Process and cutting performance of diamond tool with high Fe-content bond

High Fe-content bond are designed and mechanical tests and fracture texture observation are done to their sintered segment for the purpose of evaluating their rationality of the component design and sintering process. Results show that the designed high Fe-content bond with component of (Fe)75(CuSn10)15(Cu-Ni)10 has a proper sintering temperature range of 910 to 940 ℃, hardness over HRB 90 and bending strength over 1200 MPa. Dimple tissue structure are apparently observed on the fractures which indicates that the bond has been well alloyed. At the same time, the wide process range means that it is adaptable for commercial fabrication. A low cost laser welding universal diamond saw blade LW350 is fabricated with this bond and comparisons are made to representative same kind of diamond saws on market by cutting tests taken on steel reinforced C45 concrete. The results show that self-fabricated diamond saw has lower sharpness at a level of about 15% decrease and longer life of about 20% exceeding while the cost is cut down apparently.