The blade mainly consists of “abrasive grains” and “bond.”
Bond has the role of holding the abrasive grains, which are
the cutting edge for processing.
A difference of bond type greatly influences the processing
results.
02: Types of Bond
There are mainly four types of bond: resin, metal, vitrified, and electroplated (electroformed).
Fig. 3: Types of Bond
Abrasive
grains
Bond
Diamond abrasive grains are not adhered to other
substances chemically. The bond just mechanically holds the
abrasive grains. Therefore, the strength of the bond
influences the retaining strength (retaining ability).
Normally, the retaining ability of resin is the weakest, and the
strength then becomes stronger in the order of vitrified bond,
metal bond, and electroplate