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Good Reasons Why Impregnated Diamond Core Bits Are More Beneficial

The impregnated diamond core bits have quickly become the most popularly used particularly in the industry of mining and exploration. The benefits provided by the impregnated diamond core bits over other cutting media are listed below:
a. A Wide variety of applications.
b. The simple crown geometry incorporated in their design means they are less likely to suffer in-hole damage when compared to other types of bits. For this reason, the impregnated diamond core bits can easily endure banded or changing geological formations.
c. The multi-layered arrangement of the cutter provides better bit life than other types of bits. This makes them perfectly suited for drilling hard, consolidated but non-abrasive formations.

The construction of the impregnated diamond core bits is designed in such a way that they have a sintered-powdered crown fused to the shank or the steel body. The powdered metallic crown comprises of 2 layers: the matrix and the backing layers. The matrix layer cuts through rock while the backing layer joins the matrix to the body. It additionally offers protection for the gauge diameter from hard materials.

The cutter used in impregnated diamond core bits is made of sythetic diamond powders. This material offers a distinct benefit when compared to natural diamond used to produce surface-set diamond core bits considering the material is engineered thereby making it have measurable and controlled physical attributes particularly with regard to aspects of crystal geometry and crystal friability.

The 'matrix' layer has uniformly distributed diamond crystals embedded using a powdered-metal bond. The sizes of the grits as well as the concentration of artificial diamond crystals combined with the toughness of the bound metal materials suspended all characterize the matrix design.

Diamond-bit.com has a wide variety of impregnated matrices and matrix layer bonds ranging from hard, soft, and ductile to the abrasion-resistant types. In essence, a hard and abrasion resistant matrix, for instance is a perfect mix for drilling an unconsolidated formation that is soft and abrasive. A soft and ductile matrix on the other hand is best suited for drilling extremely hard but non-abrasive consolidated formation. The whole idea involves matching the hardness of the bit matrix to the hardness of the formation as this enables the metallic bond used in the 'matrix' layer to erode and wear out at a rate that is controllable during standard drilling operations. The controlled erosion of the matrix eventually exposes new sharp layers of synthetic diamonds until the entire layer of the crown is completely consumed.

The 'backing' layer in contrast does not have diamond evenly distributed throughout the volume. This particular layer is made of powdered-metal bond material. This is a good type of bond that boasts of highly impressive wear resistance. The exposed exterior as well as the interior gauge diameter surface of the layer is lined with tungsten-carbide pads and natural mined 'kicker' grade diamond. These materials are essential as they assist maintain the gauge diameters in the entire lifetime of the core bit. There is an additional alternative known as optional setting where synthetic materials are replaced with 'kicker' grade diamond. This option is best suited for projects where possible contamination arising as a result of natural-diamond is unacceptable.