Synthetic  Composite   Polycrystalline   Diamond
    The composite polycrystalline diamond is compact of a polycrystalline diamond layer and a tungsten carbide substrate.  The polycrystalline diamond layer possesses extremely high hardness and abrasion resistance, whereas the tungsten carbide substrate would greatly improve the toughness and weldability of the whole compact.  It is usually utilized to make petroleum and geology drilling bits, as well as machine tooling.
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Curve

Thermal Analysis 
Shape Dimensions (mm) Shape Dimensions (mm)
D L T S A L W S

Full round

 8 3.8~4 0.8 360° L

Square
8.5 3.8~4 0.8 360°
9 3.8~4 0.8 360° 6.5 0.7
9.5 3.8~4 0.8 360°
12 4.5 0.8 360°
13.3 3.3 0.5 360°
Half Round 8 3.8~4 0.8 180° W

L

Rectangle
8.5 3.8~4 0.8 180°
9 3.8~4 0.8 180° 6.5 3.1 0.7
9.5 3.8~4 0.8 180° 6.5 2 0.7
12 4.5 0.8 180°
13.3 3.3 0.5 90°
Segment 4.5 3.8~4 0.8 90°

S

Triangle

 6.0 0.5
6.3 3.8~4 0.8 90° 6.0 0.5
Special shape 5.5 7 3.8~4 0.8 4.5 0.5
4.5 0.5

　

　

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