The Diamond Segments

Diamond segment structure and composition is also a critical element to the success of edge. Segments are a mixture of different diamond grits and specially formulated metal powders. This mixture is then loaded into a mould and pressed under varying pressures dependent on its intended application. The segment is then heated to a temperature of around 800°c to form the desired product that comes in a variety of sizes and shapes dependent upon their purpose and application. The segment is made wider than the steel core to which it is to be attached. This difference in dimension allows the diamond blade to cut freely without binding the core against the application when it is in the cut. Clearance helps to remove the residue and debris from the cut and thus stops the core blank from wearing prematurely which would result in diamond blade failure.

Edge also attaches deep draft protection segments to blades that may encounter abrasive applications to also help in the removal of the abrasive slurry from the cut. This also eliminates any undercutting of the core. The part of the segment that is to be attached to the core is manufactured without diamonds and this is usually called "freeback". This transitional area is to be adhered to the core, usually by laser welding. Any impurities or foreign bodies within this weld area would jeopardise the stability of this area and could finally result in segment loss.