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PDC or PCD drill bit & what is the difference


PDC OR PCD DRILL BIT ? WHAT’S THE DIFFERENCE ?
PDC drill bit means Polycrystalline Diamond Cutter core bit

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The earliest wells were water wells,shallow pits dug by hand in regions where water table approached the surface,usually with masonry or wooden walls lining the.
PDC are made by combining some layers of polycrystalline diamonds (PCD) with a layer of cemented carbide liner at high temperature and high pressure.
PDCs are among the most rigd of all diamond tool materials.

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PCD simply means Polycrystalline Diamond :
PCD are normally made by sintering many micro-size single diamond crystals at high temperature and high pressure.
PCD has good fracture toughness and good thermal stability, and is used in making geological drill bits.
PDC has the advantages of diamond’s high wear resistance with carbide’s good toughness.

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