The direction of development of precision and ultra precision machining

High precision and high precision machining and ultra precision machining can obtain surface quality and surface integrity is high, but at the expense of the processing efficiency is guaranteed.
To explore both the efficiency and accuracy of the processing method of ultra precision machining ball collar? Become the goal of researchers. Such as the birth of semi fixed abrasive machining, electrolysis magnetic grinding, magnetorheological abrasive flow machining compound machining method.