Bending strength of porous metal-bond diamond wheel segment

To balance the intensity and porosity of porous metal-bond,different mass fractions of pore formers and brazing fillers,as well as diamonds with different sizes and contents,are made into metalbond segements to test their bending strength.The results show that pore formers will dent the bending strength while brazing fillers consolidate the strength.As with the diamonds,it is found that segments with finer diamonds are difficult to break up.In conclusion,adjusting the ratio of raw materials would satisfy requirements on intensity with optimized porosity.