Page 197 - oxcatalog-2019
P. 197

This is how a diamond blade works



           What is a diamond blade?



          A diamond blade is composed of two fundamental elements: a steel plate and a diamond-impregnated
          segment. The latter may have a number of appearances: the segmented rim, the continuous rim, the castellated rim, or the integral
          segment, which means that the segment is fully integrated into the core blade.
















           Segmented rim              Turbo segmented rim        Semi continuous rim      Continuous rim

          The steel plate is of very high quality, treated, hardened steel. Slots separate the segments which contribute to the cooling of the blade
          during sawing by allowing the water (wet cutting) or the air (dry cutting) to flow between the segments. They also allow the blade a
          certain amount of flexibility during cutting. The segments contain a mixture of diamonds and metal powder. During the manufacturing
          process, the metal powder and diamond mixture is compressed at a very high temperature in order to obtain a solid metal alloy which
          holds the diamonds. The segment or rim is slightly wider than the steel blade to allow the attacking edge to penetrate the material
          without the steel blade rubbing against it.

          In a diamond tool properly suited to the material to be cut, the equilibrium between the work of the diamond and the abrasion-resistance
          of the bond is optimum; the diamond is held in place until it is destroyed and new crystals appear.

          It is in this equilibrium that all the quality of the diamond tool resides. A blade intended for cutting hard, dense (less abrasive) materials
          requires a softer metal matrix. This wears out more rapidly, by replacing the worn diamonds relatively quickly so that the blade continues
          to cut. A blade intended for cutting soft, abrasive materials must have a hard, abrasion-resistant blade in order to retain the diamonds
          longer.





                                                                                                   Brazed
                                  Wide slots or narrow slots
                                                  Segments
                                                                                                   Laser welded
                                                    Backing

                                                      Bore
                                                                                                   Sintered on steel
                                                  Steel core

                                                                                                   Integral







          The OX Book 2019 Edition 1                                                                           Page  197
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