研削砥石の目なおし切れ刃に関する研究

抄録

Microstructure and the distributions of cutting edges on the grinding wheel dressed by diamond, crush-roller, and the other grinding wheel are investigated.
The results are as follows;
(1) when dressed by diamond and crush-roller, almost of the top surface of cutting edges are formed of shellyenevenness, but dressed by grinding wheel, they are formed of flat surface like worn surface.
(2) when dressed by diamond, about 7090 per cent of grains remain on the working surface, so that cutting edge spacing becomes about 2 mm for a grinding wheel of A46. But, dressed by crush roller, many grains fall off, and the spacing becomes larger.