一、砂轮的磨钝磨损过程在磨削过程中,由于砂轮和工件接触区域的机械、化学和热作用,砂轮工作表面状况不断发生变化。这种变化主要包括两个方面: 1、由于磨粒和工件的不断作用,其切削刃受到金属的反抗以及和金属的相互摩擦而逐渐钝化,另外,由于磨粒和工件材料之间的化学亲和作用使金属切屑粘附在磨粒表面,同 First, the wheel blunt wear process In the grinding process, due to the grinding wheel and the workpiece contact area of ​​mechanical, chemical and thermal effects, grinding wheel surface conditions continue to change. This change mainly consists of two aspects: 1, due to the abrasive particles and the continuous role of the workpiece, the cutting edge of the metal by the resistance and mutual friction with the metal and gradually passivation, in addition, the abrasive and the workpiece material between the chemical The affinity effect makes the metal chip adhere to the abrasive surface, same as