As a saw blade is used, wear occurs.
A diamond particle wear progression, is shown, where the stages are:
The black and white photographs are from a scanning electron microscope (SEM).
A complete cycle of diamond wear can be classified as shown, where the progression of wear is top to bottom.
|Wear flat & microfracture||⬇︎|
Analysing worn saw blade segments allows comparisons to be made, for example saw blades on various granites (hard) and sandstone (abrasive).
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Note that SMT has the expertise to advise on this type of analysis.
This wear progression can be compared to that of grinding grit.
Diamond for resin bond tools has a microchipping structure which ensures a degree of friability.
The wear progression of this type of diamond is shown:
Large wear flat:
decreased free cutting
Multiple contact points:
increased free cutting