1.hard grinding material, choose the soft, fine grit grinding wheel. Soft grinding material, should choose a hard, coarse grit grinding wheel. By doing this ,grinding wheel loss is small, also not easy to plug.
2. when doing the rough grinding ,in order to increase the productivity, the coarse grit, soft grinding wheel should be chosen,In order to improve the surface quality of the work piece during accurate grinding , the fine grit ,hard grinding wheel should be chosen.
3.the large area of grinding or thin-walled work piece grinding should choose the coarse grit, soft grinding wheel. This wheel is not easy to plug, the surface of the work piece is not easy to burn, the work piece is not easy to deformation.
4. form grinding process to select the fine grit, the small organization, and the hard grinding wheel to maintain the profile of the grinding wheel.