New Technologies Help Manufacturing Drill Bits With PDC Inserts

Today, Volgaburmash owns high-capacity and the most up-to-date technical and technological base for implementing innovations into manufacturing drill bits with PDC inserts.

In the process of designing drill bits and cutter heads Unigraphics bundled software has been used which allows for the most precise production of a 3-D model, taking into account the imbalance of forces (to decrease downhole bit vibration), thus improving controllability and increasing general bit durability. The Unigraphics bundled software has also been employed to develop control programs for multipurpose machining units, which in its turn allows for complying with all the required geometrical parameters of a drill bit and a cutter head.

Manufacturing diamond bits at Volgaburmash is performed with the help of up-to-date high-precision equipment. To manufacture diamond drilling equipment the best numerically controlled machine tools (Masturn, SPU) are employed, as well as high-precision multipurpose machining units.

New types of PDC inserts are used in drill bits and cutter heads, which have increased diamond layer thickness. Recently, a new and highly effective product has been used to protect drill bit surfaces exposed to the most wear-and-tear and which contains a mixture of carbides and nickel-based powder.

For more reliable protection a heterogeneous mixture of metal powders of dust-like matrix components and tungsten-carbide is additionally applied by flame plating (penetrating drill bit [cutter head] surfaces).

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