When undertaking deepness grinding is machined, have pottery and porcelain when first selection the poriferous emery wheel of abrade grain. Current, have a kind of for a special purpose new-style and efficient abrade grain has persistent section stability, measure in the grinding that work can improve significantly when abrade treatment, can prolong the service life of emery wheel. Grind greatly, the interface that the characteristic that makes tine and plane abrasion treatment is emery wheel and workpiece is big, feed rate is measured high with purify big. To avoid mark of workpiece occurrence bake in a pan and metallurgy flaw, the high temperature that must derive arise when abrade treatment quickly. And the poriferous grain structure that has a kind of built-in emery wheel suits to be used below the treatment condition of such extremes. The advantage of structure of this kind of poriferous grain is can refrigerative lubricant distributings equably, and have because of this kind of emery wheel osmotic, the high temperature that so abrade treatment produces can derive from the interface of emery wheel and workpiece quickly. This kind of method is the Norton-Vortex method of research and development of Saint-Gobain Abrasives company. Current, this kind of method has been mixed in tool production, aerospace, auto industry be able to apply in gear manufacturing industry. Current, the achievement of newest research and development of Vortex method is Vortex-2 (graph 1) . This kind of emery wheel is made by the electronic corundum that uses a kind of efficient craft to make, need not build Kong He to make chemically additive can form span of first-rate 3D grain artificially (graph 2) . Emery wheel is abrade the geometrical appearance of grain and makings of special type union make Vortex-2 emery wheel fights attrition function than common emery wheel taller, cooling lubricant is diffusible when abrade treatment can get ameliorative, cleared dig bits goes easily more simply. Graph the 1 Vortex-2 emery wheel that makes by the electronic corundum of special production, grain span realized maximize, conduce to cooling lubricating fluid diffuse graph 2 new-style and abrade grain are built-in in a kind of special efficient compound, such making abrade grain had the biggest section stability to apply component of this kind of emery wheel actually in abrade treatment to be able to make the interface decrescent of emery wheel and workpiece, because this attrition is mixed,the heat of abrade generation is able to decrease. Use this kind of emery wheel to be able to make abrade speed is accelerated, and the temperature of generation is inferior. The final result that gets below good case is, can prolong emery wheel service life 40% (applied situation is different, achieves final result is existing difference) . In the meantime, because increased cutting capacity, the abrade process capability of emery wheel becomes tiny, can shorten most so 60% workpiece treatment is periodic. In addition, because the appearance stability of emery wheel is taller, the situation that because this is when abrade exercise,needs corrective emery wheel is very few. Still have an additional profit to the user that now have been Vortex emery wheel: Can continue when use Vortex-2 emery wheel namely the experience when continue to use is using Vortex emery wheel. The Norton product of research and development of Saint-Gobain Abrasives company showed their advantage in machining practice: When the turbine blade that undertakes in use Vortex-2 emery wheel material of chromic ferronickel alloy pledges grinds treatment greatly, photograph comparing lengthened its service life and common emery wheel 30% , treatment cycle shortened 11% , the finished cost of every workpiece also was reduced 15% . In rolled steel of date of abrade treatment M6 qualitative wind-force generates electricity when the impeller of device, use Vortex-2 emery wheel is commonner than using emery wheel can shorten the handling time of the half, odd finished cost is only 70% what use common emery wheel. CNC Milling