Abstract
The aim of this study is to decide the ideal infeed curve in plunge grinding. In the first report, the size generation process was analyzed quantitatively. In the second report, the effect of in-feed conditions on surface roughness was discussed. Therefore, in this report, taking note of variation process of wheel surface, one of the standards of in-feed conditions is made clear from the viewpoint of wheel wear and surface roughness. Then, the shape accuracy is analyzed theoretically, based on the mathematical model of the plunge grinding which was constructed in the first report. Next, the analyzing model of the work hardened layer, which is one of the most important evaluation functions of quality, is constructed. Finally from these results, evaluation functions of grinding are adapted, that is, total grinding time, size accuracy, shape accuracy, wheel wear, surface roughness and work hardened layer, and then the ideal in-feed curve which fulfills the requirements of high accuracy, efficiency and quality is decided.
