Examination to Machining Characteristics of Semi-Fixed Abrasive Plate during the Lapping Process

The most typical example of hard and brittle material is advanced ceramics, for its ultra-precision machining difficulty and wide applications, now it becomes a focus of attention. Semi-fixed abrasive plate (SFAP) is newly developed tool for machining advanced ceramics; As a result of SFAP abrasion, a gradual change takes place in the SFAP topography to influence on machining results and productivity. The paper shows experiment procedures to evaluate SFAP abrasion rate and workpiece material removal. The results of experiments are discussed and analyzed, it indicates that wet status of SFAP have great influences on the removal rate and SFAP abrasion. Compared with dry status of SFAP, wet status of SFAP can achieve higher processing efficiency.