TOP > Grinding Mechanism
The Grinding stones are composed of the grains that grind the workpieces,
and the bonds that hold the grains.
The grinding examples below occur by selecting the proper or improper
grinding stones.
Normal grinding
The grains penetrate into the workpieces, and grind with chips.
While building up chips, the bond wears moderately,
and sharp new grains are produced.
Under normal grinding conditions self sharpening occurs in use.
Grain falling off
The grains fall off before grinding the workpieces
due to a lack of bond's strength to hold grains.
Solution
Select a harder bond that holds the grains better.
Chip build-up
The grains are covered by a build-up of chips,
so grinding stones do not grind.
Under the situation, self sharpening does not occur.
Solution
Remove the build-up of chips by dressing.
Select a softer bond that does not hold grains tightly
to improve self sharpening.
Grain flatten
The grains that wear and become dull do not break away,
because the bond's strength to hold grains is too strong.
So the grains do not penetrate into the workpiece.
Solution
Select a softer bond that does not hold grains tightly
to improve self sharpening.
