Grinding wheel dressing, usually divided into two processes of shaping and dressing. Trace cutting shaping is grinding wheel  to achieve the desired geometric shape and accuracy, and the abrasive tip fine crushing, the formation of micro edge; Truing is the binding agent between the removal abrasive, so that abrasive wheel between the chip space, and abrasive grains projecting outside the binding agent, forming a cutting edge.
For multi-stomatal vitrified bond grinding wheel (including diamond and CBN grinding wheel), due to the combination of agent for osteoporosis, usually plastic and dressing at once; binder Dense wheel (such as resin, metal binding agent) , shaping and dressing respectively.