed blanks match the final tool geometry, requiring only finish grinding.

Tolerance Options

Blanks can be as-sintered, semi-finished, or precision ground. As-sintered blanks include grinding allowance. Precision ground blanks reduce final machining to minimal operations.

Grade Availability

All standard grades are available in blank form. Custom grades can be produced for specific applications. Choosing the right grade for the intended tool is essential.

Conclusion

Selecting the right carbide blank type and tolerance reduces cost and lead time. Work with your supplier to identify the most efficient starting material for each tool.

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."