A diamond cutting segment is the functional part of a metal-bonded diamond tool, such as a diamond blade, grinding cup wheel, core drill bit, or gang saw blade. These segments are made of small-size diamonds and metal bond materials like Cu, Sn, Fe, Ag, Co, Ni, WC, Mo, and graphite powders. The diamonds are mixed with the bond materials, then loaded into molds and formed through processes like hot pressing, cold pressing, sintering, and arc grinding.
The segments have a working layer with diamond grains for cutting or grinding, and a transition layer without diamonds that connects the working layer to the tool's body. This design ensures proper bonding and allows for the exposure of new sharp diamonds as the tool wears. Diamond cutting segments come in various forms, such as convex, layered sandwich, concave, L-shaped, step-shaped, segmented, and side-slotted, to enhance cutting efficiency, sawdust discharge, cooling, and lubrication.
