A diamond saw blade is a circular steel disc （core） with an edge of metal bonded diamond segments which act as cutting teeth. The edge of the diamond can have segmented, continuous rim or serrated diamond cutting sections. The blade core is usually, but not always, a ground flat, steel disc. Some cores have sound deadening features. Segmented blades are usually slotted （”gullets“） which provide more efficient cooling by allowing water or air to flow between the segments. Gullets also allow the blade to flex under cutting pressure.  Most blade cores are leveled and tensioned at the factory for the specific rpm the blade will be operated at. Correct blade tension allows the blade to bend under cutting pressure and ”snap“ back into position. Diamond segments or rims are mostly composed of diamonds and metal powders. Diamonds used in blades are virtually always synthetic diamonds varying in size and toughness. In the manufacturing process, the metal powder and diamond grit mixture is hot pressed at high temperatures to form a solid metal alloy （called the bond or matrix） in which the diamond grit is retained. The segment or rim is slightly wider than the blade core to reduce cutting friction from the steel core. Several different manufacturing methods are used to assemble segmented diamond saw blades.

　　Brazing

　　Silver brazing material is placed between the segment or rim and the core. At higher temperatures around 650 to 700 degrees centigrade, the solder melts and joins the two parts together.

　　Laser Welding.

　　The diamond segment and blade core are welded together by a laser.

　　Mechanical bond.

　　A notched, serrated or textured blade core may be used to ”locate“ the diamond rim or segments onto the edge of the blade. Mechanical bonds usually also include brazing or other metallurgical bonding processes to hold the rim or segments in place.

　　

　　Link to the home page: http://www.wanbanglaser.com