Sintered metal bonded grinding wheel mostly bronze and other metals as a binder, with a high temperature sintering process manufacturing, high granite cutting disc bonding strength, formability, high temperature, thermal conductivity, good wear resistance, long life, can withstand greater loads. Wheel sintering process because inevitably kept the contraction and deformation, it must be shaped grinding wheel before use, but more difficult dressing. The current production methods commonly used plastic wheel on the roll when not trimmed

Laborious and trim off the diamond particles larger process, wheel dressing itself consumes large, low-shaping accuracy.
In recent years, scholars from various countries have launched a special processing method applied metal bond diamond wheel dresser research work woodworking saw blade, mainly electrolytic dressing method, spark trimming method composite dressing method. Electrolytic dressing Act fast, but shaping accuracy is not high; high precision EDM shaping trimming method, can be either plastic dressing, but plastic is slower; composite trimming method electrolytic spark composite trim, mechanical chemical complex trimming method etc., dressing better, but the system is more complex, so the sintered diamond dressing the problem still has not been solved.
In addition, due to the grinding wheel manufacturing process determines its surface morphology random, each abrasive geometry, distribution and bench grinder wheels cutting edge which highly inconsistent, so only a handful of high grinding cutting edge cut into the work, limiting the grinding quality grinding efficiency is further improved.