Diamond and cubic boron nitride (CBN) are considered to be the hardest known grinding materials and are therefore often referred to as “super-abrasives”. For this reason they are suitable for machining materials which are difficult or even impossible to grind with conventional abrasives such as silicon carbide or corundum. Diamond and CBN have the same crystal structure, with diamond consisting of pure carbon, whilst CBN is made up of the elements boron and nitrogen.
While diamond is available as natural grain as well as synthetically produced, CBN originates exclusively from synthes
Bonded precision grinding tools in
Diamond and CBN
Resin bonds
Resin-bonded grinding tools have an excellent cutting capacity and a cool cut, designed for use in a wide variety of applications both with Diamond and in CBN. Certain bonds can also be used for dry grinding.
Metal bonds
Due to their superb grit retention power, metal-bonded grinding tools have an excellent stability of shape – a decisive point when grinding profiles, for instance.
The ability of leaking off grinding heat much better makes these bond systems the ideal choice for flute grinding (mills, drills, etc.), with enhanced productivity
Metal-vitrified bonds
They differ from classic vitrified bonds only in their manufacturing process. Classic vitrified bonds are “pressure-free sintered“, i.e. stoved in the furnace without pressing. Similar to metal bonds, metal-vitrified bonds are pressed under high temperatures.
Typical applications for metal-vitrified bonds are internal grinding, cutting sapphire and oxide ceramic, honing tools and – for CBN – purling and flute grinding.