CUTTING ELEMENT WITH IMPROVED POLYCRYSTALLINE MATERIAL TOUGHNESS AND METHOD FOR MAKING SAME

摘要

A cutting element having a cutting table made from sheet segments of commingled ultra hard material and binder. Each segment may be made from a finer or a coarser grade of ultra hard material or from different types of ultra hard material. The segments a re aligned side by side over a cutting face of the cutting element to form the cutting table. T he material grade and/or the material type of each segment may alternate across the cutting face.