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▲
I
NSTRUCTION
M
ANUAL
3601 E. 34th St. Tucson, AZ 85713 USA Tel. +1
-
520
-
882
-
6598 Fax +1
-
520
-
882
-
6599 email: [email protected] Web: https://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
GIGA
-
S Vibratory Polisher
19
7.4 Polycrystalline Diamond Abrasives
Polycrystalline diamond is a synthetic diamond which provides better surface
finishes and higher removal rates than monocrystalline diamond. The following
are advantages of a polycrystalline diamond over a monocrystalline diamond:
•
Higher removal rates (self
-
sharpening abrasive)
•
Very uniform surface finish
•
Improved uniformity of particle size distribution
•
Harder / tougher particles
•
Blocky shaped particles
•
Hexagonal microcrystallites (equally hard in all directions)
•
Extremely rough surface (more cutting points)
•
Surface area is 300% greater than with a microcrystalline diamond
•
No abrasion
-
resistant directionality (abrasion is independent of particle
orientation)
Diamond Size (
μ
m)
Color Code
0.10
Charcoal
0.25
Gray
0.50
White
1.0
Blue
3.0
Green
6.0
Yellow
9.0
Red
15
Brown
30
Orange
45
Purple
Polycrystalline Multifaceted Diamond
Monocrystalline Blocky Diamond