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Coated Series Saw Grit

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Usually pull-out ratio of coated grits can be reduced by 20-40% compared to that of uncoated ones. Moreover, most of crystals can be used to their full cutting potential. Right chart shows the proportion of diamond particles in two used segments made of coated and uncoated SMD25 40/50 during each stage of wear progression.
> High flexibility in selection of bond matrix
Coatings can protect diamond grits from aggressive bonding metal powders such as chromium, iron and tungsten. So tools manufacturer can enjoy more flexibility in selection of bond matrix.
> Improved cutting efficiency.
The most important factor effected cutting efficiency of tools is particle protrusion height in the bond matrix. Usually the greater protrusion height, the better cutting efficiency. After applying coatings to diamond, the protrusion height of particle increased by 30%. In most cases, 60/80 can be widely used in segments.
> Reduction of cost
On one hand, tool makers can use more economic metal powders in the bond matrix. Thus cost for bond reduced. On the other hand, smaller sizes grits and lower concentration can be chosen in tool manufacturing. So cost for diamond reduced.

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