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Diamond cup grinding wheel. TYPE: Cold pressed, double row. DIAMETER: ø115mm. BORE/THREAD: ø22.23mm. MAX RPM: 10,400Application: The cup grinding wheel is used with an angle grinder to clean granite,. masonry, concrete and stone surfaces. A diamond blade grinds, rather than cuts through material. The blades typically. have segments which contain diamond crystals embedded throughout the segment for. grinding through very hard materials. What is a diamond blade?. A diamond blade is composed of a circular steel core and the diamond. impregnated segments. The segments are seperated by slots in the core. These. slots assist in cooling the blade during operation by allowing water (wet. cutting) or air (dry cutting) to flow between the segments. The segments or rims. are a mixture of diamond powder and metal powders. The diamonds are industrial. diamonds of different sizes and qualities depending on the material to be cut as. well a the blade type. How does a diamond blade work?. The individual diamond crystals exposed on the leading edge and the sides of. the segment or rim carry out the cutting. The operator pushes the rotating blade. into the material and the surface diamonds thus exposed mill a groove in the. material. When the blade mills the material, the latter exerts wear on the. blade. During cutting the exposed diamonds may crack. or break. The material simultaneously starts to abrade the metal matrix, which. releases more diamonds. The more abrasive the material, the more rapid. the tendency to wear down the matrix. Blades for cutting hard, denseless. abrasive materials (such as tile, bricks, stone or cured concrete), require. a softer metal matrix. This will wear down faster, replacing the worn diamonds. fairly quickly so that the blade continues to cut. Blades for cutting soft,. abrasive materials (such as green concrete and asphalt), must have a hard,. abrasion-resistant metal matrix in order to retain the diamonds for a longer. time.
