Patent ID: 11945077
Assignee: TOKYO DIAMOND TOOLS MFG. CO., LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A synthetic grindstone for performing surface processing used for dry chemo-mechanical grinding (CMG) processing or without liquid or slurry, the synthetic grindstone comprising:
abrasive grains;
a binder made of a thermosetting resin material and holding the abrasive grains in a dispersed state; and
a filler including at least one of
a first filler having a larger average particle diameter than the abrasive grains,
a second filler having electrical conductivity, and
a third filler harder than a workpiece,

the filler being disposed in a state of being dispersed in the binder;
wherein:
an abrasive grain ratio (Vg) of the abrasive grains to a total composition of the synthetic grindstone is more than 0 vol % and 20 vol % or less,
a binder ratio (Vb) of the binder to the total composition of the synthetic grindstone is 5 vol % or more and 30 vol % or less,
the first filler is greater than 0 vol % and 40 vol % or less,
the second filler is greater than 0 vol % and 10 vol % or less, and
the third filler is greater than 0 vol % and 20 vol % or less.