極低速度研削加工における構成刃先の発現 極低速度研削加工の研究 （第２報）

Abstract

Analyses of the first report suggested that the unique phenomena in very low speed grinding process might be generated by the “built-up edges” in grinding machining. Explanation of the growth mechanism on the unique phenomena has been made clear in this report. Main conclusions are as follows: (1) In very low speed range of the unique phenomena the variations of abrasive grain temperature almost agree with the variations of cutting point temperature that the built-up edges are generating in the cutting process. (2) Micro-structure of the adhered material to grinding wheel surface shows the similar structure of the built-up edges in the cutting process. (3) The adhered material can generate the grinding chips after considering the comparison of hardness between the adhered material and grinding chips. The facts of above conclusions become clear that the “built-up edges” have been formed in very low speed grinding process.