9-1/2 Inch PDC Steel Body Diamond Rock Drill Bit for Oil Water Well Manufacturers

Advantage of steel-body PDC bits

The strength and ductility of steel give steel-bit bodies high resistance to impact loading.
Steel bodies are considerably stronger than matrix bodies.

Because of steel material capabilities, complex bit profiles and hydraulic designs are possible and relatively easy to construct on a multi-axis, computer-numerically-controlled milling machine.

A beneficial feature of steel bits is that they can easily be rebuilt a number of times because worn or damaged cutters can be replaced rather easily.

This is a particular advantage for operators in low-cost drilling environments.

Development of PDC bits

Fortunately, both steels and matrix are rapidly evolving, and their limitations are diminishing.
As hard-facing materials improve, steel bits are becoming extremely well protected with materials that are highly resistant to abrasion and erosion.

At the same time, the structural and wear-resisting properties of matrix materials are also rapidly improving, and the range of economic applications suitable for both types is growing.

Today's matrix has little resemblance to that of even a few years ago.

Tensile strengths and impact resistance have increased by at least 33%, and cutter braze strength has increased by ≈80%. At the same time, geometries and the technology of supporting structures have improved, resulting in strong, productive matrix products.